DeepSeek V4 Is Open Source and Beats GPT-5 on Code. Here's What We Found After 48 Hours of Testing

DeepSeek just dropped V4 — and this time, it's not just another incremental update. V4 Pro packs 1.6 trillion parameters (49B active), runs on a 1-million-token context window, and is fully open source. We at Gerus-lab spent the last 48 hours stress-...