ResearchResearch paperLarge Language Models · Agents & Tool Use2 sources · Oct 14, 2026

Share the Symbol, Not the Vector: Training-Free Fact Communication Across Language Models

We introduce SYNC (Symbol-Indexed Neural Communication), a word-indexed interface that connects heterogeneous models without fine-tuning or a learned translator.

Key points

  • Multi-agent systems allow language models to solve tasks collaboratively by sharing complementary information.
  • These systems typically communicate through text, while recent approaches also explore exchanging internal model states.
  • However, sharing these states across architectures often requires learned translators or assumptions about model compatibility.
  • These results show that shared word indices and receiver-local directions can support selective fact use across model families without additional training.

Sources (2)

Extractive summary: sentences quoted from the sources.

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