Six Serverless models deprecated, to be decommissioned on November 7, 2026

Several Serverless models will be decommissioned on November 7, 2026 to better serve newer, higher-performance replacements. This applies only to serverless inference. Dedicated deployments and Reserved Throughput are unaffected.

Action required

If you use any of the models below on serverless, migrate to a recommended replacement before November 7, 2026. After that date, they will no longer be available via serverless endpoints.

Recommended migrations

• GPT OSS 120B — move to a dedicated deployment of GPT OSS 120B
• Inkling — migrate to Muse Spark Open (US endpoint, 50% US regional premium waived)
• NVIDIA Nemotron 3 Ultra — move to a dedicated deployment of Nemotron Super VL
• NVIDIA Nemotron 3.5 Lightning 30B A3B — move to a dedicated deployment of Nemotron Super VL
• MiniMax M3 (US endpoint only) — migrate to DeepSeek V4.1 Flash 1017 (US endpoint). The global MiniMax M3 endpoint remains available.
• GLM 5.3 Flash (US endpoint only) — migrate to DeepSeek V4.1 Flash 1017 (US endpoint). The global GLM 5.3 Flash endpoint remains available.

GLM 5.3 and DeepSeek V4.1 Flash are not affected and remain available on serverless.

New models on Serverless

• DeepSeek V4.1 Flash 1017: accounts/fireworks/models/deepseek-v4p1-flash-1017
• DeepSeek V4.1 Flash 1017 (US endpoint): accounts/fireworks/routers/deepseek-v4p1-flash-1017-us (US-only Serverless)
• Muse Spark Open (US endpoint, 50% US regional premium waived): accounts/fireworks/models/muse-spark-open
• MiniMax M3.1: coming to serverless after its open-source release, expected Friday, October 23

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