[KongchangAI]
Verified65% confidenceReleaseExact time

Anthropic released Claude 5.1, along with a Claude Opus-level security version for trusted professional users.

3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
9/4/2026
First Seen
Valid until: 12/3/2026

Sources

Claude 5.1 Complete Breakdown: Cost, Scientific Capabilities, and Safety Guardrails Explained

Related Entities

AnthropiccompanyClaude 5.1model

Related Claims

UnverifiedAnthropic released Claude Opus 5.5 on almost the same day as OpenAI's release.77% similarUnverifiedAnthropic released the Opus 5.5 model along with an accompanying prompting guide.72% similar

Cite This Claim

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https://kongchang.com/claim/853475
API
curl https://kongchang.com/api/v1/knowledge/claims/853475
MCP
get_claim(id=853475)