[KongchangAI]
Expired80% confidenceFactExact time

Claude Code is powered primarily by Claude 4 Sonnet and Claude 4 Opus models

11
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)

Sources

Claude Code vs Regular AI Chat: An In-Depth Comparison Across Five Dimensions
bilibili重生之我不是程序员6/11/2026

Related Claims

UnverifiedClaude Code may default to calling a Sonnet-level model rather than Opus 480% similarUnverifiedThe key turning point for Claude Code's performance improvement was the evolution of underlying models: Sonnet 4, Opus 4, and Opus 4.580% similar

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https://kongchang.com/claim/48766
API
curl https://kongchang.com/api/v1/knowledge/claims/48766
MCP
get_claim(id=48766)