Claude Opus 5 is now available in Cursor!
It matches Fable 5 on CursorBench (66.7 vs 66.5 at default effort) at half the price. Unlike Fable, it's also compatible with Zero Data Retention.
Cursor presented Claude Opus 5 as a lower-priced option with similar performance on its own coding benchmarkA standard public test set for comparing AI models — the shared scoreboards behind every "model X beats model Y" claim.Full definition →. Its July 24, 2026 announcement reported CursorBench scores of 66.7 for Opus 5 and 66.5 for Fable 5 at default effort, with Opus offered at half the price.
Those nearly equal scores support Cursor's stated price-performance comparison within that evalA repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.Full definition →. They give users a reason to compare the models on their own work, rather than interpreting the 0.2-point difference as a meaningful general lead.
Terms in this piece · Glossary
benchmark — A standard public test set for comparing AI models — the shared scoreboards behind every "model X beats model Y" claim.
eval — A repeatable test for AI quality — a set of tasks plus scoring — used the way software teams use test suites, because model output is too variable to judge by eyeballing.
