# Models

## List Available Models

> Returns a list of 300+ available AI models with pricing, capabilities, context lengths, and provider information. No authentication required.

```json
{"openapi":"3.1.0","info":{"title":"FastRouter API Reference","version":"1.0.0"},"tags":[{"name":"Models","description":"List and retrieve available AI models with pricing and capability information."}],"servers":[{"url":"https://api.fastrouter.ai","description":"Production API"}],"security":[],"paths":{"/api/v1/models":{"get":{"operationId":"listModels","tags":["Models"],"summary":"List Available Models","description":"Returns a list of 300+ available AI models with pricing, capabilities, context lengths, and provider information. No authentication required.","parameters":[],"responses":{"200":{"description":"List of all available models","content":{"application/json":{"schema":{"type":"object","properties":{"object":{"type":"string","description":"Object type, always 'list'"},"data":{"type":"array","description":"Array of model objects","items":{"type":"object","properties":{"id":{"type":"string","description":"Model ID in provider/model format"},"name":{"type":"string","description":"Human-readable model name"},"object":{"type":"string","description":"Object type"},"created":{"type":"integer","description":"Unix timestamp of model creation/addition"},"owned_by":{"type":"string","description":"Provider/owner of the model"},"context_length":{"type":"integer","description":"Maximum context window size in tokens"},"max_completion_tokens":{"type":"integer","description":"Maximum tokens that can be generated"},"pricing":{"type":"object","description":"Pricing information","properties":{"prompt":{"type":"string","description":"Cost per prompt token (in USD)"},"completion":{"type":"string","description":"Cost per completion token (in USD)"},"image":{"type":"string","description":"Cost per image (if applicable)"},"request":{"type":"string","description":"Cost per request (if applicable)"}}},"architecture":{"type":"object","description":"Model architecture details","properties":{"modality":{"type":"string","description":"Supported modalities (text, image, audio, video, etc.)"},"tokenizer":{"type":"string","description":"Tokenizer used by the model"},"instruct_type":{"type":"string","description":"Instruction format type"}}},"top_provider":{"type":"object","description":"Information about the model's provider"},"per_request_limits":{"type":"object","description":"Request limits and constraints"}}}}}}}}},"429":{"$ref":"#/components/responses/RateLimitError"},"500":{"description":"Internal Server Error"}}}}},"components":{"responses":{"RateLimitError":{"description":"Rate Limited - You have exceeded your request limits (TPM/RPM). Slow down or increase your limits.","content":{"application/json":{"schema":{"type":"object","properties":{"error":{"type":"object","properties":{"message":{"type":"string"},"type":{"type":"string"},"code":{"type":"string"},"status":{"type":"integer"}}}}}}}}}}}
```