Machine Learning Interview Questions and Answers 2026
Mon, 09 December 2024
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Have you heard of AI agents? AI agents are software systems that use AI to perform activities and achieve goals on behalf of users when completing configurational tasks. They possess reasoning, planning, and memory, and a level of autonomy is given to the agents, which allows them to make decisions, learn, and adapt.
The worldwide artificial intelligence (AI) market size has been rising on a daily basis; you will be astonished to hear that in 2024 it was USD 638.23 billion. It is calculated at USD 638.23 billion in 2025 for the second year in a row, with projections hitting around USD 3,680.47 billion by 2034. The market is roaring high and rising at a CAGR of 19.20% from 2025 to 2034.
In this blog, we will go through the collection of the top 10 AI agents that have made a significant impact on content creation, SEO optimization, and workflow productivity across various industries today.
The capabilities of AI agents are made possible largely by the generative AI and foundation multimodal capabilities. While AI agents may browse, interpret, and analyse simultaneous multimodal information in texts, voices, videos, audio, code, and many others, they can converse, reason, learn, and make decisions.
In simple terms, the AI agent is a category of software or system that can perform tasks on its own with the use of data, algorithms, and decision-making models.
An AI agent is like a digital decision-maker. It begins by perceiving its surroundings with sensors or by capturing some form of digital data. Then it uses machine learning and reasoning algorithms to process that data to make sense of those circumstances so it can make effective decisions. Finally, it will do things that help achieve a particular goal in the most efficient way.
You can think of an AI agent like an intelligent assistant, like ChatGPT, Siri, or Google Assistant, now evolving into more advanced artificial intelligence contextual entities.
As artificial intelligence agents become essential tools for navigating the digital landscape today, choosing the best one may determine how well you utilise an AI agent. Regardless of your role—a businessperson, developer, or enthusiast about technology—if you know about the characteristics of the best AI agent, you can choose the option to achieve your goals. In this context, we will outline the main factors for AI agents and tools in 2026.
The best AI agents will be built on platforms that provide usability that does not sacrifice capability. Use AI agent platforms that are equipped with simple dashboards that encourage low-code or no-code environments and dashboard-based visualisation criteria. For example, the AI agent platforms provided by Microsoft Copilot and OpenAI GPT-5 Agents are built on a usability premise that potential users have requested that allows tech-savvy users, as well as users without technical sophistication, to have seamless experiences.
A reputable AI agent platform should continue to grow as you grow. As businesses grow, the platform needs to be able to handle more workloads, more data, and more complex workloads without a significant performance delay. The best AI agents are based on a cloud-based infrastructure and emphasise reliability and ease of scaling. Enterprises have given positive comments about cloud-based AI Agent offering, such as Google Gemini AI, in which the platform is robust enough to accommodate workload changes without requiring continuous manual maintenance.
AI agents typically do not work in isolation. Agents are designed to work with a previous database, systems, and APIs, and the best agents will seamlessly pass work through existing CRM tools, ERP software, communication channels, or data warehousing. Anthropic's Claude Agents, for example, offer great flexibility in integrations so that users can create AI-powered workflows across multiple environments without much effort.
Every great AI tool rests on the reliability of its customer support and its security framework. Look for tools and platforms with high-quality documentation, an active user base involved in forums, and technical support available 24/7. The best agents also offer compliance with various standards and sometimes world-located policies such as GDPR and ISO standards, giving businesses confidence in handling sensitive information.
Finally, you should check the AI agent platform service with case studies or user reviews. The best AI agents are those that support effectiveness—automating customer service, delivering insights, or optimising operations in different fields of work such as healthcare, finance, and marketing.
Cognition Labs created Devin AI, one of the top AIs of all time for developers. Devin AI autonomously performs a rich set of programming tasks from start to finish. It can write, debug, and deploy code in multiple environments, truly a new generation of AI in programming. Good for software engineering or DevOps.
Developer: Devin (coding-agent specialist)
Pricing: From ~$500/month for full features (coding-agent focus)
Core: Pay as you go, starting at $20
Team: $500/month
Custom: Custom pricing as per needs
Best Field: Software development & engineering automation
Features: Autonomous coding, debugging, executing multi-step code tasks
Pros: High productivity for dev teams; advanced reasoning
Cons: High cost; largely developer-oriented (less for non-technical users)
Gumloop is an automation platform with no-code that allows users to generate AI workflows visually. It is great for marketers, entrepreneurs, and small teams wishing to automate repetitive tasks online such as generating leads, outreach to customers, and engaging with social media.
