ModelsBenchmark resultAgents & Tool Use · Applications1 source · Oct 11, 2026

AI agent teams waste massive tokens for barely measurable quality gains, research finds

Teams of AI agents barely outperform solo agents but cost up to 5.1x more, according to Vals AI.

Proof1 independent outlet

Key points

  • Only one out of four tests with GPT-6 Sol and Claude Opus 5.5 showed a measurable gain.
  • Anthropic's own data backs this up: beyond ten agents, quality plateaus while token costs keep climbing.
  • The article AI agent teams waste massive tokens for barely measurable quality gains, research finds appeared first on The Decoder.

Sources (1)

Extractive summary: sentences quoted from the sources.

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