In the latest edition of his open artifacts survey, Nathan Lambert assesses how Zyphra, Cohere, and Poolside are widening the landscape of openly available AI models. The piece looks at recent contributions from each company and what they signal about the broader open ecosystem.
All three firms are pushing beyond the usual release patterns, adding new capabilities and model types that make the open field more varied. According to Lambert, the breadth of these artifacts matters because it gives developers and researchers more choice when building on open weights.
The post also explores the motivations behind releasing models openly. For these companies, open-sourcing is not just a technical decision but a strategic one, tied to community building, ecosystem influence, and long-term positioning. Lambert's assessment suggests that such releases are increasingly central to how these firms participate in the AI landscape.