Developer: Gumloop (Startup)
Pricing: Starting around -$37/month (in 2025)
Free Version Available
Solo User: $37/month
Team: $244/month
Best Field: Marketing automation, lead generation, web-scraping workflows
Features: No-code visual workflow builder, subflows and templates for marketing tasks
Pros: Very accessible; marketing teams friendly
Cons: May lack enterprise-scale features; less suited for complex automation
Developed to streamline marketing and customer success automation, Relay.app provides prebuilt AI agents that automate repetitive communication, reporting, and workflow management. The platform emphasizes affordability and ease of setup, appealing to small and medium-sized businesses (SMBs)
Developer: Devin (coding-agent specialist)
Free Version Available
Pro: $19/month (Professional)
Team: ~$69/month (2025)
Best Field: Agencies, service providers, customer-success team
Features: Simple agent builder for workflow automation in agency settings
Pros: Very affordable; useful for smaller teams
Cons: May lack depth/advanced features for large enterprises
Lindy AI, developed by Lindy Labs, empowers organisations to build “AI employees” that work collaboratively across functions like HR, finance, and operations. Its multi-agent system allows complex workflows to be executed autonomously, making it ideal for enterprises and large organisations.
Developer: Gumloop (Startup)
Pricing: Usage-based; enterprise pricing (not always publicly disclosed)
Free Version Available
Pro User: $49.99/month
Business: $199.99/month
Enterprise: Custom pricing as per need
Best Field: Multi-agent orchestration, operations, data-heavy tasks
Features: Build a “workforce” of agents with integrations across many data sources
Pros: Good for complex workflows and multiple agents
Cons: Complexity grows; might require more planning/architecture
Do you want to know about the future of AI ? Check out this blog for more.
Voiceflow is a creative powerhouse in the voice and chatbot industry, allowing users to design conversational AI agents for Alexa, Google Assistant, and custom voice interfaces. Developed by Voiceflow Inc., the tool is widely used in UX design, customer experience, and product development.
Developer: Gumloop (Startup)
Pricing: Usage-based; enterprise pricing (not always publicly disclosed)
Free Version Available
Pro User: $49.99/month
Business: $199.99/month
Enterprise: Custom pricing as per need
Best Field: Multi-agent orchestration, operations, data-heavy tasks
Features: Build a “workforce” of agents with integrations across many data sources
Pros: Good for complex workflows and multiple agents
Cons: Complexity grows; might require more planning/architecture
Chatbase, created by Google, is one of the most popular platforms for developing conversational AI agents and chatbots. It enables users to build customer support and knowledge-based bots using uploaded documents, FAQs, and data sources. It is designed for businesses and customer service teams.
Developer: Chatbase (company)
Pricing: Subscription + usage; varied pricing (not always clearly published)
Free Version Available
Hobby Version/Casual Use: $40/month
Standard User: $150/month
Pro User: $500/month
Enterprise: Custom pricing as per need
Best Field: Customer support, knowledge-base agents
Features: Quick set-up for conversational agents + knowledge management, multimodal support
Pros: Strong for chat/knowledge use-cases
Cons: May not cover full process automation or complex enterprise orchestration
Created by Postman, the popular API collaboration platform, the Postman AI Agent Builder is tailored for API engineers and backend developers. It allows users to design intelligent agents that can understand and automate API workflows without extensive coding. Integration with Postman’s existing API ecosystem ensures seamless compatibility and productivity gains.
Developer: Postman Inc.
