Fireworks AI
Inference and fine-tuning infrastructure for developers, serving open and closed models behind one API.
Press release · 9 Sep 2026Products
Selected offerings — the AI products recorded here, not the vendor's full catalogue.
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Hosted API for serving and fine-tuning open-weight models, billed per token.
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Drop-in API endpoint that routes each request across models to trade cost against quality.
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Serving for frontier open models and for a customer's own post-trained versions of them, on an inference engine tuned at each layer.
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Training and retraining of custom models on Fireworks, offered across several training surfaces and served on the same platform.
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Real-time and batch speech-to-text on Fireworks, aimed at voice workflows that need low-latency transcription at scale.
Closest alternatives 3
Similar products 108
Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.
Sources
- Total funding
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Third-party database · 27 Aug 2026
stockanalysis.com's own cumulative tally across its recorded funding rounds for this company, read 2026-08-27. The individual citation attached to this figure on the page is for the LATEST round only (Announcing our Series D and $1B ARR) and does not itself state the cumulative total — flagged and excluded rather than treated as verifying the sum.
- Valuation
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Announcing our Series D and $1B ARR, Fireworks AI, 2026-07-15. post-money valuation of the round dated 2026-07-15. Read via stockanalysis.com's citation for this figure on 2026-08-27.
- Employees
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AI Inference Startup Fireworks AI Is Valued at $4 Billion in Funding Round, The Wall Street Journal, 2025-10-28. Read via stockanalysis.com's citation for this figure on 2026-08-27.
- Founded
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Wikipedia infobox "founded" field, read 2026-08-27.
- Description
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Official documentation · 6 Sep 2026
The site's own framing is "Foundational Infrastructure for Specialized Intelligence" and "A drop-in replacement for closed-model APIs" — training, tuning and inference, not app development.
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