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TRUE, BUT

OpenAI and Anthropic are selling the same next step for AI agents: more of them. Claude Code now forks subagents by default, and Sol Ultra fans a problem across up to 64. Google Research ran the controlled test, and the answer is a split: more agents help work that breaks into independent pieces and hurt work that runs as one dependent chain, by up to 70%. Which one your task is decides whether the swarm is an upgrade or a tax.

OpenAI (GPT-5.6 Sol Ultra) and Anthropic (Claude Code subagents), and the industry 'more agents are better' heuristic, August 2026. Recorded 19 August 2026. Our ruling means: literally true, materially misleading.

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6 receipts: 2 support the claim, 2 contradict it, 2 add context. 4 figures on the record, 3 traced to a quoted receipt.

  1. 1code.claude.com ↗Every source link and quote stays open on the story page.
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