DeepSeek V4.1-Flash leak: 552B params claiming GPT-5.6-level scores via CED architecture
iScienceLuvr · x · 2026-09-10
A third-party post claims DeepSeek released DeepSeek-V4.1-Flash, with benchmarks allegedly matching "GPT-5.6 Sol" despite only 552B params — the poster himself suspects benchmark gaming. Key architecture details cited:
- A Causal Encoder-Decoder (CED) design where decoder global KV is projected from final encoder hidden states, bypassing full decoder KV computation
- Only 8B params active per token during prefill and 16B during decode, aimed at input-heavy agentic workloads
- Described as an SWA-based local-processing backbone augmented with compressed global context, with aggressive KV cache compression as the core focus
Unverified: DeepSeek has not officially confirmed this release.
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