Best free AI agents
Every tool below has a genuine free tier. We rank them by our editorial rating so you can start without paying.
CrewAI
Agents
4.6
Open-source multi-agent collaboration framework that orchestrates role-based agents to complete complex tasks.
Pros
Multi-agent orchestrationEasy to startOpen sourceActive ecosystem
Cons
Complex tasks need tuningCost hard to estimate
FreeFull review →
Manus
AI agent
4.4
A general AI agent that autonomously plans and completes multi-step tasks end to end.
Pros
Completes tasks autonomouslyParallel multi-agentEnd-to-end deliveryReusable outputs
Cons
Credits deplete fastOccasionally goes off-trackSlower on complex tasks
FreeFull review →
Genspark
AI agent
4.3
An AI platform centered on autonomous agents, strong at deep research and generative tasks.
Pros
Autonomous researchGenerates SparkpagesMulti-tool callingFast
Cons
Newer ecosystemCredit limitsAverage Chinese
FreeFull review →
天工 Skywork
AI agent
4.3
Kunlun's AI agent, strong at deep research, documents and local office automation.
Pros
Deep researchMultimodal officeDesktop local executionDocument generation
Cons
Newer ecosystemCredit limitsSeparate global/China versions
FreeFull review →