Pricing: Pay-as-you-go for deeper usage; standard Postman tiers
Free Version Available
Basic User: $14/month
Pro User: $29/month
Enterprise: $49/month
Best Field: DevOps, API-centric automation, internal tools
Features: Build agents that integrate with 18,000+ APIs, no-code + custom logic support
Pros: Strong for API-driven workflows; flexible
Cons: Less suited for non-API/non-dev workflows; might require some technical familiarity
Developer: OpenAI
Pricing: (For Operator) research-preview / limited-release; (For Agents SDK) open-source / free to use (though usage of underlying models incur API costs)
Free Version Available: Yes (Agents SDK is open-source; Operator is in research preview)
Best Field: AI agents, automation, developer tooling, multi-agent workflows
Operator: an AI agent able to browse the web and interact with webpages (click, scroll, type) to automate tasks. Agents SDK: a framework for building agentic applications (single- or multi-agent systems) with abstractions like Agents, Handoffs, Guardrails, Sessions, and tracing/observability.
Offers high flexibility for developers to build sophisticated agents with built-in orchestration & tooling.
The Agents SDK supports wide model compatibility (not just OpenAI’s) and is designed to reduce boilerplate.
Operator opens up automation of tasks (e.g., web-based workflows) where direct APIs may not exist.
Operator (in its current research-preview form) has limited availability and may struggle with complex UI workflows.
The Agents SDK still requires developer/engineering familiarity; building effective agents and defining tools/handoffs may have a learning curve.
As with any agentic system, there is a risk of unexpected behaviours, tool misuse or need for careful safety/guardrail design.
Developer: Microsoft Corporation
Pricing:
Three types of planning –
Individual plans:
Personal: $9.99
Family: $12.99
Premium: $19.99
Business Plans:
Microsoft 365 Copilot chat: Included with Microsoft 365
Microsoft 365 Copilot: $30
Microsoft business basic : $36
Now Microsoft Copilot has a section called Copilot Studio which has three variations:
Microsoft Copilot Studio : $200
Microsoft Copilot Variable and Pay-as-you-go plans are also available
Best Field: Productivity & workplace automation, knowledge-worker assistance, internal tools, multi-modal interaction (text, voice, vision), developer-built agents in enterprise workflows
The Copilot app can now be a multi-faceted "Vision" assistant, where it can view/share your desktop/app windows ("Desktop Share") and respond to what it sees for real-time assistance and insights.
It can also be integrated into your MS 365 apps, including Word, Excel, etc., to help with draughting/designing content, summarisation, data analysis, and in-context chat.
Developers/enterprises can also build agents via Copilot Studio, which can include connectors, workflows, and multi-step logic and be utilised across channels (like internal portals, Teams, etc.).
The promises are of security, compliance, and enterprise-grade governance for its use in businesses.
Seamless integration with the existing Microsoft ecosystem (365 apps, Azure, Teams) makes adoption smoother.
Advanced vision and multi-modal capabilities help users interact in richer ways than pure text chat (e.g., Copilot Vision “sees what you see” on your screen).
Agent/Studio capability allows customization for internal workflows and automation, not just out-of-the-box chat.
Premium tiers (especially business/agent features) may carry substantial cost (per-user + consumption + message packs).
Requires users and organizations to already be embedded in the Microsoft/365 ecosystem to gain full benefits—standalone use may be less rich.
Building high-value custom agents still involves design/development effort (not purely plug-and-play for every scenario).
Some features (especially vision/desktop-sharing) are still rolling out or limited to certain markets/devices.
Developer: Oracle Corporation
Pricing:
The pricing is quote-based; contact sales for the agent itself.
More broadly, the underlying platform for generative AI agents (OCI Generative AI Agents) from Oracle uses usage-based pricing: e.g., US $0.003 per transaction for 10,000 transactions.
Also, for the related tool Oracle AI Agent Studio, Oracle states the Studio is available “at no additional cost” for Fusion Cloud customers.
Best Field: Productivity & enterprise workflow automation (finance, HR, supply chain, customer service)—embedded in enterprise SaaS (Oracle Fusion Cloud).
This is about the use of cloud-based applications to automate business processes in departments like Finance, HR, Supply Chain, Sales & Service through Oracle Fusion Cloud Applications.
The company automates the multi-step workflows of the business, which also involve different functions such as requesting a quote from a vendor, creating a purchase request, invoice management, and working with various roles and systems.
Generative AI and retrieval-augmented generation applied to business transaction data, the agent uses business context/roles and metadata to drive the outcome.
Deep integration with a broad enterprise application ecosystem (Oracle Fusion Cloud) means less “bolting on” and more embedded intelligence.
