Cursor's Composer "Fast" is a serving tier (lower latency, higher cost, same
model intelligence) — not a reasoning-effort level. Drop the Fast/effort framing
entirely: effort is Default, notes just state a plain one-shot Composer 2.5 run.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The Cursor "Fast" run was registered as label "Composer 2.5 Fast" with effort
"Max" — contradictory, and it baked the speed mode into the model name. Per the
model x harness x effort convention (cf. the Grok Build TUI entry), the label is
just "Composer 2.5" and Fast is the effort, so it sits next to the Cursor · Max
entry as a thinking-budget comparison. Fixed the run notes to match, and synced
both README registry tables (which had also missed the Cursor · High Claude
Fable 5 entry from the prior merge).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jesse Zhang