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Architecture innovations and practical capabilities that compound across every type of work.
Switch between Non-Think, Think High, and Think Max modes. Trade speed for depth depending on the task, from fast responses to maximum reasoning.
V4-Pro for maximum intelligence and V4-Flash for lightweight, fast, and low-cost use cases. Both share the same 1M context window and reasoning architecture.
Fully open weights for commercial and research use. Fine-tune, modify, and redistribute without restriction, with no proprietary terms attached.
Find out the answer to the most common questions people are asking.
Native integration with Claude Code, OpenClaw, and OpenCode. DeepSeek uses V4-Pro for its own internal agentic coding workflows.
Supports both OpenAI ChatCompletions and Anthropic API formats. Drop into any existing integration without changing your client code.
Input cache pricing has been cut to one-tenth of previous levels as a permanent change, making repeated long-context calls significantly cheaper at scale.
DeepSeek V4 generates complete, formatted PDFs and slide decks directly from conversational prompts, with layout and structure handled by the model.
V4-Pro outperforms all open-source models and rivals the best closed-source models on the most demanding mathematical reasoning evaluations.
Fully runnable via vLLM, SGLang, and Docker. Quantized versions available through Ollama and LM Studio for resource-constrained environments.
DeepSeek V4 sets a new bar for open-source models across coding, knowledge, and long-context tasks, trading punches with the best closed-source models available.
DeepSeek V4 scores 93.5% on LiveCodeBench, placing it above every other model in the comparison including Claude Opus 4.6, GPT-5.4, and Gemini 3.1 Pro. It also achieves the highest Codeforces rating of all tested models at 3206.
DeepSeek V4 scores 62% on CorpusQA at the full one million token context length. For teams processing full legal filings, research libraries, or large codebases in a single session, it is the strongest open-source option available.
V4-Pro Max scores 57.9% on SimpleQA-Verified, comfortably ahead of every open-source model and well above closed-source competitors including Claude Opus 4.6 at 46.2% and GPT-5.4 at 45.3%. Only Gemini 3.1 Pro scores higher among all models tested.
DeepSeek V4 leads all open-source models on factual retrieval. For knowledge-intensive work like research and technical analysis users get answers that are grounded in broad, accurate world knowledge rather than confident-sounding generalisations.
