Fireworks AI makes its Training API generally available for custom model training

Fireworks AI announced general availability of its Training API, which connects a customer's Python training loop to managed distributed training and rollout infrastructure.

Serverless training bills per token for LoRA adapters, while Dedicated training provides per-GPU-hour capacity for full-parameter runs and larger models.

The post cites customer results, including Heidi moving a clinical scribe from proof of concept to production in four weeks with 3.5x lower latency.