Claude 2 at a glance
Claude 2 improved coding and exam scores over Claude 1.3, accepted prompts of up to 100K tokens, and launched in the API and on claude.ai in the US and UK.
What changed with Claude 2
Anthropic released Claude 2 on July 11, 2023, through its API and a new public beta website, claude.ai, initially open in the US and UK. Business API pricing stayed the same as Claude 1.3.
Anthropic reported 76.5% on the multiple-choice section of the bar exam, up from 73.0% for Claude 1.3, and 71.2% on the Codex HumanEval coding test, up from 56.0%. Prompts could hold up to 100K tokens, which Anthropic said was enough for hundreds of pages of documentation.
Claude 2 in numbers
Values are copied from the linked source on the date shown. They are not IA Compa measurements.
- Context windowas of · Source for Context window: anthropic.com (opens in a new tab)
- 100K tokens
How it compares
Other models in the same category that we have covered, using each model's latest recorded value. (Models)
Where to compare Claude 2
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
General leaderboards
Why Claude 2 matters for businesses
For businesses, the 100K window was the headline. Teams could drop in whole contracts, reports or manuals and ask questions about them directly, which made document review one of the first broadly useful AI workflows.
Sources for this story
- Claude 2 (opens in a new tab)Official
Anthropic · anthropic.com
- Claude 2.0 model page (opens in a new tab)Benchmark
Artificial Analysis · artificialanalysis.ai
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
- #llm
- #anthropic
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- #long-context


