Nathan Lambert @natolambert

Congrats to Reflection folks -- it's hard to get the first model out, and we hope you can rapidly accelerate contributions to the ecosystem from here :) [引用 @reflection_ai]: Introducing Beam: a highly efficient agentic open model with 501B total parameters and 23B active. - Frontier reasoning efficiency - Advances the Western open frontier on coding & agentic tasks - Trained end-to-end from scratch Full weights release this month. Learn more about Beam: https://t.co/c3Qx2cpM8G

• Open-source AI reading list posted on Hacker News2026-09-14