deepseek Blog
How to Set Up LibreChat with CometAPI
Learn how to connect LibreChat to 500+ AI models using CometAPI. Configure the OpenAI-compatible endpoint to access GPT 5.5, Claude 4-7, and DeepSeek V4.
How to Connect Open WebUI to AI models using CometAPI
Learn how to connect Open WebUI to 500+ AI models using CometAPI. Configure the OpenAI-compatible gateway to save 20-40% on production API costs.
Top 2026 Models: Intelligence, Speed, and Pricing Analysis
Explore the definitive 2026 AI benchmarks. Compare GPT-5.5, Claude Opus 4.7, and DeepSeek V4 Pro on intelligence, context windows, and cost optimization.
DeepSeek V4 vs GPT-5.5: Benchmarks, Pricing, Use Cases & Expert Recommendations
DeepSeek V4 vs GPT-5.5: DeepSeek V4 vs GPT-5.5 in 2026: compare latest official releases, benchmark data, context. Available via CometAPI.
How to Run DeepSeek V4 Locally
The practical way to run DeepSeek V4 locally is to use the official open-source weights with a high-performance serving stack such as vLLM, then expose the model through a local OpenAI-compatible endpoint. DeepSeek’s current public materials describe two models in the V4 family: DeepSeek-V4-Pro at 1.6T total parameters / 49B active, and DeepSeek-V4-Flash at 284B total parameters / 13B active, both with 1M-token context and three reasoning modes. vLLM’s current local deployment examples target 8× B200/B300 for Pro and 4× B200/B300 for Flash. If you do not have that kind of hardware, a hosted fallback like CometAPI is the more practical path.
How to Use Deepseek V4 API
For developers, that combination matters for one simple reason: it lowers migration friction while raising the ceiling on what you can build. You are not learning a brand-new API shape. You are updating the model name, keeping the base URL, and shipping against a larger context window with newer reasoning behavior. DeepSeek’s official docs explicitly say to keep the base URL and change the model parameter to deepseek-v4-pro or deepseek-v4-flash.
Deepseek v4 released: What is and How to Access
DeepSeek-V4 is DeepSeek’s new preview flagship model family, officially launched on April 24, 2026. It includes DeepSeek-V4-Pro and DeepSeek-V4-Flash, both of which support 1 million tokens of context, expose OpenAI-compatible and Anthropic-compatible APIs, and are available on DeepSeek’s app, mobile app, and CometAPI's API. In practical terms, Pro is the higher-capability choice for difficult reasoning and agentic coding, while Flash is the faster, more economical option for high-throughput workloads.
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DeepSeek v4 is now available on the web: How to access and test it
DeepSeek V4 gray-scale test has leaked and is actively rolling out in limited form on the official web platform. Select users now see a redesigned interface with **Fast Mode** (default, high-speed daily use), **Expert Mode** (deep reasoning and complex problem-solving), and **Vision Mode** (multimodal image and video handling). This marks the most significant update since DeepSeek-V3.2, with rumored 1 million token context windows, updated knowledge bases, native multimodal capabilities, and a new underlying architecture optimized for speed, logic, and efficiency.