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Cache-to-Cache: Direct Semantic Communication Between Large Language Models

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Hacker News | Sep 18, 2026 | rochansinha

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Thus, we propose Cache-to-Cache (C2C), a new paradigm for direct semantic communication between LLMs. Compared with text communication, C2C utilizes the deep, specialized semantics from both models, while avoiding explicit intermediate text generation. Experiments show that C2C achieves 6. 4-14. 2% higher average accuracy than individual models.

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