Multi-domain support (finance, HR, supply chain, customer service) helps organisations streamline a range of processes, not just one function.
Using generative AI in a context-aware way (enterprise transaction + data + workflow) gives more powerful automation than generic chatbots.
For customers of Oracle Fusion Cloud, the “Agent Studio” component reportedly comes at no extra cost (for the base tool), which helps adoption.
Pricing is not clearly public for the agent package—you must contact sales/enterprise negotiation, which adds friction and uncertainty.
Because the tool is deeply embedded in the Oracle Fusion Cloud ecosystem, organizations outside that stack may have less benefit or may need additional integration work.
While powerful, implementing custom agents and workflow customization still requires organizational setup and change management and may not be fully plug-and-play out of the box.
For enterprises not yet on Oracle Fusion Cloud, switching or integrating may carry cost/complexity.
Cost-saving and efficiency improvements in healthcare operations.
Goal-based AI for treatment planning (choosing therapies, optimising outcomes).
AI’s accuracy in medical diagnoses (e.g., analysing images, detecting conditions).
NLP for improved patient interaction (chatbots/virtual assistants answering health queries).
Healthcare administration & cost reduction (revenue cycle management, automating back office).
Compliance and data-security support in healthcare (automated checks for regulations like HIPAA).
Building patient trust via AI health assistants (handling simple queries, monitoring).
AI detection of fraud (looking at massive transactions).
Risk evaluation (predictive analytics, stress-testing, utility-based decision-making).
When machines trade (agents trade, market analysis).
Predictive maintenance (based on sensors and past data to predict equipment failure).
Quality (check manufacture, maintain quality, improve defects).
Maximization of the production processes (throughput improvement, downtime minimisation and labor cost minimization).
Order placement and tracking (agents handling orders, delivery status, and user updates).
Personalized recommendations (learning user behavior, suggesting products).
Dynamic pricing systems (analyzing demand and competition and adjusting prices automatically).
HR use cases: onboarding automation, generating access, policy/benefits question and answers, scheduling interviews,
Sales: prospecting leads and lead enrichment, composing sequences, scheduling meetings, and data hygiene in the CRM,
Marketing: campaign brief writing, setting up campaigns across all channels, segmentation of audiences, A/B testing, and post-campaign reporting.
Instant response & 24/7 support (AI agents providing immediate help, chatbots for many queries).
Escalating complex customer issues to humans (when the agent detects the need for human intervention).
Autonomous driving (agent layers handling perception, planning, and execution in vehicles).
Mobile robots & drones (fleet coordination, coverage planning, collision avoidance, charging optimisation).
Industrial robotics (task agents + supervisor agents + learning agents in manufacturing)
The excitement surrounding AI agents suggests there are no bounds to what they can do — and while the excitement is real, the reality is a bit more complicated. The market for AI agents is indeed projected to reach $150 billion around 2025, but much of that growth is expected to come from speculative investment rather than actual scaled adoption.
Yes, it is true that 85% of reports indicate the vast majority of enterprises are planning to adopt AI agents, yet many of those enterprises are still determining if they have the infrastructure and data to deploy their AI agents.
Promises of rapid ROI through cost savings and revenue gains haven’t entirely materialised — in fact, only 34% of CEOs report tangible financial benefits so far. Similarly, while marketing hype suggests fully autonomous agents, most systems still require human oversight and face challenges around memory and contextual understanding.
Security, often marketed as “secure by design,” remains a top concern, with vulnerabilities emerging as adoption grows. And although AI agents are touted as cross-industry game changers, their real successes are concentrated in operations, HR, IT, and customer support, where structured workflows make automation more achievable.
Business is evolving — and AI agents are at the heart of it. Companies are utilizing AI agents to overhaul operations and enhance choices. We're approaching 2026, where innovation collides with real shifts. Find, adjust to, and use intelligent tools to boost your business.
In essence, the AI and Machine Learning Masters Program empowers you to transform data into strategic, real-world solutions—building the expertise that defines tomorrow’s innovators. Complementing this, the ISO/IEC 42001 Lead Implementer course equips you to manage AI systems responsibly and effectively, positioning you as a future-ready professional in an evolving tech landscape.
