The AI that makes you a 10x developer
The best free models available right now, re-ranked daily, behind one chat and one OpenAI-compatible API. ZeroOptimize™ sends each request to the highest-ranked free model that is answering right now, and code requests lean towards the strongest coders.
Try it right now — no signup required
Try it now — no signup required
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Powered by ZeroOptimize™ —auto-picks the best model · No signup needed
Everything you need
- The best free models for code, re-ranked daily (live list at /leaderboard)
- ZeroOptimize™ routes to the best free model available, leaning towards strong coders
- Code review, refactoring, and architecture design
- Debug any language — Python, TypeScript, Go, Rust, SQL and more
- Explain complex codebases and generate documentation
- OpenAI-compatible API with function calling — works in Cline, Continue, Aider and more
- Custom agents pre-configured for your stack and style
Example prompts
ZeroOptimize™ sends each one to the highest-ranked free model that is answering at that moment, and fails over to the next if it is busy.
“Review my TypeScript function for performance issues”
“Write a Prisma migration for adding soft-delete to User”
“Solve this dynamic programming problem with explanation”
From $19 a year.
ChatGPT Plus costs $240 a year. ZeroLimitAI's Chat plan is $19 a year for the full app on the best free models. Annual ($99/year) adds the developer API, with paid models as backup.
30-day money-back guarantee · No credit card for trial
Frequently asked questions
Which AI model is best for coding?
It changes every few weeks as new free models appear. ZeroOptimize™ ranks every free model daily on published benchmarks (including a coding index) and LM Arena votes, then sends each request to the highest-ranked one that is answering at that moment. The live ranking is public at zerolimitai.com/leaderboard.
Is ZeroLimitAI good for professional developers?
Yes. You get an OpenAI-compatible API (with function calling) that plugs into tools like Cline, Continue and Aider, custom agents with system prompts, and the most capable free coding models available. Configure an agent for your stack (e.g., a Next.js + Prisma agent) and call it from the API. Free models answer first (on Annual, a paid model steps in at our cost when they are busy), and there are no embeddings.
Does ZeroLimitAI support all programming languages?
The top free models handle all mainstream languages and frameworks — Python, JavaScript/TypeScript, Go, Rust, Java, C++, SQL, shell scripts, and more.
How is ZeroLimitAI different from GitHub Copilot for coding?
GitHub Copilot is built around inline autocomplete inside your IDE and is a monthly subscription. ZeroLimitAI is a chat and an API: use it for architecture questions, code review, debugging and explaining code, or plug the API into an editor agent like Cline or Continue. Annual is $99 a year with 2,000 API calls a day, and paid models answer at our cost when the free ones are busy.
Start coding smarter
Try it free for 3 days with no card. The trial also includes an API key for 7 days at 25 calls a day.