Unverified50% confidenceFactExact time

Existing prompts written for Opus 5 run on Opus 5.5 without modification.

1

Sources

50%

Confidence

Medium-term (~90 days)

Relevance

9/28/2026

First Seen

Valid until: 12/27/2026

Sources

Claude Opus 5.5 Official Prompting Guide: 12 Key Takeaways

Related Entities

Claude Opus 5.5model Opus 5model

Related Claims

UnverifiedClaude Opus 5.5 is available today on all platforms.77% similar UnverifiedClaude Opus 4.6 is a product launched by Anthropic to compete with GPT 5.3 Codex.72% similar UnverifiedOpus 5.5 is particularly adept at parsing table structures.72% similar

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Stable URI

https://kongchang.com/claim/955127

API

curl https://kongchang.com/api/v1/knowledge/claims/955127

MCP

get_claim(id=955127)