Ans: Data scientists are in demand everywhere. They mix tech know-how with business smarts, and honestly, every industry wants them—healthcare, IT, transportation, education, retail, e-commerce, manufacturing, you get the idea. In India, data science isn’t just trendy. It’s one of the top ways people land high-paying jobs and open doors to real opportunities.
Ans: To put it differently: In terms of automating technology, automation will transform the nature of manufacturing, distribution, customer service, and retail by 2026. Then, intelligent systems will handle all the basic repetitive tasks with a lot of efficiency giving people the time to provide their brains to the innovative problem-solving and other work that creates value instead of performing mechanical tasks.
Ans: The best agent to invest in depends on your goals. For productivity, tools like Copilot boost daily tasks; for business workflows, options from Oracle or Salesforce streamline operations; and for creativity, assistants like Notion or Jasper truly stand out.
Ans.: The best AI agent tool depends entirely on your specific needs, such as CrewAI for multi-agent teams, AutoGen for advanced collaboration, or Lindy/Gumloop for no-code automation.
Ans: Agentic AI refers to an AI system capable of planning, reasoning, and executing complex, multi-step tasks autonomously to achieve a defined goal.
Have you heard of AI agents? AI agents are software systems that use AI to perform activities and achieve goals on behalf of users when completing configurational tasks. They possess reasoning, planning, and memory, and a level of autonomy is given to the agents, which allows them to make decisions, learn, and adapt.
The worldwide artificial intelligence (AI) market size has been rising on a daily basis; you will be astonished to hear that in 2024 it was USD 638.23 billion. It is calculated at USD 638.23 billion in 2025 for the second year in a row, with projections hitting around USD 3,680.47 billion by 2034. The market is roaring high and rising at a CAGR of 19.20% from 2025 to 2034.
In this blog, we will go through the collection of the top 10 AI agents that have made a significant impact on content creation, SEO optimization, and workflow productivity across various industries today.
The capabilities of AI agents are made possible largely by the generative AI and foundation multimodal capabilities. While AI agents may browse, interpret, and analyse simultaneous multimodal information in texts, voices, videos, audio, code, and many others, they can converse, reason, learn, and make decisions.
In simple terms, the AI agent is a category of software or system that can perform tasks on its own with the use of data, algorithms, and decision-making models.
An AI agent is like a digital decision-maker. It begins by perceiving its surroundings with sensors or by capturing some form of digital data. Then it uses machine learning and reasoning algorithms to process that data to make sense of those circumstances so it can make effective decisions. Finally, it will do things that help achieve a particular goal in the most efficient way.
You can think of an AI agent like an intelligent assistant, like ChatGPT, Siri, or Google Assistant, now evolving into more advanced artificial intelligence contextual entities.
As artificial intelligence agents become essential tools for navigating the digital landscape today, choosing the best one may determine how well you utilise an AI agent. Regardless of your role—a businessperson, developer, or enthusiast about technology—if you know about the characteristics of the best AI agent, you can choose the option to achieve your goals. In this context, we will outline the main factors for AI agents and tools in 2026.
The best AI agents will be built on platforms that provide usability that does not sacrifice capability. Use AI agent platforms that are equipped with simple dashboards that encourage low-code or no-code environments and dashboard-based visualisation criteria. For example, the AI agent platforms provided by Microsoft Copilot and OpenAI GPT-5 Agents are built on a usability premise that potential users have requested that allows tech-savvy users, as well as users without technical sophistication, to have seamless experiences.
A reputable AI agent platform should continue to grow as you grow. As businesses grow, the platform needs to be able to handle more workloads, more data, and more complex workloads without a significant performance delay. The best AI agents are based on a cloud-based infrastructure and emphasise reliability and ease of scaling. Enterprises have given positive comments about cloud-based AI Agent offering, such as Google Gemini AI, in which the platform is robust enough to accommodate workload changes without requiring continuous manual maintenance.
AI agents typically do not work in isolation. Agents are designed to work with a previous database, systems, and APIs, and the best agents will seamlessly pass work through existing CRM tools, ERP software, communication channels, or data warehousing. Anthropic's Claude Agents, for example, offer great flexibility in integrations so that users can create AI-powered workflows across multiple environments without much effort.
