Mostik's latent bridge lets a 4B model read a 753B model's mind, halving the gap at 2.5x less compute
udmrzn · x · 2026-09-03
Mostik (a team of 12 PhDs, reportedly first on the ARC-AGI leaderboard) proposes replacing text-based multi-model handoffs with latent-space communication: hidden states flow from a frontier model directly into a small 4B model on your own infrastructure — no text in between, no fine-tuning of either model.
- The bridged 4B model closes half the performance gap to the 753B frontier model
- The pair uses 2.5x less compute than a score-matched mid-sized model
The core question: why should a frontier model generate your answer when you only need its reasoning?
Related event: Mostik Claims Top of ARC-AGI 3 with Latent-Space Model Bridging(7 posts)→
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