DeepSeek is back — DeepSeek V4 just landed #2 open-weight on the Vals Index, narrowly trailing Kimi K2.6 by 0.07%. All rankings below are among open-weight models.

• The model performs extremely well on coding: #1 open-weight on Vibe Code Bench by a significant margin, #1 open-weight on SWE-bench Verified, #1 open-weight on IOI, and #2 open-weight on Terminal-Bench 2.0.
• Podium finishes across other domains among open-weight models: #1 on Finance Agent, #1 on GPQA Diamond, #2 on MedCode, #3 on LiveCodeBench, and #3 on ProofBench.
• Open-weight models are closing the gap fast — DeepSeek’s first release since December 2025 comes in fighting for the top tier, outperforming closed-weight systems like Gemini 3.1 Pro Preview (02/26) on several evals.

The model has a 1M-token context window, and was run with temp=1, top_p = 0.95, 256k max output tokens, and max reasoning effort via the DeepSeek native API.