[KongchangAI]
Expired70% confidenceFactTime unknown

Claude Opus 4.5's baseline score in the Anthropic Performance Take-Home challenge was 1,487 cycles.

1
Sources
70%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026(expired)

Sources

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Stable URI
https://kongchang.com/claim/30282
API
curl https://kongchang.com/api/v1/knowledge/claims/30282
MCP
get_claim(id=30282)