Fireworks AI released Ember-1 September 23, 2026 — Kimi K3 post-trained to reason in fewer tokens at identical pricing (15 per M tokens). 35-50% shorter reasoning across seven benchmarks.
Customer A/B: Kimi K3 49.3K output tokens vs Ember-1 29.9K; scores 0.751 vs 0.753. At 1,000 tasks/day, output cost ~450/day (Ember-1) — ~$8,700/month savings on same rate card.