Llama 2 vs. DeepSeek-V4

We are excited to unveil the latest version of our open-source large language model, which includes model weights and initial code for the pretrained and fine-tuned Llama language models, ranging from 7 billion to 70 billion parameters. The Llama 2 pretrained models have been crafted using a remarkable 2 trillion tokens and boast double the context length compared to the first iteration, Llama 1. Additionally, the fine-tuned models have been refined through the insights gained from over 1 million human annotations. Llama 2 showcases outstanding performance compared to various other open-source language models across a wide array of external benchmarks, particularly excelling in reasoning, coding abilities, proficiency, and knowledge assessments. For its training, Llama 2 leveraged publicly available online data sources, while the fine-tuned variant, Llama-2-chat, integrates publicly accessible instruction datasets alongside the extensive human annotations mentioned earlier. Our project is backed by a robust coalition of global stakeholders who are passionate about our open approach to AI, including companies that have offered valuable early feedback and are eager to collaborate with us on Llama 2. The enthusiasm surrounding Llama 2 not only highlights its advancements but also marks a significant transformation in the collaborative development and application of AI technologies. This collective effort underscores the potential for innovation that can emerge when the community comes together to share resources and insights.

DeepSeek-V4 represents a new generation of open large language models focused on scalable reasoning, advanced problem solving, and agentic intelligence. Designed to handle complex analytical tasks, it integrates DeepSeek Sparse Attention (DSA), a long-context attention innovation that significantly lowers computational demands while preserving model quality. This mechanism enables efficient processing of extended inputs without the typical performance trade-offs associated with large context windows. The model is trained using a robust, scalable reinforcement learning pipeline that enhances reasoning depth and real-world task alignment. DeepSeek-V4 further strengthens its agent capabilities through a large-scale task synthesis framework that generates structured reasoning examples and tool-interaction demonstrations for post-training refinement. An updated conversational template introduces enhanced tool-calling logic, enabling smoother integration with external systems and APIs. The optional developer role supports advanced orchestration in multi-agent or workflow-based environments. Its architecture is optimized for both academic research and production-grade deployments requiring long-horizon reasoning. By combining computational efficiency with elite reasoning benchmarks, DeepSeek-V4 competes with leading frontier models while remaining open and extensible. The model is particularly well suited for applications involving autonomous agents, tool-augmented reasoning, and structured decision-making tasks. DeepSeek-V4 demonstrates how open models can achieve cutting-edge performance through architectural innovation and scalable training strategies.