GPT Sol 6.1 tops long-horizon benchmark at 50.45%, best open model at 11.86%

teortaxesTex · x · 2026-11-07

According to a cited benchmark update, GPT Sol 6.1 now uses the 12-hour time frame more consistently and tops the benchmark at 50.45%, at a higher cost than Opus 5.5. Open models lag considerably: the best open model, Kimi K3.1 Pro, scores only 11.86%. The poster notes this is another fresh task the frontier is already strong at.

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