---
title: "Changes to Create evaluator"
method: POST
path: "/api/v1/platform/evaluators"
---

# Changes to Create evaluator

`POST /api/v1/platform/evaluators`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 77 revisions.

- **2026-10-20** `44d7fe006ac9`: 1 warning, 1 info
- **2026-10-16** `ec156df8da3a`: 1 warning, 1 info
- **2026-10-16** `1a8ee9358d81`: 1 info

## Changes

- **2026-10-20** `44d7fe006ac9`: 1 warning, 1 info
  - added the new `decision_model` enum value to the `evaluator/type` response property for the response status `201`
  - added the new `decision_model` enum value to the request property `type`
- **2026-10-16** `ec156df8da3a`: 1 warning, 1 info
  - added the new `trajectory` enum value to the `evaluator/code_evaluator/code_evaluator_input/anyOf[subschema #1]/allOf[#/components/schemas/evaluators.CodeEvaluatorInput]/` response property for the response status `201`
  - added the new `trajectory` enum value to the request property `code_evaluator/code_evaluator_input/anyOf[subschema #1]/allOf[#/components/schemas/evaluators.CodeEvaluatorInput]/`
- **2026-10-16** `1a8ee9358d81`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/langchain-ai/apis/langsmith/docs/api/v1/platform/evaluators/post.md) - [API](https://skmtc.dev/langchain-ai/apis/langsmith.md) - [Page](https://skmtc.dev/langchain-ai/apis/langsmith/changes/api/v1/platform/evaluators/post)