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We introduce our first-generation reasoning models, DeepSeek-R1-Zero and DeepSeek-R1. DeepSeek-R1-Zero, a model trained via large-scale reinforcement learning (RL) without supervised fine-tuning (SFT) as a preliminary step, demonstrated remarkable performance on reasoning. With RL, DeepSeek-R1-Zero naturally emerged with numerous powerful and interesting reasoning behaviors. However, DeepSeek-R1-Zero encounters challenges such as endless repetition, poor readability, and language mixing. To address these issues and further enhance reasoning performance, we introduce DeepSeek-R1, which incorporates cold-start data before RL. DeepSeek-R1 achieves performance comparable to OpenAI-o1 across math, code, and reasoning tasks. To support the research community, we have open-sourced DeepSeek-R1-Zero, DeepSeek-R1, and six dense models distilled from DeepSeek-R1 based on Llama and Qwen. DeepSeek-R1-Distill-Qwen-32B outperforms OpenAI-o1-mini across various benchmarks, achieving new state-of-the-art results for dense models. **NOTE: Before running DeepSeek-R1 series models locally, we kindly recommend reviewing the Usage Recommendation section.** DeepSeek-R1-Zero & DeepSeek-R1 are trained based on DeepSeek-V3-Base. For more details regarding the model architecture, please refer to DeepSeek-V3 repository.

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最强 DeepSeek-R1 在数学、代码和推理任务中实现了与 OpenAI-o1 相当的性能;支持 32K 上下文

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DeepSeek-V2

DeepSeek

Today, we’re introducing DeepSeek-V2, a strong Mixture-of-Experts (MoE) language model characterized by economical training and efficient inference. It comprises 236B total parameters, of which 21B are activated for each token. Compared with DeepSeek 67B, DeepSeek-V2 achieves stronger performance, and meanwhile saves 42.5% of training costs, reduces the KV cache by 93.3%, and boosts the maximum generation throughput to 5.76 times. We pretrained DeepSeek-V2 on a diverse and high-quality corpus comprising 8.1 trillion tokens. This comprehensive pretraining was followed by a process of Supervised Fine-Tuning (SFT) and Reinforcement Learning (RL) to fully unleash the model's capabilities. The evaluation results validate the effectiveness of our approach as DeepSeek-V2 achieves remarkable performance on both standard benchmarks and open-ended generation evaluation. Due to the constraints of HuggingFace, the open-source code currently experiences slower performance than our internal codebase when running on GPUs with Huggingface. To facilitate the efficient execution of our model, we offer a dedicated vllm solution that optimizes performance for running our model effectively.

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DeepSeek-V2.5 is an upgraded version that combines DeepSeek-V2-Chat and DeepSeek-Coder-V2-Instruct. The new model integrates the general and coding abilities of the two previous versions. For model details, please visit DeepSeek-V2 page for more information. DeepSeek-V2.5 better aligns with human preferences and has been optimized in various aspects, including writing and instruction following: **To utilize DeepSeek-V2.5 in BF16 format for inference, 80GB*8 GPUs are required.** You can directly employ Huggingface's Transformers for model inference.

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基础档案已收录,详细介绍后续补充。可先查看厂商、分类与来源。

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Model Download | Evaluation Results | Model Architecture | API Platform | License | Citation Today, we’re introducing DeepSeek-V2, a strong Mixture-of-Experts (MoE) language model characterized by economical training and efficient inference. It comprises 236B total parameters, of which 21B are activated for each token. Compared with DeepSeek 67B, DeepSeek-V2 achieves stronger performance, and meanwhile saves 42.5% of training costs, reduces the KV cache by 93.3%, and boosts the maximum generation throughput to 5.76 times. We pretrained DeepSeek-V2 on a diverse and high-quality corpus comprising 8.1 trillion tokens. This comprehensive pretraining was followed by a process of Supervised Fine-Tuning (SFT) and Reinforcement Learning (RL) to fully unleash the model's capabilities. The evaluation results validate the effectiveness of our approach as DeepSeek-V2 achieves remarkable performance on both standard benchmarks and open-ended generation evaluation.

