Fireworks AI announces a Series D and $1B ARR
Fireworks AI's site banner now announces a Series D round alongside a $1B annual recurring revenue milestone, four years after the company was founded in 2022.
Series C reported in 2025 at a $4B+ valuation; no public ARR figure.
Series D announced with a stated $1B ARR milestone.
Fireworks AI is running a site-wide banner announcing its Series D round together with a $1B ARR milestone. The round amount and valuation are not stated on the pricing surface itself.
The ARR figure is notable for a pure-usage inference platform: Fireworks charges no subscription at all, so the entire run-rate is metered consumption — per-token serverless inference, per-GPU-second on-demand deployments, per-1M-token fine-tuning and per-1M-token embeddings — drawn against prepaid credits.
Serverless inference is now documented as three named serving paths — Standard (default), Priority (higher reliability under peak traffic, set via service_tier) and Fast (100+ tokens/sec, selected by model ID) — replacing the earlier "Turbo + Priority" framing, with per-model input / cached-input / output rates published for each. Fireworks also shipped Fire Pass, an experimental promo-code pass that removes per-token charges on included open-weight models for personal agentic coding, and the site banner now announces a Series D and $1B ARR. Headline rate card (H100/H200 $7.00/hr, B200 $10.00/hr, B300 $12.00/hr, fine-tuning from $0.50 per 1M training tokens, batch at 50%) is unchanged.