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Fireworks AI POST /v1/accounts/{id}/reinforcementFineTuningJobs endpoint removal

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On October 1, 2026, Fireworks AI shut down the POST /v1/accounts/{id}/reinforcementFineTuningJobs endpoint. Following this change, calls to this endpoint fail. Fireworks AI stated that Managed Training "no longer accepts new RFT jobs" through the API.


Calls it hits

  • POST /v1/accounts/{id}/reinforcementFineTuningJobs

What to use instead of these calls

Run RL on the Training API instead.

In Fireworks AI's words

Managed Training no longer accepts new RFT jobs from the Fireworks UI, firectl, or the REST API.

Fireworks AI, Announcement

Facts

API
Fireworks AI api.fireworks.ai
Kind
Endpoint removal
Announced
October 1, 2026
Takes effect
October 1, 2026
Calls after that day
Fail
Source
Announcement
Last updated
Verified
, against Fireworks AI's own pages

Questions

When does this change take effect?

Calls to POST /v1/accounts/{id}/reinforcementFineTuningJobs on Fireworks AI stopped working on October 1, 2026.

What happens to calls after October 1, 2026?

They have failed since October 1, 2026.

How do I find the calls this hits in my code?

Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.


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You fixed this one by hand.

Okapi opens the pull request with the fix before the next breaking change reaches your code.

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