API Overview
Welcome to the Synthetic API docs!
Synthetic provides an OpenAI-compatible API and Anthropic-compatible API for all models we support.
Contributing
This is a living document, and we're working on making it easy for users like you to contribute.
Until then, if you have any feedback or suggestions, let us know via Discord or email.
API Key
Your API Key:
Supported Models
For a list of supported models, see the Models page.
Supported Endpoints
OpenAI-compatible endpoints:
Base Url:
/models- List all always-on models and any recently used on-demand models./chat/completions- Chat-based completions with conversation history/completions- Traditional text completions/embeddings- Transform text into vector embeddings.
Anthropic-compatible endpoints:
Base Url:
/messages- Send and receive messages./messages/count_tokens- Count tokens in messages.
Synthetic endpoints:
/quotas- Check your current Subscription usage.
Rate Limits
Rate limits vary by subscription tier:
- Standard: 135 messages every 5 hours
- Pro: 1350 messages every 5 hours
- Usage Based: No rate limits
Subscriptions last longer!
Small requests with less than 2048 input and output tokens only count as 0.1 request.
For more details, see our Pricing page.
Getting Help
- Check out our Getting Started Guide
- Browse the API Reference
- Join our Discord Server!