DeepSeek-V4.1-Flash-20261017 (Max) by @deepseek_ai landed in the Arena as the #1 open model in both the Agent Arena and the Code Arena: WebDev!
See 3D world generations from this model by @petergostev, and find more details on its ranking in thread.
https://www.youtube.com/watch?v=cfwsrShJusQ