---
title: "DeepSeek debuts DeepSeek-V4.1-Flash, its smallest model built on its new Causal Encoder-Decoder architecture, with 552B backbone parameters and 1M-token context (Reuters)"
type: signal
url: https://frontiernewswire.com/s/deepseek-debuts-deepseek-v4-1-flash-its-smallest-model-built-on-its-57c32864
published: 2026-09-10T09:55:07.000Z
byline: "Source: TECHMEME"
---

# DeepSeek debuts DeepSeek-V4.1-Flash, its smallest model built on its new Causal Encoder-Decoder architecture, with 552B backbone parameters and 1M-token context (Reuters)

Source: TECHMEME · Published 2026-09-10 · Canonical: https://frontiernewswire.com/s/deepseek-debuts-deepseek-v4-1-flash-its-smallest-model-built-on-its-57c32864

Reuters : DeepSeek debuts DeepSeek-V4.1-Flash, its smallest model built on its new Causal Encoder-Decoder architecture, with 552B backbone parameters and 1M-token context — Chinese artificial intelligence startup DeepSeek on Thursday launched DeepSeek-V4.1-Flash, which the company said is the smallest model …

In this story: [DeepSeek-V4.1-Flash](https://frontiernewswire.com/models/deepseek-v4-1-flash)

## Sources

- [Read the original at TECHMEME](https://www.techmeme.com/260910/p12#a260910p12)

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