Expired50% confidenceFactExact time
The model version number mentioned in the post (which the author referred to as Opus 5.5) cannot be verified from publicly available information.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/28/2026
First Seen
Valid until: 10/12/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedRegarding the 'Opus 5.5' version mentioned in the experiment, no authoritative channel has confirmed this naming.78% similarUnverifiedAs of currently available public information, the specific version "Opus 5.5" has not been seen in any official release records from Anthropic75% similarUnverifiedSpecific benchmark data and technical details for Opus 5.5 have not yet been officially disclosed.69% similarUnverifiedA version number self-reported by a model alone is insufficient to confirm that it is the officially named release version.68% similar
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