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The day in AI
Fri 13 Jun 2025
Friday 13 June 2025
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Research
13 Jun 2025
Anthropic
How we built our multi-agent research system
An Opus 4 lead with Sonnet 4 subagents beat single-agent Opus 4 by 90.2% on Anthropic's research eval, at about 15x the tokens of chat.