ModelClock
Release announced
Released on Jul 24, 2026
Impossibl announced this model on 2026-07-24. ai api.
- Hosting route
- Impossibl platform
- Affected scope
- ai api
- Announced
- Jul 24, 2026
- First seen by ModelClock
- Oct 7, 2026
What the provider published
impossibl.com ↗anthropic/claude-opus-5
new model
claude opus 5 joins the ai api with a 1m-token context window and native anthropic fallback.
Read from the provider's text; the quote is the provider's exact lines.