KAIST's LARC: Continuous Latent Reasoning Adds Test-Time Scaling to Unified Multimodal Models

kaist-ai · hf · 2026-11-02

LARC from KAIST/POSTECH addresses the modality mismatch in unified multimodal models: reasoning happens in discrete token space while image generation is continuous. It reasons over continuous hidden states via two training stages — curriculum SFT converting token-level reasoning into latent reasoning, then information-gain RL that self-evolves without ground truth. LARC achieves SOTA on GenEval with a 7pp gain over BAGEL and shows clear test-time scaling, beating token-based generation under both parallel and sequential strategies.

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