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Tools2026-08-09 · source-backed
Cursor's August 6 post details a two-stage router: "Compass" assigns each turn a 0–1 complexity score by predicting whether the user will be satisfied, then a taxonomy across domains (backend, frontend, database), tasks (bug fixes, commands, tests), and modifiers (visual changes, product questions) picks the model. The pool assigns Grok as cost-efficient baseline, Sol for planning and codebase comprehension, Opus for execution-heavy and DevOps, Fable for debugging and visual implementation, with Opus 5 recently added. Claims: Auto Intelligence delivers above-Fable satisfaction at 68% lower cost, Auto Balance outperforms Opus 4.8 at 41% lower cost, Compass hits 96% positive signal on highest-confidence tasks versus 71% on lowest. Read it as a blueprint. Predicting satisfaction rather than difficulty is the part I hadn't considered.
Each link below shares sources, entities, or timing with this story.
Cursor uses Opus / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Cursor uses Opus); both cover Cursor, Fable, Grok, Opus; overlapping topics (cost, opus, task).
Claude Code uses Opus / Shared entities / Shared topic / Earlier coverage / Tension
Linked by a graph relationship (Claude Code uses Opus); both cover Cursor, Grok, Opus; overlapping topics (cost, opus, task).
Cursor uses Opus / Shared entities / Earlier coverage / Tension
Linked by a graph relationship (Cursor uses Opus); both cover Cursor, Fable, Grok, Opus; earlier Cursor coverage from 2026-07-09.
Linked by a graph relationship (Cursor uses Opus); both cover Cursor, Grok, Opus; earlier Cursor coverage from 2026-07-15.
Cursor uses Fable / Shared entities / Earlier coverage / Tension
Linked by a graph relationship (Cursor uses Fable); both cover Fable, Grok, Opus; earlier Fable coverage from 2026-07-13.
Cursor uses Opus / Shared entities / Earlier coverage / Tension
Linked by a graph relationship (Cursor uses Opus); both cover Cursor, Grok, Opus; earlier Cursor coverage from 2026-07-10.
Cursor uses Opus / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Cursor uses Opus); both cover Cursor, Opus; reported by the same outlet (cursor.com).
Claude Code uses Opus / Shared entities / Same source domain / Shared topic / Earlier coverage
Linked by a graph relationship (Claude Code uses Opus); both cover Cursor, Opus; reported by the same outlet (cursor.com).