Action-native model skips JSON parsing, outputs action probabilities for cheaper, faster inference

FrankFelixAI · x · 2026-09-16

A repost highlights an "action native" model: instead of sequentially generating JSON text that gets parsed into actions like conventional LLMs, it directly outputs probabilities over discrete actions.

The author notes the exact architecture is unknown, but this specialization appears to make the model very cheap and fast to run — especially on the output side, since no autoregressive text decoding is needed. The approach reflects a broader trend of bypassing language tokens to model actions directly for agents and robotics.

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