Every great AI tool rests on the reliability of its customer support and its security framework. Look for tools and platforms with high-quality documentation, an active user base involved in forums, and technical support available 24/7. The best agents also offer compliance with various standards and sometimes world-located policies such as GDPR and ISO standards, giving businesses confidence in handling sensitive information.
Finally, you should check the AI agent platform service with case studies or user reviews. The best AI agents are those that support effectiveness—automating customer service, delivering insights, or optimising operations in different fields of work such as healthcare, finance, and marketing.
Cognition Labs created Devin AI, one of the top AIs of all time for developers. Devin AI autonomously performs a rich set of programming tasks from start to finish. It can write, debug, and deploy code in multiple environments, truly a new generation of AI in programming. Good for software engineering or DevOps.
Gumloop is an automation platform with no-code that allows users to generate AI workflows visually. It is great for marketers, entrepreneurs, and small teams wishing to automate repetitive tasks online such as generating leads, outreach to customers, and engaging with social media.
Developed to streamline marketing and customer success automation, Relay.app provides prebuilt AI agents that automate repetitive communication, reporting, and workflow management. The platform emphasizes affordability and ease of setup, appealing to small and medium-sized businesses (SMBs)
Lindy AI, developed by Lindy Labs, empowers organisations to build “AI employees” that work collaboratively across functions like HR, finance, and operations. Its multi-agent system allows complex workflows to be executed autonomously, making it ideal for enterprises and large organisations.
Do you want to know about the future of AI ? Check out this blog for more.
Voiceflow is a creative powerhouse in the voice and chatbot industry, allowing users to design conversational AI agents for Alexa, Google Assistant, and custom voice interfaces. Developed by Voiceflow Inc., the tool is widely used in UX design, customer experience, and product development.
Chatbase, created by Google, is one of the most popular platforms for developing conversational AI agents and chatbots. It enables users to build customer support and knowledge-based bots using uploaded documents, FAQs, and data sources. It is designed for businesses and customer service teams.
Created by Postman, the popular API collaboration platform, the Postman AI Agent Builder is tailored for API engineers and backend developers. It allows users to design intelligent agents that can understand and automate API workflows without extensive coding. Integration with Postman’s existing API ecosystem ensures seamless compatibility and productivity gains.
Operator: an AI agent able to browse the web and interact with webpages (click, scroll, type) to automate tasks. Agents SDK: a framework for building agentic applications (single- or multi-agent systems) with abstractions like Agents, Handoffs, Guardrails, Sessions, and tracing/observability.
Now Microsoft Copilot has a section called Copilot Studio which has three variations:
Business is evolving — and AI agents are at the heart of it. Companies are utilizing AI agents to overhaul operations and enhance choices. We're approaching 2026, where innovation collides with real shifts. Find, adjust to, and use intelligent tools to boost your business.
In essence, the AI and Machine Learning Masters Program empowers you to transform data into strategic, real-world solutions—building the expertise that defines tomorrow’s innovators. Complementing this, the ISO/IEC 42001 Lead Implementer course equips you to manage AI systems responsibly and effectively, positioning you as a future-ready professional in an evolving tech landscape.
Ans: Data scientists are in demand everywhere. They mix tech know-how with business smarts, and honestly, every industry wants them—healthcare, IT, transportation, education, retail, e-commerce, manufacturing, you get the idea. In India, data science isn’t just trendy. It’s one of the top ways people land high-paying jobs and open doors to real opportunities.
Ans: To put it differently: In terms of automating technology, automation will transform the nature of manufacturing, distribution, customer service, and retail by 2026. Then, intelligent systems will handle all the basic repetitive tasks with a lot of efficiency giving people the time to provide their brains to the innovative problem-solving and other work that creates value instead of performing mechanical tasks.
Ans: The best agent to invest in depends on your goals. For productivity, tools like Copilot boost daily tasks; for business workflows, options from Oracle or Salesforce streamline operations; and for creativity, assistants like Notion or Jasper truly stand out.
Ans.: The best AI agent tool depends entirely on your specific needs, such as CrewAI for multi-agent teams, AutoGen for advanced collaboration, or Lindy/Gumloop for no-code automation.
Ans: Agentic AI refers to an AI system capable of planning, reasoning, and executing complex, multi-step tasks autonomously to achieve a defined goal.
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