Liquid AI launches 230M and 350M encoders that stay fast on long context

helloiamleonie · x · 2026-07-29

Liquid AI says its new LFM2.5-Encoders are tiny, fast bidirectional encoders built from the LFM2.5 backbones. The company replaced causal attention with bidirectional attention, made the short convolutions non-causal, and trained with a masked-language-modeling objective. Two models are released: LFM2.5-Encoder-230M and LFM2.5-Encoder-350M.

The release targets classification, retrieval, intent routing, safety filters, and other encoder-based workloads that often run on CPUs. Liquid AI says the models stay efficient at long context lengths up to 8,192 tokens and can encode a 12–15 page document, about 8k tokens, in under 30 seconds on a CPU.

Related event: LiquidAI Releases Two Multilingual Encoders Optimized for CPU(3 posts)→

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