Update
METR: Anthropic's AI Models Accelerated Progress
METR, an independent model-evaluation group, estimates that Anthropic's AI models improved on tasks with clear success criteria roughly twice as fast in October 2026 compared to the period from March 2024 to October 2025. METR attributes most of this acceleration to AI assistance, though much of the evidence behind this judgment is redacted. The analysis covers more than the products customers could access, including snapshots of unreleased models.