Expired75% confidencePredictionExact time
Anthropic stated that Sonnet 5.5 and Haiku 5.5 are coming soon.
5
Sources
75%
Confidence
Short-term (~14 days)
Relevance
9/23/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 10/7/2026(expired)
Sources
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 5.76% similarUnverifiedClaude Sonnet 5.5 has officially launched on the Databricks platform, covering all three major cloud environments: AWS, Azure, and GCP.75% similarUnverifiedSonnet 5.5 has been available on all platforms since its launch date and is immediately accessible to users70% similarUnverifiedSonnet 5 has switched to the tokenizer from Opus 4.7.65% similarUnverifiedClaude Sonnet 4 is positioned above the previous Opus series, with the company officially describing it as a new category within the Sonnet series.64% similar
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