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Anthropic

claude-opus-5-5

Name unknown

Hint only. This ID has appeared in public docs or frontend code but not in a provider catalog. It may not work for inference yet.
Status
Hinted
First seen
2026-10-07 17:07 UTC
Last seen
2026-10-07 20:03 UTC
First evidence
Hint
Best evidence
Hint
Seen byEvidenceStateLast seen
Anthropic models overviewHintListed

Release

Model
Claude Opus 5.5
Lab
Anthropic
Released
22 Sep 2026
4 sources agree
  • models.dev metadata: released 18 Sep 2026
  • Epoch AI model data: released 22 Sep 2026 source
  • models.dev metadata: released 22 Sep 2026 (27 hosts)
  • OpenRouter catalog: listed on OpenRouter 22 Sep 2026
  • Vercel AI Gateway: released 22 Sep 2026
First listed
  • OpenRouter · 22 Sep 2026 (same day)

History

Nothing here yet

No changes recorded for this model since the baseline.