serverless-inference
(3)
Featherless AI
Featherless AI is a serverless inference platform that gives developers and enterprises a single API key to run more than 40,000 open-weight AI models across language, vision, audio and multimodal tasks - without provisioning or managing any GPUs. Founded in 2023 by the team behind the RWKV open-source model architecture, the company sells flat-rate subscriptions with unlimited tokens and positions itself as a neutral infrastructure layer for open-source AI, independent of the major cloud hyperscalers. It raised a $20M Series A in April 2026 co-led by AMD Ventures and Airbus Ventures, bringing total funding to about $25M.
Parasail
Parasail is a San Mateo-based AI inference cloud that lets developers run open-source and custom models without buying or committing to their own GPUs. Instead of owning chips, it orchestrates rented GPU capacity across roughly 40 data centers in 15 countries plus its own clusters, automatically routing each workload to the cheapest, fastest hardware. Founded in 2023 by Mike Henry (ex-Groq CPO, Mythic founder) and Tim Harris (Swift Navigation founder), the company processes on the order of 500 billion tokens a day and pitches a token-based economy - pay for output, not hardware.
Hyperbolic
Hyperbolic is an open-access AI cloud built for developers and researchers. It aggregates underutilized GPUs from data centers, mining farms and idle machines into an on-demand marketplace, and pairs that with serverless inference for state-of-the-art open-source models. The pitch is simple: fast, affordable access to compute and inference without sales calls or feature gates, at prices it says can run up to 75% below incumbents.