Fireworks serverless decommissions DeepSeek V4, GLM 5.2 and Kimi K2 models on Sept 25

Several older Serverless models will be decommissioned on September 25, 2026 to better serve newer, higher-performance replacements. This applies only to serverless endpoints, including Fast and US-only Serverless endpoints for models that have those variants. Dedicated deployments are unaffected.

Action required

If you use any of the models below on serverless, migrate to a recommended replacement before September 25, 2026. After that date, they will no longer be available via serverless endpoints.

Recommended migrations

• DeepSeek V4 Flash (0731) — migrate to DeepSeek V4.1 Flash
• DeepSeek V4 Pro (0813) — migrate to DeepSeek V4.1 Flash
• DeepSeek V4 Flash Vision Exp — migrate to DeepSeek V4.1 Flash
• GLM 5.2 — migrate to GLM 5.3
• 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

On official benchmarks, DeepSeek V4.1 Flash outperforms DeepSeek V4 Pro (0813). DeepSeek V4.1 Flash is also multimodal, with the same vision capability as DeepSeek V4 Flash Vision Exp.

If you want to switch to a dedicated deployment, see the Serverless model list and the on-demand deployment quickstart.