[KongchangAI]
Unverified50% confidenceReleaseExact time

Anthropic released Claude Opus 5.5 on almost the same day as OpenAI's release.

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/26/2026
First Seen
Valid until: 12/25/2026

Sources

GPT-6 and Claude Opus 5.5 Launch on the Same Day: The AI Model Price War Escalates

Related Entities

AnthropiccompanyClaude Opus 5.5model

Related Claims

VerifiedAnthropic released Claude 5.1, along with a Claude Opus-level security version for trusted professional users.77% similar

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https://kongchang.com/claim/951255
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curl https://kongchang.com/api/v1/knowledge/claims/951255
MCP
get_claim(id=951255)