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DeepSeek launches new V4 model preview versions

Chinese AI developer DeepSeek has released preview versions of its new V4 AI model, the Wall Street Journal reported. The company announced the launch on its official WeChat account. DeepSeek said V4-Pro has significantly improved agent coding capabilities and offers user experience ahead of Anthropic\'s Claude Sonnet 4.5. It said output quality nears Claude Opus 4.6 in non-thought mode but trails its thought mode. The model supports Huawei chips and features Sparse Attention technology. DeepSeek also launched the cheaper, faster V4-Flash.