---
format: "aidr-story-markdown/v1"
id: "cf102c361d78de88a3bf1585fc98d3f2af8473df9960be55685f11cba31b048e"
canonical_url: "https://aidr.today/cf102c36?lang=en"
title: "AI agent teams waste massive tokens for barely measurable quality gains, research finds"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
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published_at: "2026-10-11T15:39:26.000Z"
category: "Agents"
topics: ["anthropic","agent"]
source_urls: ["https://the-decoder.com/ai-agent-teams-waste-massive-tokens-for-barely-measurable-quality-gains-research-finds/"]
summary: "Teams of AI agents barely outperform solo agents but cost up to 5.1x more, according to Vals AI. 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."
---

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

> [Open the canonical story](<https://aidr.today/cf102c36?lang=en>)

**Published:** 2026-10-11T15:39:26.000Z
**Category:** Agents
**Topics:** anthropic, agent

## Summary

Teams of AI agents barely outperform solo agents but cost up to 5\.1x more, according to Vals AI\. 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\.

## Sources

- [Story source](<https://the-decoder.com/ai-agent-teams-waste-massive-tokens-for-barely-measurable-quality-gains-research-finds/>)