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Causal Encoder-Decoder (CED) architecture

An architecture with a causal encoder followed by a decoder; the evidence also describes projecting decoder global key-value states from the final encoder hidden states.

Also called Causal Encoder-Decoder architecture, Causal Encoder-Decoder (CED).

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How sources treat it

One count per evidence span, weakest treatment to strongest.

used 1core 6

Documented in

Further reading

Picked by hand, not extracted: where to read more, not evidence for anything on this page.

Evidence

7 spans quoted from the sources, strongest treatment first.

New Causal Encoder–Decoder architecture: just 8B active parameters for input, 16B for output.

coremodel architecturein DeepSeek-V4.1-FlashDeepSeek

We adopt a Causal Encoder-Decoder (CED) architecture, in which decoder global KV is projected from the final encoder hidden states.

coremodel architecturein DeepSeek-V4.1-FlashDeepSeek

The Causal Encoder–Decoder (CED) architecture and Compressed Sparse Attention 2 (CSA2) address complementary costs of long-context inference.

coremodel architecturein DeepSeek-V4.1-FlashDeepSeek

Its Causal Encoder-Decoder (CED) architecture enables the model to activate only 8B parameters per token during prefill, compared with 16B during decode, improving cost efficiency for input-heavy agentic workloads.

coremodel architecturein DeepSeek-V4.1-FlashDeepSeek

DeepSeek-V4.1-Flash adopts a Causal Encoder-Decoder (CED) architecture: a 40-layer Transformer organized as a 20-layer causal encoder followed by a 20-layer decoder.

coremodel architecturein DeepSeek-V4.1-FlashDeepSeek

the first built on the company's Causal Encoder-Decoder (CED) architecture

coremodel architecturein DeepSeek-V4.1-FlashDeepSeek

We adopt a Causal Encoder-Decoder architecture, with 20 layers in the encoder and 20 layers in the decoder.

usedunclearin DeepSeek-V4.1-FlashDeepSeek

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