New Models
Beam
Reflection AI announces Beam, a 501B Western open-weight model
Reflection AI came out of semi-stealth with Beam: 501B parameters with 23B active, trained from scratch in the West, with Apache 2.0 weights promised this month. Reflection claims 80.9% on SWE-bench Verified, admits Kimi K3 is ahead on raw capability, and pitches 3 to 4x less inference compute than GLM 5.2.
501B total parameters23B active parameters80.9% SWE-bench Verified (claimed)