Artificial intelligence · 2023

Claude 2

Anthropic's public model with 100K context, then 200K in 2.1.

Released July 11, 2023, Claude 2 scored 71.2% on the HumanEval coding test and 76.5% on the multiple-choice bar exam section. Claude 2.1 in November doubled context to 200,000 tokens.

See it in the living tree Wikipedia

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 2023

What it led to 1

Claude 3 family 2024

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)