METR audit says Anthropic may have crossed its own AI acceleration warning threshold
What happened
On 6 November 2026, The Decoder reported that an internal METR audit of Anthropic found its model capability growth rate has been about 1.9 times faster since October 2025, with AECI rising from roughly 15 points a year to 29, and that it may have crossed its own acceleration warning threshold as early as 15 July 2026. The report did not mention a response from Anthropic or specify the consequences of crossing the threshold.
Written by AI from the reports · updated 3 h ago
Timeline
Follow the reports to see the event from each side.
- The DecoderSelectedMETR finds Anthropic may have crossed its own AI acceleration warning threshold back in July
Nonprofit METR spent eleven weeks auditing Anthropic's internal research data and concluded that the pace of model development has roughly doubled, with about 80 percent of the speedup driven by AI-assisted research. Anthropic redacted the most informative evidence, though, which means the public has to rely on METR's judgment "much more than would be ideal."
Heat of this event
Not enough continuous observations yet to draw a trend.