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[ARTICLE · art-52298] src=vincentschmalbach.com ↗ pub= topic=artificial-intelligence verified=true sentiment=↓ negative

Anthropic Changed the Sonnet 5 Chart After It Made Sonnet Look Bad

Anthropic altered the Sonnet 5 cost-performance chart after the initial version showed the model underperforming compared to Opus 4.8. The replacement chart presents a more favorable comparison.

read1 min views2 publishedJul 2, 2026

Anthropic re-wrote the Sonnet 5 story post-launch. The first BrowseComp cost-performance chart showed Sonnet 5 lagging Opus 4.8. The replacement chart paints... Read More...

Source

source & further reading
vincentschmalbach.com — original article The End of Claude Code Subscriptions Sonnet 5 Is Dead in the Water Anthropic Is Hitting a Wall
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