Baseten

Baseten introduced the Frontier Gateway, a managed API gateway built on top of Baseten Dedicated Inference, enabling AI labs to launch production-grade, multi-tenant inference APIs without building or buying separate gateway infrastructure. The Frontier Gateway lets labs serve Baseten-hosted models under their own doma The launch reflects Baseten's thesis that the AI frontier is now an irregular "capability silhouette" requiring specialization across modalities and tasks. The barrier to training frontier-quality models has collapsed, creating a Cambrian explosion of new model labs focused on image, video, speech, code, reasoning, RL

Baseten launched "Baseten for Model Labs," a platform designed to help closed-weight model labs distribute and monetize their models. The offering expands on the Frontier Gateway introduced May 6, with labs like Poolside, Subconscious, Trajectory, and WRITER already leveraging the gateway to serve their models. The pla The announcement details a new distribution channel where labs can list models on the Baseten Model Library, making them discoverable alongside open-source alternatives. Baseten handles infrastructure and operational complexity including billing, remittance, API key management, compliance authentication, authorization,

Baseten announced day-0 support for Inkling, Thinking Machines Lab's new open-weight model, on its Model APIs and Dedicated Inference platform. Inkling is a 975B-parameter mixture-of-experts autoregressive transformer with 41B active parameters and a 1M-token context window, pretrained on 45 trillion tokens across text Because Thinking Machines Lab released the full weights, developers can fine-tune Inkling on Tinker or deploy it via Baseten; the company credited the Inferact team for supporting Inkling in vLLM and for enabling day-0 vLLM integration with the Baseten Inference Stack, with further performance optimizations planned.

According to a Value Add VC blog post dated June 30, 2026, Baseten is reportedly raising a $1.5 billion Series F at a $13 billion valuation, up from $5 billion in January 2026, with annualized revenue run-rate reaching approximately $600 million by March 2026 (up roughly 1,900% year-over-year). The piece attributes the The same blog post highlights a reported July 2026 product launch called Baseten for Model Labs, which the article describes as helping closed-weight AI labs such as Poolside and WRITER monetize models through a feature Baseten calls Frontier Gateway. This product claim is not corroborated by an official Baseten source

According to AI Data Insider, Baseten announced what it called the fastest API yet for GLM-5.2, positioning the offering as a performance-focused inference endpoint for the GLM model family on its infrastructure platform. The article frames the release as part of Baseten's broader push to compete on inference latency a The excerpt emphasizes Baseten's role as an AI infrastructure startup optimizing serving for frontier-scale models rather than developing its own foundation models. Specific benchmark numbers, pricing, or technical implementation details for the GLM-5.2 API were not included in the supplied excerpt.

Blackbird published an investment note announcing it is deepening its partnership with Baseten by participating in the company's $1.5 billion Series F, which it describes as Blackbird's largest investment ever. The round is led by Altimeter Capital, Conviction, and Spark Capital, with participation from Sands Capital, The note highlights Baseten's Multi-Cloud Management layer that pools GPU capacity across major providers and reports more than a billion inference calls per day, naming customers such as Cursor, Abridge, OpenEvidence, Harvey, Clay, and Notion as deployment partners on the platform.

Baseten announces $1.5B Series F, led by Altimeter Capital, Conviction, and Spark Capital, co-led by Sands Capital and Wellington Management.

Baseten is closing a $1.5 billion funding round at a valuation of up to $13 billion, roughly a 160% jump from its $5 billion Series E just five months earlier in January 2026. The split-priced deal is co-led by Spark Capital, Altimeter Capital, Sands Capital, Wellington Management, and Conviction, with some investors e The raise reflects surging demand for lower-cost AI inference: Baseten's annualized revenue run rate has grown from roughly $200 million to about $600 million as customers shift workloads onto open-source models, with named customers including Cursor, Mercor, and OpenEvidence reporting inference costs near 30% of propr