reasoning-models
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Nous Research
Nous Research is an open-source AI lab founded in 2023 that builds world-class open-weight language models - most notably its Hermes family - and decentralized infrastructure for training them. Its Psyche network coordinates heterogeneous GPUs across the internet via the Solana blockchain, offering a community-driven, transparent alternative to closed labs like OpenAI. Backed by Paradigm and others, the company positions open, unrestricted models as a counterweight to centralized AI.
Zyphra
Zyphra is a superintelligence research and product company building efficient, open foundation models and a full-stack AI cloud. Best known for its SSM-hybrid Zamba models, the ZAYA1 reasoning family trained entirely on AMD hardware, and the Zonos text-to-speech system, Zyphra argues that frontier intelligence should run cheaply, locally, and outside the walled gardens of a handful of labs. In June 2025 it raised a $100M Series A at a $1B valuation led by Jaan Tallinn.
Imbue
Imbue is a San Francisco AI research lab building agents that can reason and code. Founded in 2021 as Generally Intelligent and renamed in 2023, the company is led by CEO Kanjun Qiu and CTO Josh Albrecht. After a $200M Series B that valued it above $1B, Imbue is focused on practical agent tools - most visibly Sculptor, a UI for running parallel coding agents safely in containers - guided by a mission to keep humans in control of powerful AI.
Actively AI
Actively AI is a New York-based enterprise software company building Intelligence-Led Revenue: custom reasoning models and Per-Account AI agents that work 24/7 to research accounts, identify high-value opportunities, and guide go-to-market teams on the next best move. Founded in 2022 by Stanford AI researchers Mihir Garimella and Anshul Gupta, it pitches a sharper alternative to the 'spray and pray' automation of earlier AI sales tools, and counts Samsara, Ramp, Ironclad, Attentive, and Verkada among its customers.