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FrontierThe story, in brief

Three reasons why DeepSeek’s new model V4 matters

DeepSeek just shipped V4. Extended context window, open-source, and it's forcing everyone else to recalibrate.

Reporting by MIT Technology Review 1 min brief
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The KeyNews take

Why it matters

DeepSeek V4's improved context handling and open-source availability challenge closed-model incumbents on both capability and accessibility, signaling renewed competitive pressure in the flagship model tier.

The key facts

5 to know

  1. DeepSeek V4 released as preview on April 24, 2026

  2. Extended context window vs. previous generation

  3. New architecture for improved long-form text processing

  4. Open-source availability

  5. Chinese AI firm flagship model release

Go to the source

MIT Technology Reviewtechnologyreview.com

Publisher excerpt: On Friday, Chinese AI firm DeepSeek released a preview of V4, its long-awaited new flagship model. Notably, the model can process much longer prompts than its last generation, thanks to a new design that helps it handle large amounts of text more efficiently. Like DeepSeek’s previous models, V4 is…
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