China’s DeepSeek Unveils New AI Model ‘V4’ with One-Million-Word Context

Startup releases preview versions of advanced model, positioning it against top global rivals in reasoning and knowledge benchmarks

April 24, 2026 at 10:45 AM
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Beijing, China: Chinese startup DeepSeek released “preview” versions of a new artificial intelligence model on Friday, more than a year after it stunned the world with a low-cost reasoning model that matched the capabilities of US rivals.

The long-awaited DeepSeek-V4 “features an ultra-long context of one million words, achieving leadership in both domestic and open-source fields across agent capabilities, world knowledge, and reasoning performance”, the company said in a statement on social media.

A “preview version” is now available, the company said.

The new DeepSeek-V4 model is released as two versions, DeepSeek-V4-Pro and DeepSeek-V4-Flash, with the latter being “a more efficient and economical choice” because it has smaller parameters.

“In world knowledge benchmarks, DeepSeek-V4-Pro significantly leads other open-source models and is only slightly outperformed by the top-tier closed-source model, (Google’s) Gemini-Pro-3.1,” the statement added.

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