There’s been a lot of speculation about where we stand on open-weights models. We’ve outlined our views in full here: anthropic.com/news/position-…

such a stupid take from a "member of technical staff" @AnthropicAI you think he knows that Typescript, the language most of their stack is built in, was created by Microsoft and is open source... not to mention Microsoft are one of the biggest contributors to open source now

On ARC-AGI-3, an evaluation where AI models must solve novel problems, Opus 5’s score is three times as high as the next best model.

i can't wait for the “99% of people are using Opus 5 wrong” articles from people who’ve been using it for 12 minutes

For my first post, I’m sharing a letter @NVIDIA signed on why open models matter. AI will transform every industry, power every company, and be built by every country. Open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty. The world needs both frontier closed models and frontier open models. images.nvidia.com/pdf/Open-W…

Opus 5 is currently being served on Claude if you select Opus 4.8

we're launching BUZZ! a new groupchat platform for teams of people and agents of all sizes, built to reduce our dependency on slack and github. model-agnostic, decentralized, self-sovereign, and open source. 🐝 buzz.xyz