Unverified50% confidenceEventExact time
Weeks before the release of Anthropic's Claude 3 series, developers discovered its model names in the SDK's type definition files.
1
Sources
50%
Confidence
Long-term
Relevance
8/12/2026
First Seen
Sources
谷歌SDK意外泄露Gemini 4 Flash：真实规划还是占位符？
Related Claims
VerifiedAnthropic has released the Claude series of large models, including versions such as Claude 3.5 and Claude 3.7.72% similarUnverifiedIn 2024, Anthropic released the Claude 3.5 series of models.67% similarUnverifiedThe design of claude.md only became truly mature and usable after the Claude 3 series was released, because its effectiveness is highly dependent on the model's ability to understand long contexts.66% similarUnverifiedThe Claude 3.5 series launched in 2024 further refined Claude's naming system.65% similarUnverifiedAnthropic's Claude model naming scheme follows the Claude 1/2/3/3.5/4 series with sub-model designations of Haiku, Sonnet, and Opus, and has never featured a 'Fable' designation.64% similar
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