Providers with a Genuine Free API Tier
Several major providers offer a free usage tier for their API, typically with rate limits (requests per minute or per day) and sometimes restricted to a less capable model than their paid tiers. See our Pricing directory for current specific limits by provider.
Open-Weight Models: Free If You Self-Host
Open-weight models like DeepSeek V3 and Llama 4 are free to download and run, though "free" here means no per-token cost, not zero cost overall — you still need computing infrastructure to actually run the model, which has its own real cost.
Real Limitations to Expect
Free API tiers typically come with strict rate limits unsuitable for production applications at scale, may not include access to a provider's most capable model, and can change or be reduced without much notice. Free tiers are best suited to testing, prototyping, and genuinely low-volume use, not production infrastructure you depend on.
Related Pages
Frequently Asked
Can I build a production app on a free API tier?
Generally not recommended — free tiers are typically rate-limited in ways that don't scale to real production traffic; budget for a paid tier once you're past initial testing and prototyping.
Is an open-weight model actually free?
The model weights are free to download, but running them requires computing infrastructure, which has its own real cost — 'free' here means no per-token API fee, not zero total cost.
Do free tiers get access to a provider's best model?
Often not — free tiers are frequently restricted to a smaller, less capable model, with the flagship model reserved for paid access.
Where can I compare specific provider pricing?
See our Pricing directory for current tier breakdowns by platform.