> ## Documentation Index
> Fetch the complete documentation index at: https://wb-21fd5541-docs-sandboxes-integrations-placement.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# API error code 404 - Model not found

A **404** response from the W\&B Inference API means the server could not find the model or resource you asked for. The response body often includes a message such as **"The requested resource was not found"**, which usually indicates the model identifier in your request does not match any model available through the API.

## Why this happens

* **Incorrect model ID**: The model name or path in your request is misspelled or formatted incorrectly.
* **Model is not available on W\&B Inference**: Not all models hosted on other providers are available through the W\&B Inference API. The model you are requesting may not have been onboarded.
* **Using the wrong base URL**: If you are pointing at a different provider's endpoint but using a W\&B API key, the model ID will not resolve correctly.
* **Model was removed**: A model that was previously available may have been deprecated or removed.

## What you can do

1. **Check the model ID**
   * Verify the exact model identifier against [Available models](/inference/models).
   * Model IDs are case-sensitive and typically use the format `provider/model-name` (for example, `meta-llama/Llama-3.3-70B-Instruct`).

2. **Confirm the base URL**
   * The W\&B Inference base URL is `https://api.inference.wandb.ai/v1`. Ensure your client uses this host and not the Multi-tenant Cloud API host (`https://api.wandb.ai`) or another provider's endpoint. For usage tracking, some clients also send the optional `OpenAI-Project` header set to `team/project` as shown in the [list models API reference](/inference/api-reference/list-models).

3. **Request access to a new model**
   * If the model you need is not currently supported, contact [W\&B support](mailto:support@wandb.com) to request it be added.

For more information, see [Serverless Inference](/inference) and the [list models API reference](/inference/api-reference/list-models).

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<Badge stroke shape="pill" color="orange" size="md">[Server Errors](/support/inference/tags/server-errors)</Badge>