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Model Download | Evaluation Results | Model Architecture | API Platform | License | Citation Last week, the release and buzz around DeepSeek-V2 have ignited widespread interest in MLA (Multi-head Latent Attention)! Many in the community suggested open-sourcing a smaller MoE model for in-depth research. And now DeepSeek-V2-Lite comes out: - 16B total params, 2.4B active params, scratch training with 5.7T tokens - Outperforms 7B dense and 16B MoE on many English & Chinese benchmarks - Deployable on single 40G GPU, fine-tunable on 8x80G GPUs

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Model Download | Evaluation Results | Model Architecture | API Platform | License | Citation Last week, the release and buzz around DeepSeek-V2 have ignited widespread interest in MLA (Multi-head Latent Attention)! Many in the community suggested open-sourcing a smaller MoE model for in-depth research. And now DeepSeek-V2-Lite comes out: - 16B total params, 2.4B active params, scratch training with 5.7T tokens - Outperforms 7B dense and 16B MoE on many English & Chinese benchmarks - Deployable on single 40G GPU, fine-tunable on 8x80G GPUs

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deepseek-v3

DeepSeek

DeepSeek-V3的表现与OpenAI的GPT-4o和Claude-3.5-Sonnet相当,甚至在某些任务上超越了Llama 3.1和Qwen 2.5等开源模型

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Text generationOpen weights
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DeepSeek-V3-0324 demonstrates notable improvements over its predecessor, DeepSeek-V3, in several key aspects. - Significant improvements in benchmark performance: - MMLU-Pro: 75.9 → 81.2 (+5.3) - GPQA: 59.1 → 68.4 (+9.3) - AIME: 39.6 → 59.4 (+19.8) - LiveCodeBench: 39.2 → 49.2 (+10.0) - Improved the executability of the code - More aesthetically pleasing web pages and game front-ends

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DeepSeek-V3.1 is a hybrid model that supports both thinking mode and non-thinking mode. Compared to the previous version, this upgrade brings improvements in multiple aspects: - **Hybrid thinking mode**: One model supports both thinking mode and non-thinking mode by changing the chat template. - **Smarter tool calling**: Through post-training optimization, the model's performance in tool usage and agent tasks has significantly improved.

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DeepSeek-V3.1 is a hybrid model that supports both thinking mode and non-thinking mode. Compared to the previous version, this upgrade brings improvements in multiple aspects: DeepSeek-V3.1 is post-trained on the top of DeepSeek-V3.1-Base, which is built upon the original V3 base checkpoint through a two-phase long context extension approach, following the methodology outlined in the original DeepSeek-V3 report. We have expanded our dataset by collecting additional long documents and substantially extending both training phases. The 32K extension phase has been increased 10-fold to 630B tokens, while the 128K extension phase has been extended by 3.3x to 209B tokens. Additionally, DeepSeek-V3.1 is trained using the **UE8M0 FP8 scale data format on both model weights and activations** to ensure compatibility with microscaling data formats. Please refer to DeepGEMM for more details.

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DeepSeek-V3.1 Terminus is an update to DeepSeek V3.1 that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...

Text generationOpen weights
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$0.27 / M input tokensOpenRouter · deepseek/deepseek-v3.1-terminus
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DeepSeek-V3.2 is a large language model designed to harmonize high computational efficiency with strong reasoning and agentic tool-use performance. It introduces DeepSeek Sparse Attention (DSA), a fine-grained sparse attention mechanism...

Text generationOpen weights
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$0.26 / M input tokensOpenRouter · deepseek/deepseek-v3.2
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DeepSeek-V3.2-Exp is an experimental large language model released by DeepSeek as an intermediate step between V3.1 and future architectures. It introduces DeepSeek Sparse Attention (DSA), a fine-grained sparse attention mechanism...

Text generationOpen weights
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$0.27 / M input tokensOpenRouter · deepseek/deepseek-v3.2-exp
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