METR's Anthropic AI capabilities audit
- METR published an assessment on November 5, 2026 finding Anthropic's benchmark scores grew at roughly 1.9x the pre-October 2025 rate, attributing about 80% of that to Anthropic's own AI use in R&D.
- Anthropic exercised contractual rights to redact most of the evidence METR found most informative, including pipeline speedup data, and canceled a planned compute audit.
- Ryan Greenblatt and Ajeya Cotra called it a major update toward superintelligence within 1 to 2 years; Miles Brundage argued Congress needs near-immediate enforcement timelines and separately that OpenAI and Anthropic lack a large or sustainable lead over other developers.
The finding that AI systems are materially accelerating their own development compresses the timeline available for governance responses. The redaction of key evidence limits independent verification of how fast capabilities are advancing.