Verified70% confidenceFactExact time
V4.1 Flash adopts a new CED (Causal Encoding) architecture, whose core idea is an asymmetry in computation between input and output.
4
Sources
70%
Confidence
Long-term
Relevance
9/11/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedV4.1 Flash adopts a separated encoder-decoder design, where the prefill phase is handled by a 20-layer encoder, and the memory for the decoding phase is projected directly from the encoder's final output.78% similarUnverifiedThe asymmetric input-output architecture of V4.1 Flash is designed to align with the distribution pattern in Agent tasks where input tokens far outnumber output tokens, thereby reducing overall inference costs.76% similarUnverifiedDeepSeek V4.1 Flash adopts a Causal Encoder-Decoder (CED) architecture, in which a 40-layer transformer has the first 20 layers as a causal encoder and the last 20 layers as a decoder.75% similarUnverifiedDeepSeek officially stated that 4.1 Flash adopts a new architectural design, making inference faster and more efficient.75% similarUnverifiedThe model identifier of Decider Flash V1.2 4B is perplexity/pplx-decider-flash-v1.2, aimed at high-concurrency labeling, filtering and routing tasks.74% similar
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