Expired50% confidenceFactExact time
Claude Sonnet 4 is positioned above the previous Opus series, with the company officially describing it as a new category within the Sonnet series.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 9/30/2026(expired)
Sources
Deep Dive into Claude Sonnet 4: Replicating Lovable with Just Two Prompts
bilibili万物深译6/15/2026
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 5.76% similarUnverifiedSonnet 5 has switched to the tokenizer from Opus 4.7.71% similarUnverifiedGenSpark Claw supports running mainstream models such as Sonnet 4.6.70% similarVerifiedUnreleased model version numbers Opus 4.7 and Sonnet 4.8 appeared in the leaked code.69% similarUnverifiedSonnet 4.6 ranks first in the world on the Computer Use Benchmark.65% similar
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