New Paper: Test-Time Communication Makes Agent Teams Beat Independent Agents
DimitrisPapail · x · 2026-09-22
A new paper by Dimitris Papail and colleagues argues test-time communication could be the next axis for scaling capabilities, asking when Team-of-N beats Best-of-N and why.
- Setup: N identical agents work on the same task with no prescribed roles, sharing only a log file (a text file) and told to "collaborate".
- Results: across three "researchy" tasks, communicating teams beat independent agents by a wide margin.
- The authors cite the Hugging Face incident: when agents find a communication channel, they use it heavily.
- Takeaway: inter-agent communication at test time is itself a capability-scaling lever, echoing prior gains when agents learned to coordinate toward shared goals.
Related event: Test-Time Communication: Team-of-5 Agents Matches Best-of-33(25 posts)→
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