[KongchangAI]
Expired75% confidenceEventTime unknown

Developer Henry-Jessie used GPT-5.2 together with the Codex CLI tool to achieve a score surpassing Claude Opus 4.5 in Anthropic's Performance Take-Home challenge.

1
Sources
75%
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/30281
API
curl https://kongchang.com/api/v1/knowledge/claims/30281
MCP
get_claim(id=30281)