Expired80% confidenceEventTime unknown
Anthropic released Claude Sonnet 4.6 in February 2026.
9
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
5/31/2026
First Seen
Valid until: 8/29/2026(expired)
Sources
Related Entities
Related Claims
Cite This Claim
Stable URI
https://kongchang.com/claim/13711API
curl https://kongchang.com/api/v1/knowledge/claims/13711MCP
get_claim(id=13711)