Anthropic releases Claude 2 with public claude.ai access
Confirmed
The takeaway
Claude 2 improved coding, math and reasoning, offered a 100K-token context window, and launched with the public claude.ai beta in the US and UK.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- 3 of 5
- Last verified
- 29 September 2026
Your AI and this story
- GPT-6 AstraIn its training data
- Claude Opus 5.5In its training data
- Gemini 4 HydrogenIn its training data
- Grok 4.7In its training data
It happened before the cutoffs of all four assistants, so it can be in their training data.
Key facts
- Released 11 July 2023
- 100K-token context window
- Scored 76.5% on the multiple-choice section of the Bar exam (per Anthropic)
- Claude 2.1 (November 2023) doubled context to 200K tokens
What happened
Anthropic released a stronger model and made its consumer chat product broadly available for the first time.
Why it matters
Established Claude as a mainstream alternative to ChatGPT and pushed long-context as a competitive feature.
Sources
2 sources from 1 site. Numbers match the chips in the text.
2 sources: 2 primary
Primary
- Claude 2 (Anthropic)anthropic.com, official
- Introducing Claude 2.1 (Anthropic)anthropic.com, official
Changes
- Filed