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The gap between open and closed models has been narrowing.
True if an open-weights model scores within 2% of the leading closed model on MMLU, HumanEval, and GPQA.
Beam: first major Western frontier-class open-weight model with 501B parameters, explicitly claiming GLM-5.2 benchmark parity
Public weights due October 2026 within the 175-day resolution window — timing aligns with criterion
DeepSeek V4.1-Flash demonstrates open-weight frontier-class reasoning in production
175 days remaining provides runway for open-weight models to close the remaining gap
Beam claims parity with GLM-5.2, not with GPT-6 Astra (89.6% BenchLM) — closed frontier ceiling continues advancing beyond open-weight models
GPT-6 Astra and Gemini 4 Argon safety-gating means most capable models explicitly not open-weight — frontier gap maintained by design
HIGH time pressure: upward moves require direct evidence of imminent open-source frontier match — Beam's parity claim targets secondary model
Cumulative +59pt drift from 28% initial is extreme — ceiling discipline mandatory
Third Circuit copyright ruling on AI training data (prior cycles) may chill open-source model training on proprietary datasets