Welcome Beam: a 501B open model you can own, customize, and scale

Key sources

1. SOURCEOct 16, 10:23 PM · aws.amazon.com
2. SOURCE@reflection_ai · Oct 16, 8:01 PM · “available across platforms, with open weights under the Apache 2.0 license - in collaboration with an ecosystem of 40+ partners” · x.com
3. SUPPORT@ben_burtenshaw · Oct 16, 8:03 PM · “501B MoE, 23B active 1M token context Built for coding + agents” · x.com
4. SUPPORT@mervenoyann · Oct 16, 8:13 PM · “token-efficient, frontier-scale model for your coding agents, comes with its own harness” · x.com
5. SOURCEhuggingnews · huggingnews.com
6. SOURCEOct 16, 8:23 PM · marketbrief.now
7. SOURCE@brandondamos · Oct 16, 8:14 PM · “stable run on 10K GB300s that produced more than 100M rollouts across ~1M tasks” · x.com
8. SOURCE@nvidiaai · Oct 16, 8:39 PM · “trained on NVIDIA GB300 NVL72 and delivers over 70K tokens/sec/GPU on Blackwell Ultra” · x.com