OpenAI's GPT-6 Astra topped the Epoch Capabilities Index with a composite score of 166, outranking all 249 models tracked by Epoch AI and surpassing GPT-5.5 Pro at 162 and Anthropic's Claude Fable 5.1…
Epoch and METR released MirrorCode, a benchmark for long-horizon programming tasks, finding that AI models like Opus 4.7 solved a task in 14 hours for $251 that would take a human 2-17 weeks. Across 2…
Closed-source software no longer protects design secrets because AI can now reconstruct programs by observing their behavior, according to a June test by Epoch AI and METR called MirrorCode. The best …
Epoch AI and METR released MirrorCode, a benchmark testing AI models on reimplementing entire programs from scratch. Claude Opus 4.7 achieved a 56% score, solving a bioinformatics toolkit in 14 hours …
Epoch AI's new MirrorCode benchmark tests AI models on recreating complete programs without access to original code. Claude Opus 4.7 leads with a 56 percent solve rate, rebuilding a 16,000-line toolki…