Anthropic
Claude
Anthropic's family of frontier assistants (Opus / Sonnet / Haiku), known for long-context reasoning, coding, and a safety-first posture.
Version timeline as of Jun 25, 2026.
Version timeline
11 versions- Claude Fable 5Activeclaude-fable-5· 1M ctx · cutoff Jan 1, 2026 · Flagship
First publicly available Mythos-class model (above Opus); Mythos 5 weights with safety classifiers active. 1M context, $10/$50, highest benchmarks of any GA model. Refusals return stop_reason refusal; mandatory 30-day retention.
- Claude Mythos 5Activeclaude-mythos-5· 1M ctx · cutoff Jan 1, 2026 · Flagship
Same Mythos-class weights as Fable 5 with safety classifiers removed; restricted to Project Glasswing partners only (not public API). $10/$50.
- Claude Opus 4.8Current
Releases are dated and source-credited where available. Catch Me Up — everything that changed across AI & smart home ↗
