GPT 5.5 has gotten a lot of attention in the pasts 24 hours but it’s not the only model that has excited AI enthusiasts. DeepSeek-V4 Pro has officially been announced. This open source model is available in Pro and Flash models. The pro model has 1.6T parameters with 49B active ones. The flash one gives you faster results.
This model has enhanced agentic capabilities. It leads all current open models when it comes to rich world knowledge. It holds up its own against Opus 4.6 Max and GPT 5.4 xHigh. in many benchmarks. DeepSeek V4 can integrate into Claude Code, OpenClaw, and OpenCode. As far as the cost of the API, the prices are pretty reseasonable too:
API is Available Today!
🔹 Keep base_url, just update model to deepseek-v4-pro or deepseek-v4-flash.
🔹 Supports OpenAI ChatCompletions & Anthropic APIs.
🔹 Both models support 1M context & dual modes (Thinking / Non-Thinking): https://t.co/ec3B0BDXZi⚠️ Note: deepseek-chat &… pic.twitter.com/xjOpRzOMAT
— DeepSeek (@deepseek_ai) April 24, 2026
