September 26, 2026 · Fireworks AIDeprecation
Serverless deprecation takes effect for DeepSeek V4, Kimi K2 and GLM 5.2 models
The serverless deprecation announced for September 25, 2026 is now in effect. The models below are no longer available on public serverless, including Fast and US-only serverless endpoints where those existed. Dedicated deployments are unaffected.
Recommended migrations
- DeepSeek V4 Pro (0813) — migrate to DeepSeek V4.1 Flash
- DeepSeek V4 Flash (0731) — migrate to DeepSeek V4.1 Flash
- DeepSeek V4 Flash Vision Exp — migrate to DeepSeek V4.1 Flash
- Muse Glimmer 30B — migrate to NVIDIA Nemotron 3.5 Lightning 30B A3B
- Kimi K2.6 — migrate to GLM 5.3 or Kimi K3
- Kimi K2.7 Code — migrate to GLM 5.3 or Kimi K3
- GLM 5.2, including GLM 5.2 Fast, GLM 5.2 Fast US, and GLM 5.2 US — migrate to GLM 5.3
Latest Fireworks AI platform changes
Public cookbook moves to fw-ai-external/cookbook, fireworks-training-cookbook on PyPI
Ultra-fast Serverless mode in Preview, with DeepSeek V4.1 Flash 1017 at 6-8x speed
DeepSeek V4 Flash (0731) removed from the shared Serverless Training pool
Rune 26B-A4B available on Serverless, returning probabilities for up to 256 questions
fireworks-ai 1.2.30 replaces TITO sidecar 502 errors with source-specific error codes