concavity.ai

Trust Infrastructure for Long Context Reasoning

Founded by researchers from Caltech, Columbia University, and Amazon

We're building Superlinear, an open-source subquadratic attention model that runs locally at 109 tokens/sec with 1M context, and Full Context Reasoning (FCR), a reasoning runtime achieving 4× the accuracy of standard RAG on multi-document tasks.

Early research release. Models and inference engine available.