Expired70% confidenceFactTime unknown
Claude Sonnet 4 was the industry leader in Anthropic's product line just five months ago
1
Sources
70%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedClaude Sonnet 4.5 was released five months before Claude Haiku 4.5.71% similarUnverifiedClaude 3.5 Sonnet and the Claude 4 series have performed prominently on authoritative benchmarks such as SWE-bench.71% similarUnverifiedClaude Sonnet 4 is a mid-tier model released by Anthropic in mid-2025, with a score on SWE-bench that significantly leads models of the same tier70% similarUnverifiedThe level of autonomous operation capability that Claude Sonnet 5 possesses was, just a few months ago, exclusive to larger and more expensive models70% similarVerifiedClaude Sonnet 4 is a new-generation large language model released by Anthropic, belonging to the mid-range product line of the Claude 4 series.69% similar
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