Verified65% confidenceFactTime unknown
Anthropic has been using Claude to help build Claude itself.
3
Sources
65%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
Anthropic源码泄露：Opus 4.7、Sonnet 4.8及卧底模式全面曝光
bilibili未来变量relaunch
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Related Claims
UnverifiedAnthropic的Claude使用自研分词器81% similarUnverifiedAnthropic has been using Claude to help build Claude itself, a practice known in the industry as 'dogfooding'.80% similarUnverifiedAnthropic此前发布过关于Claude性格特征的详细文档（Claude的Character文档）80% similarVerifiedAnthropic is the parent company of Claude.78% similarUnverifiedAnthropic has enhanced citation and retrieval capabilities in Claude.78% similar
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