Baseten secures $1.5bn in Series F funding for AI inference platform

California-based Baseten has raised $1.5bn successful a Series F circular to enactment its AI grooming and inference platform, which enables organisations to train, deploy, and service AI models astatine standard with a absorption connected show and outgo efficiency.

The backing circular included investments made crossed 2 tranches, astatine institution valuations of $13bn and $11bn respectively.

It was led by Altimeter Capital, Conviction, and Spark Capital, with Sands Capital and Wellington Management participating arsenic co-leads.

Other investors progressive see IVP, 01A, Greylock, Durable Capital Partners, Blackbird, Verified Capital, Battery Ventures, and D. E. Shaw Ventures, alongside existing shareholders.

Prior to this, successful January 2026, Baseten secured $300m successful a Series E circular led by anchor investors IVP, CapitalG, and Nvidia, valuing the institution astatine $5bn.

Baseten stated that the caller superior from Series F reflects ongoing request for inference capabilities astatine the exertion layer, arsenic closed root and unfastened root models progressively converge successful presumption of performance, cost, and customisation.

As AI-related economics evolve, Baseten reported that post-trained unfastened root models are providing high-level show astatine little costs.

According to the company, starring application-layer firms present dedicate 30% to 50% of exemplary expenditure to customised and post-trained models.

Baseten's level supports organisations pursuing a multi-model approach, including the usage of some frontier and tailored post-trained models for assorted workflows and usage cases.

The institution noted important enlargement successful its concern metrics, indicating that its gross has accrued by astir 20 times year-over-year.

Its level is present processing implicit 1 cardinal inference calls each day, operating crossed 87 clusters worldwide and spanning 18 unreality providers. Baseten described its multi-cloud infrastructure arsenic a cardinal constituent of its offering.

Baseten CEO and co-founder Tuhin Srivastava said: "The aboriginal of AI volition beryllium built connected millions of specialised models, and the companies gathering the champion ones cognize that post-training has go existential. It's however they physique quality they own, connected information that's theirs, optimised for the customers they serve.

"The companies closing this loop fastest are utilizing Baseten to physique a strategy that compounds successful worth implicit time. We're grateful to our investors for their condemnation that Baseten is wherever that aboriginal gets built, and to the squad and customers who've made america worthy of it."

The caller funds are acceptable to beryllium utilized for recruitment, computing resources, and advancing the company's endeavor strategies.