Use powerful AI models
completely free
The best free LLM API for developers. Access GPT-4o, Llama 3.3, Gemini 2.5 Flash and more AI models with zero cost. Seamlessly switch between unlimited free-tier providers like Groq, Gemini, and GitHub Models. One unified API, automatic fallback, no credit card required.
Supported Providers
Combine the power of Llama 3.3 (Groq), Gemini 2.5 Flash (Google), and GPT-4o (GitHub) for over 16,000+ free requests/day.
Why FreeFlow?
100% Free
No credit card required. Leverages generous free tiers from multiple top-tier providers.
Auto-Switching
Intelligently rotates providers when rate limits are hit. Effectively unlimited usage.
Unified API
Write once, run anywhere. A consistent interface across all supported backends.
Reliable
Automatic fallbacks ensure your application stays up even if one provider goes down.
Context Managers
Built-in resource cleanup handling for production-grade stability.
Streaming
Real-time response streaming support for chat-like experiences.
About FreeFlow LLM
What is FreeFlow LLM?
FreeFlow LLM is the most comprehensive free LLM API platform that provides developers with unlimited access to state-of-the-art AI models including GPT-4o, Llama 3.3 70B, and Gemini 2.5 Flash. Our platform aggregates multiple free-tier AI providers into a single, unified API interface, making it the perfect free AI API solution for developers, researchers, and businesses building AI-powered applications.
Why Choose Our Free LLM API?
Unlike other AI API services that require credit cards or have strict limitations, FreeFlow LLM offers truly unlimited access by intelligently rotating between multiple providers. When you hit the rate limit on one provider, our system automatically switches to another, ensuring your application never stops working. This makes FreeFlow the best free GPT API and free language model API alternative available today.
Supported AI Models
- GPT-4o via GitHub Models - Advanced reasoning and coding capabilities
- Llama 3.3 70B via Groq - Lightning-fast inference speeds
- Gemini 2.5 Flash via Google AI - Multimodal AI capabilities
- Combined daily quota of 16,000+ free requests
Perfect For
🚀 Developers
Build AI-powered apps without API costs. Perfect for prototypes, side projects, and MVPs.
🎓 Students & Researchers
Experiment with cutting-edge AI models for free. No credit card required.
🏢 Startups
Launch AI features without infrastructure costs. Scale affordably.
🤖 AI Enthusiasts
Test different LLM models and compare their capabilities for free.
How Does the Free LLM API Work?
FreeFlow LLM uses intelligent provider rotation to maximize your free tier usage. Our system monitors rate limits across all supported providers (Groq, Google Gemini, GitHub Models) and automatically routes your requests to available providers. This means you get effectively unlimited free access to premium AI models without any service interruptions.
Getting Started
Start using our free LLM API in minutes. Simply install the FreeFlow package, configure your provider API keys, and start making requests. Our unified API interface is compatible with OpenAI's API format, making migration seamless. Check out our documentation to get started.
🆓 100% Free Forever
FreeFlow LLM is completely free and open source. No hidden costs, no premium tiers, no credit card required. We believe AI should be accessible to everyone. Join thousands of developers already using the best free AI API available.