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Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.
Showing the first 40 findings. More graph evidence exists in the corpus.
Opus 4.5 leads SWE-bench Feb 2026 at 80.9% accuracy.
Source findingOpus 4.5 is built by Anthropic.
Source findingTool Search Tool improved selection accuracy from 79.5% to 88.1% on Opus 4.5
Source findingOpus 4.7 is a clear intelligence upgrade over Opus 4.5.
Source findingClaude Sonnet 4.6 achieves Opus 4.5-comparable performance at Sonnet pricing
Source findingOpus 4.5 agents systematically out-negotiated Haiku 4.5 in the Project Deal experiment.