Good Agentic Friends: Multi-Agent LLMs Communicate via Hidden-State Weight Updates Instead of Text

arXiv·medium signalXBlueskyLinkedInCopy link

Paper proposes an alternative to natural-language multi-agent communication: compile the sender's hidden states into a transient weight update applied to the receiver, bypassing token serialization entirely. This reduces generated-token cost, prefill overhead, and KV-cache memory compared to text-based message passing. A practical architecture change for anyone building multi-agent systems at scale where token cost and latency are bottlenecks.