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Benchmark

Epoch AI evaluates GPT-5 (medium)

Mystery Game Puzzles 15.0%

Type
BENCHMARK_RESULT
Detection
benchmark
Confidence
high
Status

Primary source

Epoch AI Benchmarking Hub · epoch.ai/benchmarks ↗

Independent benchmark runs (GPQA Diamond, SWE-bench Verified, FrontierMath, ...) plus externally reported leaderboards and the Epoch Capabilities Index (ECI).