Fireworks, Baseten and Together AI raised $3.8B in four weeks. The funding proves inference is a control point, not that enterprise AI budgets have moved off frontier models.

Fireworks once relied heavily on revenue from coding startup Cursor, but has diversified in the past year as more companies reach for lower-cost AI models.

Fireworks AI reaches a $17.5B valuation as enterprises flock to cheaper AI inference solutions, with revenue more than doubling in six months.