Expired65% confidenceFactTime unknown
Unreleased model version numbers Opus 4.7 and Sonnet 4.8 appeared in the leaked code.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
5/31/2026
First Seen
Valid until: 8/29/2026(expired)
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
Related Entities
Related Claims
UnverifiedA similar Sonnet 5 leak (codenamed Phoenix) appeared in February of this year, but the model that was ultimately officially released was Sonnet 4.6, not Sonnet 5.73% similarUnverifiedSonnet 5改用了Opus 4.7的Tokenizer71% similarUnverifiedClaude Sonnet 4 is positioned above the previous Opus series, with the company officially describing it as a new category within the Sonnet series.69% similarUnverifiedGenSpark Claw supports running mainstream models such as Sonnet 4.6.61% similarUnverifiedThe open-source operating system openEuler 24.03 LTS SP4 has been officially released, based on the 6.6 kernel, with upgrades in elastic memory, AI graph compilers, and Agent sandbox inference.58% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/7457API
curl https://kongchang.com/api/v1/knowledge/claims/7457MCP
get_claim(id=7457)