GPT-5.5 Terminal-Bench Victory: Beats Claude Mythos Preview
GPT-5.5 Terminal-Bench 2.0 leader (82.7%) narrowly beats Claude Mythos Preview (82.0%). OpenAI reclaims agentic coding SOTA across 14 benchmarks. OpenAI's GPT-5.5 launches with a razor-thin victory over Anthropic's restricted Claude Mythos Preview, scoring 82.7% on Terminal-Bench 2.0—the
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