Free LLM API

Access 1 billion tokens per month for free

Freemium
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API
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Data & AnalyticsAI LLM Pricing & Comparison ToolsDeveloper Tools

Try Free LLM API free

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What is Free LLM API?

Free LLM API is an OpenAI-compatible proxy that pools free-tier API keys from approximately 14 different AI providers. It automatically routes requests to available providers and switches to alternatives if one fails, giving you access to multiple language models without paying for API credits. The service offers 1 billion tokens per month at no cost, making it useful for personal projects, prototyping, and experimentation. This is not intended for production use or commercial applications; it's designed for developers who want to test LLM functionality without cost constraints during development.

Key features

OpenAI API compatibility

Use standard OpenAI client libraries and code without modification

Multi-provider aggregation

Draws from approximately 14 free-tier AI providers to distribute load

Automatic failover

Switches to alternative providers if one becomes unavailable or rate-limited

1 billion free tokens monthly

Substantial quota for personal experimentation and testing

Simple setup

Drop-in proxy requiring minimal configuration changes to existing code

Pros & cons

Advantages

No cost for personal projects and experimentation
Access to multiple models and providers through a single interface
Familiar OpenAI API format reduces learning curve
Generous monthly token allowance
Automatic redundancy helps prevent service interruptions

Limitations

Not intended for production or commercial use
Reliability depends on aggregated free-tier services, which may have varying uptime
Rate limits and quotas from underlying providers may apply
No formal support or service level agreement

Use cases

Building and testing chatbot prototypes before committing to paid API services

Educational projects and learning how to integrate LLMs into applications

Rapid prototyping of AI features for personal tools and side projects

Experimenting with different models and prompting techniques without cost

Development and debugging before deploying to production infrastructure

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Pricing

Free

1 billion tokens per month, access to multiple AI providers, automatic failover, OpenAI API compatibility

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Try Free LLM API free

Free plan available
No credit card