#text-arena

Arena.ai ranks Claude Opus 5.5 (High) No. 1 in Text Arena at 1,509 points

Arena.ai says Claude Opus 5.5 (High) leads Text Arena with 1,509 points, 18 above Opus 5 (High) and 4 above second-place Opus 4.6 (High). It also says Anthropic holds all six top spots and that Opus 5.5 (High) is on the Pareto frontier at a blended $16 per million tokens.

Arena.ai says Claude Opus 5.5 is easier to read than Opus 5 but writes longer answers

Arena.ai compared high-reasoning Text Arena outputs and says 10 of 12 writing measures moved in a better direction from Claude Opus 5 to Opus 5.5. Average answers grew from 453 to 481 words, while hedges such as “perhaps” rose 97%.