Claude Opus 5 available on Cursor, cheaper alternative to Fable 5

Claude Opus 5 is now available on the Cursor platform; the model achieves the same score as Fable 5 on CursorBench (66.7 vs. 66.5 with default effort) while costing roughly half as much. It is also compatible with the Zero Data Retention setting, which is a significant advantage for privacy.