Reflection AI Releases Beam Model Weights Under Apache 2.0
New announcements are quiet today. We review the most notable release from recent days.
Reflection AI Open-Sources Beam Under Apache 2.0
On October 16, 2026, Reflection AI released the model weights for its Beam reasoning system. The release uses the permissive Apache 2.0 license. Beam is tuned for coding and autonomous agent workflows. It supports a context window of up to 1 million tokens, allowing the model to analyze large code repositories in a single pass. Alongside the model, the team open-sourced Mirror CLI. This terminal harness runs parallel coding agents in separate Git worktrees. Reflection reports a score of 80.9 percent on the SWE-bench Verified evaluation benchmark.
What it means: The Apache 2.0 license allows engineers to build commercial software without restrictive terms. This gives teams an alternative to proprietary APIs and heavily restricted open releases.
Example: A software team could run Beam to review an entire legacy codebase offline without sending proprietary files to external vendors.
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