Normalized X post
Cursor: Claude Opus 5 is now available in Cursor!
A public X post from Cursor with a linked primary source flags 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 R...
Signal contract
A public X post from Cursor with a linked primary source flags 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 R...
Source ledger
Publishable sources attached to this record.
| # | Source | Role | Public status |
|---|---|---|---|
| 1 | x.comsource | primary receipt | source_urls |
| 2 | cursor.comsource | supporting receipt | source_urls |
Observation
A public X post from Cursor with a linked primary source flags 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 R...
Why it matters
This X-discovered record adds fresh evidence to the agent economics moves to completed work, harness architecture outlives model choice lens and lets the site trend graph move as public product and research signals arrive.
Entities
Cursor
Provenance
This public record is an English normalization of an approved X watchlist post. Linked source_urls carry the publishable evidence boundary.