DeepSeek Just Dropped V4. Here's What the Benchmarks Actually Tell You.

Open-source AI has spent two years being "almost there." With DeepSeek-V4-Pro, the gap with frontier closed-source models isn't almost closed — in some benchmarks, it's gone. The Problem It's Solving The standard narrative has been simple: closed-source models from OpenAI, Google, and Anthropic sit at the frontier. Open-source models follow, months behind, at a fraction of the cost but with a meaningful capability tax. You pay in quality for what you save in dollars. DeepSeek-V4-Pro-Max — the ma