Artificial intelligence · February 2026

Claude Opus 4.6

Agent teams arrive in Claude Code as Opus leads on real work tasks.

Claude Opus 4.6 led GPT-5.2 by about 144 Elo on the GDPval-AA knowledge-work benchmark and set the top score on Terminal-Bench 2.0. It introduced agent teams in Claude Code, priced at $5 and $25 per million tokens.

See it in the living tree Wikipedia Source

Arcs above join it to what it stood on, arcs below to what it led to. The bar places this stretch on the tree's whole timeline.

What it built on 1

Claude Opus 4.5 2025

What it led to 1

Claude Opus 4.7 2026

Watch

Introducing Claude Opus 4.6Anthropic · YouTube

Related measurements

The dashed line marks when it first worked.

Best AI score on GPQA Diamond Latest: 95.8 % correct (2026) Source: Epoch AI, Capabilities & benchmarking (benchmark_data.zip, gpqa_diamond.csv); Anthropic: Claude 3 public launch (March 4, 2024)

Training compute of notable AI models Source: Epoch AI, Notable AI Models (CC BY 4.0)