---
title: "Get Training Job Billing"
method: GET
path: "/felix/training-jobs/{job_id}/billing"
tags: ["felix"]
---

# Get Training Job Billing

`GET /felix/training-jobs/{job_id}/billing`

Get the billing outcome for a specific training job, by job ID.

Closes the API gap in ENG-6131: reports whether a job was billed and,
if so, for how much and how long, so a billing-correctness fix like
ENG-6068 can be verified live without direct database access. Read
visibility matches ``get_training_job`` and the other
``training-jobs/{job_id}`` read routes.

## Path parameters

- `job_id` string, required

## Response `200`

Successful Response

- TrainingJobBillingResponse — Per-job billing outcome, verifiable by ``training_job_id`` (ENG-6131).
  - `job_id` string, required
  - `status` string, required
  - `started_at` string, nullable — When the job was dispatched to Modal (spawn / queue time).
  - `compute_started_at` string, nullable — When the training container actually began executing (ENG-6068). Distinct from started_at. FAILED/CANCELLED jobs bill only when this is set, so a null value here explains why billed=false.
  - `completed_at` string, nullable
  - `billed` boolean, required — Whether a billing request row exists for this job.
  - `request_id` string, nullable — The requests.id row this job was billed against, if billed.
  - `charged_usd` string, nullable — Selling price actually charged for this job's GPU time.
  - `gpu_minutes` string, nullable — Billed GPU minutes, derived from the billed request's duration_ms.
  - `billed_at` string, nullable — When the billing request row was created.

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-24** `1cffaad2a921` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/pioneer/apis/brain-api/changes/felix/training-jobs/:job_id/billing/get.md)

---

[API](https://skmtc.dev/pioneer/apis/brain-api.md) · [All operations](https://skmtc.dev/pioneer/apis/brain-api/llms.txt) · [OpenAPI document](https://skmtc.dev/pioneer/apis/brain-api/revisions/1cffaad2a921?raw)