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AI inference infrastructure crosses into decacorn territory in 36 hours — May 26-27, 2026
Three inference companies leapt valuation tiers within a day and a half. Bloomberg reported May 27 that Fireworks AI is in talks at a $15 billion valuation led by Index Ventures, nearly quadrupling its $4 billion October 2025 mark. PYMNTS reported Baseten is raising $1 billion at an $11 billion post-money valuation, more than doubling its $5 billion price from three months ago, with annualized revenue tripling to $600 million in a single quarter. The New York Times DealBook confirmed May 26 that OpenRouter closed a $113 million round led by CapitalG at a $1.3 billion valuation, with weekly token volume up from 5T to 25T over six months. This extends Edition #33's Modal-Hark-Exa-Turbopuffer unicorn wave one tier higher.
So what
The application-layer story keeps absorbing the headlines while capital is repricing the inference layer underneath. For any growth company whose product economics depend on third-party inference, this is the window to lock in multi-year terms before pricing power consolidates further. Audit whether your stack is exposed to a single inference provider, and run a procurement check on at least one alternative routing layer this quarter.
Confidence: Established fact — Bloomberg, PYMNTS, and NYT DealBook primary reporting; talks confirmed by named sources, term sheets not yet public.
Go deeper Primary source (Bloomberg on Fireworks) · Curated (Latent Space / AINews)
