September 16, 2026 · Fireworks AI
GLM 5.3 available for LoRA on Serverless Training, with up to 262K context
GLM 5.3 is now available for LoRA workloads on the shared Serverless Training pool, with up to 262K context. There's no capacity to reserve and you pay per token. Move the same loop to Dedicated Training for your most demanding workloads.
See the Serverless Training guide for setup and the training model catalog for current availability.
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