---
title: "GET /experimental/eval-runs/{id}/stats"
method: GET
path: "/experimental/eval-runs/{id}/stats"
tags: ["Evals"]
---

# GET /experimental/eval-runs/{id}/stats

`GET /experimental/eval-runs/{id}/stats`

Returns aggregated stats per (scenario × variant) group for an eval run. Every numeric quantity carries the full distribution suite — Min, Q1, Median, Mean, Q3, Max, StdDev — never bare means.

## Path parameters

- `id` string, uuid, required

## Response `200`

Default Response

- object
  - `links` object, required
    - `self` string, uri, required
  - `data` object, required
    - `id` string, uuid, required
    - `type` 'eval-run-stats', required
    - `attributes` object, required
      - `groups` object[], required
        - `scenarioId` string, uuid, required
        - `variant` string, required
        - `path` string
        - `shortDescription` string
        - `repeatCount` number, required
        - `recipe` object, required
          - `durationMs` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `agentDurationMs` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `costUsd` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `inputTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `outputTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `cacheReadTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `cacheCreationTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `turns` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `score` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `metricsMissing` number, required
        - `perTurn` object
          - `turns` object, required
            - `durationMs` object, required
              - …
            - `tokensPerTurn` object, required
              - …
            - `cachedTokensPerTurn` object, required
              - …
          - `tools` object, required
            - `perTool` object[], required
              - …
            - `allTools` object, required
              - …
          - `agentLogUnavailable` number, required
        - `scorer` object
          - `totalTimeMs` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `scorerTaskTimeMs` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `costUsd` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `inputTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `outputTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `cacheReadTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `cacheCreationTokens` object, required
            - `count` number, required
            - `missingCount` number, required
            - `min` number, required
            - `q1` number, required
            - `median` number, required
            - `mean` number, required
            - `q3` number, required
            - `max` number, required
            - `stdDev` number, required
          - `metricsMissing` number, required

## Other responses

- `404` — Not Found
- `500` — Internal Server Error

## Changes

- **2026-09-01** `756235b720be` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/tessl/apis/tessl-api/changes/experimental/eval-runs/:id/stats/get.md)

---

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