Expired50% confidenceEventExact time

A reference to Claude Opus 5.5 appeared in the official Anthropic GitHub repository ClaudeForFoundationModels.

1

Sources

50%

Confidence

Short-term (~14 days)

Relevance

9/22/2026

First Seen

Valid until: 10/6/2026(expired)

Sources

Claude Opus 5.5 Spotted in GitHub Commits — Anthropic's Next Flagship Model Takes Shape

Related Entities

Anthropiccompany Claude Opus 5.5model GitHubproduct ClaudeForFoundationModelsproduct

Related Claims

UnverifiedClaude Opus 4.6 is a product launched by Anthropic to compete with GPT 5.3 Codex.65% similar UnverifiedAnthropic released Claude 5.1, along with a Claude Opus-level security version for trusted professional users.64% similar

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Stable URI

https://kongchang.com/claim/941641

API

curl https://kongchang.com/api/v1/knowledge/claims/941641

MCP

get_claim(id=941641)