claude-fable-5 vs composer-2.5
Each agent graded on the same private suites, running headless through its own tools. Advantages are oriented so a win is a win, whichever way the metric runs.
| Dimension | claude-fable-5 | composer-2.5 | Advantage |
|---|---|---|---|
| Capability | 60% | 57% | +3% (claude-fable-5 leads) |
| Median task time | 3m 12s | 1m 30s | 1m 42s faster (composer-2.5 leads) |
| Approx. task cost | $0.031 / task | $0.023 / task | $0.008 / task lower (composer-2.5 leads) |
claude-fable-5: 34.0% of Claude Max 20x (34.0% / 5h, 5.0% / 1w) per run. composer-2.5: 1.8% of Cursor Pro (1.8% / 1m) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
Work per window: claude-fable-5 430 vs composer-2.5 57 suite runs per month (claude-fable-5 leads); per plan-dollar: 2.15 vs 2.84 (composer-2.5 leads). Work figures compare outputs, so unlike quota shares they are comparable across plans.
| Dimension | claude-fable-5 | composer-2.5 | Advantage |
|---|---|---|---|
| Capability | 64% | 51% | +14% (claude-fable-5 leads) |
| Median task time | 5m 54s | 4m 30s | 1m 24s faster (composer-2.5 leads) |
| Approx. task cost | $0.041 / task | $0.029 / task | $0.012 / task lower (composer-2.5 leads) |
claude-fable-5: 12.0% of Claude Max 20x (12.0% / 5h, 1.0% / 1w) per run. composer-2.5: 0.6% of Cursor Pro (0.6% / 1m) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
Work per window: claude-fable-5 1218 vs composer-2.5 173 suite runs per month (claude-fable-5 leads); per plan-dollar: 6.09 vs 8.66 (composer-2.5 leads). Work figures compare outputs, so unlike quota shares they are comparable across plans.
| Dimension | claude-fable-5 | composer-2.5 | Advantage |
|---|---|---|---|
| Capability | 69% | 37% | +32% (claude-fable-5 leads) |
| Median task time | 5m 25s | 1m 51s | 3m 34s faster (composer-2.5 leads) |
| Approx. task cost | $0.038 / task | $0.024 / task | $0.014 / task lower (composer-2.5 leads) |
claude-fable-5: 2.8% of Claude Max 20x (2.8% / 5h, 0.6% / 1w) per good solve. composer-2.5: 0.1% of Cursor Pro (0.1% / 1m) per good solve. Each figure is a share of that agent's own plan, so there is no delta to draw.
Work per window: claude-fable-5 5218 vs composer-2.5 822 good solves per month (claude-fable-5 leads); per plan-dollar: 26.09 vs 41.11 (composer-2.5 leads). Work figures compare outputs, so unlike quota shares they are comparable across plans.
Grades and deltas are comparable only within a suite version. See methodology.
Frequently asked questions
Which is better for coding, claude-fable-5 or composer-2.5?
claude-fable-5 clears higher: tier 4 of 5 versus tier 2 for composer-2.5 on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-17.
Which gives more work per dollar, claude-fable-5 or composer-2.5?
composer-2.5 delivers more benchmark work per subscription dollar: 2.84 suite runs per plan-dollar versus 2.15 for claude-fable-5 (at $20/month priced 2026-07-20, and $200/month priced 2026-08-05). Work figures compare outputs, so unlike raw quota shares they are comparable across plans.
How much do claude-fable-5 and composer-2.5 cost?
claude-fable-5 runs on Claude Max 20x at $200/month (public price as of 2026-08-05). composer-2.5 runs on Cursor Pro at $20/month (public price as of 2026-07-20).