Best AI Agent — Top AI Agents in 2026
AI agents autonomously research, plan, and execute multi-step tasks. ZeroTwo's Deep Research agent searches 50+ sources and delivers comprehensive, cited reports — powered by 60+ AI models. Free to start.
What is an AI agent?
An AI agent is an autonomous AI system that can independently research, plan, and execute multi-step tasks — going far beyond simple question-and-answer chatbots.
Multi-Source Research
Autonomously searches and synthesizes information from 50+ sources in a single research task. Cross-references findings for accuracy.
Task Planning
Breaks down complex questions into sub-tasks, creates a research plan, and executes each step autonomously without manual guidance.
Web Browsing
Browses the live web to find current information, academic papers, news articles, and data. Not limited to training data cutoffs.
Cited Report Generation
Produces comprehensive, well-structured reports with inline citations. Every claim linked to its source for verifiability.
Best AI agents compared (2026)
How ZeroTwo Deep Research stacks up against other AI agents.
| AI Agent | Sources | Citations | Multi-Model | Price |
|---|---|---|---|---|
| ZeroTwo Deep ResearchBest Value | 50+ sources | Yes | Yes (60+ models) | Free / $29.99/mo |
| ChatGPT Operator | Web browsing | Limited | No (GPT only) | $20/mo (Plus required) |
| Google AI Agents | Google Search | Yes | No (Gemini only) | Free / Paid tiers |
| Perplexity Pro | Web search | Yes | Limited | $20/mo |
Power your AI agent with any model
Unlike other AI agents locked to one model, ZeroTwo lets you choose the brain behind your agent.
GPT-5
Claude Sonnet 4.5
Gemini 3 Pro
Grok 4
Perplexity
DeepSeek R1
Mistral Large
Cohere Command A
Qwen 3
Llama 4 (Groq)
Kimi K2.5
Liquid LFM
What makes ZeroTwo the best AI agent
Multi-model deep research, autonomous execution, and cited reports — all in one platform.
How ZeroTwo's AI agent works
From task to comprehensive report in three simple steps.
Define your task
Tell the AI agent what you need — a research report, competitive analysis, topic deep-dive, or any multi-step task. Be as specific or broad as you want.
Agent researches autonomously
ZeroTwo's AI agent creates a research plan, searches 50+ sources, cross-references findings, and synthesizes everything — all autonomously without your input.
Get your cited report
Receive a comprehensive, well-structured report with inline citations. Review findings, ask follow-up questions, or launch a new research task.
AI agent access, free to start
Try ZeroTwo's AI agent for free. Upgrade to Pro for unlimited deep research and all 60+ models.
Compare all AI pricing or explore our Deep Research feature. New to agents? Start with our walkthroughs on how to use an AI agent to sort emails or how to use AI for sales prospecting.
- -Access to AI chat with popular models
- -Limited deep research tasks
- -Basic web search agent
- -Standard response speed
- -No credit card required
- -All 60+ AI models (GPT-5, Claude, Gemini, Grok & more)
- -Unlimited deep research agent tasks
- -Multi-agent research with 50+ sources
- -Image generation (GPT Image, FLUX, Imagen)
- -Canvas & code assistant
- -Priority response speed
- -Cancel anytime
Frequently asked questions
Put the best AI agent to work
Autonomous research. 50+ sources. Cited reports. Powered by 60+ AI models. Free to start.
Try AI Agent Free