Claude Sonnet 5.5 (High) announced for a 48-hour test in Arena’s Direct Mode starting September 30
Arena said the Direct Mode test would start at 8 a.m. PT, with the model selectable from a dropdown menu. It said the model was already available in Battle and Agent modes.
TLDR
Arena announced that Anthropic’s Claude Sonnet 5.5 (High) would be available to test in Direct Mode for 48 hours starting September 30 at 8 a.m. PT. Arena said it was already available in Battle and Agent modes and would remain there after the Direct Mode window.
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