Model family timeline
Last updated Jan 21, 2025
Claude 2 model releases
A source-backed timeline for the Claude 2 model family, collecting release dates, labs, access details, context windows, and major lifecycle changes.
2
Models
1
Labs
0
Open
2
Recent
Most recent in this set
2 models
Claude 2.1
RetiredAnthropicProprietary
Claude update with a 200K context window, lower hallucination rates, and improved tool-use beta support.
Type
—
Params
Undisc.
Context
200K
Top eval
—
Released
Nov 21, 2023
2.6y ago
—Undisc.200K ctxNov 21, 2023
Claude 2
RetiredAnthropicProprietary
Anthropic's first widely-available Claude, notable for an early 100k-token context window.
Type
—
Params
Undisc.
Context
100K
Top eval
—
Released
Jul 11, 2023
2.9y ago
—Undisc.100K ctxJul 11, 2023