deepseek v4 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.
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. DeepSeekโs 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. vLLMโs current local deployment examples target 8ร B200/B300 for Pro and 4ร 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. DeepSeekโs 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 DeepSeekโs 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 DeepSeekโs 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.
DeepSeek Update: what changed, whatโs new, and why it matters
In February 2026, Chinese AI startup DeepSeek rolled out a significant update to its online application and web interface, signaling momentum toward its next-generation model release, DeepSeek V4. While the update comes ahead of the full V4 model, it has already sparked conversation among users and industry watchers for its changes to interaction behavior, long-context capabilities, and preparatory testing for future potential.