---
title: "Changes to Update evaluator"
method: PATCH
path: "/v1/platform/evaluators/{evaluator_id}"
---

# Changes to Update evaluator

`PATCH /v1/platform/evaluators/{evaluator_id}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 48 revisions.

- **2026-05-27** `a0acb3a6a101` — 1 info
- **2026-04-14** `e0b167760947` — 7 info
- **2026-04-13** `e86be67718ee` — 1 info

## Changes

- **2026-05-27** `a0acb3a6a101` — 1 info
  - added the optional property `evaluator/spend_usd` to the response with the `200` status
- **2026-04-14** `e0b167760947` — 7 info
  - added the new optional request property `llm_evaluator/num_few_shot_examples`
  - added the new optional request property `llm_evaluator/use_corrections_dataset`
  - added the optional property `evaluator/llm_evaluator/allOf[#/components/schemas/evaluators.LLMEvaluator]/num_few_shot_examples` to the response with the `200` status
  - added the optional property `evaluator/llm_evaluator/allOf[#/components/schemas/evaluators.LLMEvaluator]/use_corrections_dataset` to the response with the `200` status
  - added the optional property `evaluator/run_rules/items/corrections_dataset_id` to the response with the `200` status
  - added the optional property `evaluator/run_rules/items/num_few_shot_examples` to the response with the `200` status
  - added the optional property `evaluator/run_rules/items/use_corrections_dataset` to the response with the `200` status
- **2026-04-13** `e86be67718ee` — 1 info
  - endpoint added

---

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