WhichBot › What replaced it › What replaced Claude Opus 4.1?
Last checked Oct 28, 2026 · plain English · no paid picks
What replaced Claude Opus 4.1?
Short answer: Anthropic named Claude Opus 4.8. Claude Opus 4.1 retired on Aug 5, 2026. The newest Opus in our directory is Claude Opus 5.5.
What to do: Use a current Opus model such as Claude Opus 5.5. Note that GitHub Copilot drops Opus 4.8 on Nov 16, 2026 (individual annual plans keep it).
The facts
| Old | Claude Opus 4.1 |
|---|---|
| Status | Retired. Retired Aug 5, 2026 |
| Replaced by | Claude Opus 4.8 |
| Official source | platform.claude.com · github.blog |
| Last checked | Oct 28, 2026 |
Current options at a glance
| Claude Opus 5.5 | |
|---|---|
| What it is | Anthropic's top model |
| Made by | Anthropic |
| Price | Developer price: $4 in and $20 out per million tokens |
| Good at | Hector's pick for long documents and writing; Best for: long documents, writing, coding; Reads up to 1,000,000 tokens at once; Reads: text, image, PDFs |
| Where it runs | Claude Pro/Max |
| Status | Current. Retirement not sooner than Sep 22, 2027. Fast mode (up to ~2.5x faster output, $8/$40 per million tokens) is open to all developer service users since Oct 15, 2026 |
| Sources | platform.claude.com · claude.com · models.dev · platform.claude.com (2) · platform.claude.com (3) |
Related pages
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Questions people ask
What replaced Claude Opus 4.1?
Anthropic named Claude Opus 4.8. Claude Opus 4.1 retired on Aug 5, 2026. The newest Opus in our directory is Claude Opus 5.5.
What should I do if I used Claude Opus 4.1?
Use a current Opus model such as Claude Opus 5.5. Note that GitHub Copilot drops Opus 4.8 on Nov 16, 2026 (individual annual plans keep it).
Does Claude Opus 4.1 still work?
Retired. Retired Aug 5, 2026
Facts come from the companies' own pages, linked above, and were last checked Oct 28, 2026. Prices are US and can change. Picks are Hector's: no paid picks, sponsors always labeled, and no sponsorship from AI labs. Our policy.