---
title: "Evaluate Model"
method: POST
path: "/evaluations/evaluate_model"
tags: ["Evaluations"]
---

# Evaluate Model

`POST /evaluations/evaluate_model`

## Request

- Base URL: `https://trace.wandb.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://trace.wandb.ai/evaluations/evaluate_model`
- Auth: none declared

## Request body

- EvaluateModelReq
  - `project_id` string, required
  - `evaluation_ref` string, required
  - `model_ref` string, required
  - `wb_user_id` string, nullable: Do not set directly. Server will automatically populate this field.

## Response `200`

Successful Response

- EvaluateModelRes
  - `call_id` string, required

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-16** `dd89fadfe4e4`: 3 info
  - the endpoint scheme security `HTTPBasic` was removed from the API
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status
- **2026-01-07** `d6e39f7c717d`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/wandb/apis/weights-biases-weave-stainless-api/changes/evaluations/evaluate_model/post.md)

---

[API](https://skmtc.dev/wandb/apis/weights-biases-weave-stainless-api.md) - [All operations](https://skmtc.dev/wandb/apis/weights-biases-weave-stainless-api/llms.txt) - [OpenAPI document](https://skmtc.dev/wandb/apis/weights-biases-weave-stainless-api/revisions/f7643c49bf2e?raw)