> ## Documentation Index
> Fetch the complete documentation index at: https://docs.viviai.cc/llms.txt
> Use this file to discover all available pages before exploring further.

# Why am I getting 404 or model not found?

Check the model ID and request path:

| Protocol | Request path |
| - | - |
| OpenAI Chat | `/v1/chat/completions` |
| Gemini | `/v1beta/models/MODEL:generateContent` |
| Anthropic | `/v1/messages` |

Replace `MODEL` with a real model ID. Check whether your app appends the path automatically to avoid duplicate segments such as `/v1/v1`.

See [API URL formats](https://docs.viviai.cc/en/help/api-format.md) and the [Model list](https://docs.viviai.cc/en/pricing.md#model-list).


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