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DeepSeek V4 closes the gap

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DeepSeek previewed V4 Pro — the largest open-weight model as of April 2026 (1.6T parameters). It beats GPT-5.2 and Gemini 3.0 Pro on some reasoning benchmarks, while V4 Pro output costs $3.48 per million tokens — vs $30 for GPT-5.5, released the day before. On knowledge tasks DeepSeek still lags the frontier by 3–6 months, and supports text only — no images, audio, or video.

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