OpenAI Evals API

The Evals API allows you to programmatically configure and run evaluations to test model outputs against your expectations. Evaluations ensure model responses meet style and content criteria you specify, and are essential for building reliable LLM applications, especially when upgrading or trying new models.

Operations 12

GET /evals List evaluations for a project #
POST /evals Create the structure of an evaluation that can be used to test a model's… #
GET /evals/{eval_id} Get an evaluation by ID #
POST /evals/{eval_id} Update certain properties of an evaluation #
DELETE /evals/{eval_id} Delete an evaluation #
GET /evals/{eval_id}/runs Get a list of runs for an evaluation #
POST /evals/{eval_id}/runs Kicks off a new run for a given evaluation, specifying the data source, and… #
GET /evals/{eval_id}/runs/{run_id} Get an evaluation run by ID #
POST /evals/{eval_id}/runs/{run_id} Cancel an ongoing evaluation run #
DELETE /evals/{eval_id}/runs/{run_id} Delete an eval run #
GET /evals/{eval_id}/runs/{run_id}/output_items Get a list of output items for an evaluation run #
GET /evals/{eval_id}/runs/{run_id}/output_items/{output_item_id} Get an evaluation run output item by ID #

Documentation

📖
Documentation
https://platform.openai.com/docs/api-reference/evals
📖
Documentation
https://platform.openai.com/docs/guides/evals
📖
Documentation
https://platform.openai.com/docs/assistants/overview
📖
Documentation
https://platform.openai.com/docs/api-reference/assistants
📖
Documentation
https://platform.openai.com/docs/guides/text-to-speech
📖
Documentation
https://platform.openai.com/docs/api-reference/audio
📖
Documentation
https://platform.openai.com/docs/guides/speech-to-text
📖
Documentation
https://developers.openai.com/api/docs/guides/audio/
📖
Documentation
https://developers.openai.com/api/docs/guides/voice-agents/
📖
Documentation
https://platform.openai.com/docs/api-reference/chat
📖
Documentation
https://platform.openai.com/docs/guides/embeddings
📖
Documentation
https://platform.openai.com/docs/api-reference/embeddings
📖
Documentation
https://platform.openai.com/docs/api-reference/files
📖
Documentation
https://platform.openai.com/docs/guides/fine-tuning
📖
Documentation
https://platform.openai.com/docs/api-reference/fine-tuning
📖
Documentation
https://platform.openai.com/docs/guides/images
📖
Documentation
https://platform.openai.com/docs/api-reference/images
📖
Documentation
https://platform.openai.com/docs/guides/image-generation
📖
Documentation
https://platform.openai.com/docs/guides/images-vision
📖
Documentation
https://platform.openai.com/docs/models
📖
Documentation
https://platform.openai.com/docs/api-reference/models
📖
Documentation
https://platform.openai.com/docs/assistants/how-it-works/managing-threads-and-messages
📖
Documentation
https://platform.openai.com/docs/api-reference/threads
📖
Documentation
https://platform.openai.com/docs/api-reference/completions

Specifications

Schemas & Data

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OpenAPI Specification

openai-evals-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: OpenAI Evals API
  description: The OpenAI REST API. Please see https://platform.openai.com/docs/api-reference for more details.
  version: 2.3.0
  termsOfService: https://openai.com/policies/terms-of-use
  contact:
    name: OpenAI Support
    url: https://help.openai.com/
  license:
    name: MIT
    url: https://github.com/openai/openai-openapi/blob/master/LICENSE
servers:
- url: https://api.openai.com/v1
security:
- ApiKeyAuth: []
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/openai/refs/heads/main/openapi/openai-evals-api-openapi.yml