#direct-mode

Claude Sonnet 5.5 (High) opens in Arena Direct Mode for 48 hours

Starting September 30 at 8am PT, Arena.ai will make Anthropic’s Claude Sonnet 5.5 available for direct testing. Claude Sonnet 5.5 (High) stays in Direct Mode for 48 hours and remains in Battle and Agent Mode afterward.

Arena.ai opens GPT-6 Sol (Medium) in Direct Mode through Sept. 29 at 9am PT

OpenAI’s GPT-6 Sol (Medium) can be selected in Arena Direct Mode for the next 24 hours, through Sept. 29 at 9am PT. Arena.ai says it will remain available in Battle and Agent Mode after that window.