claude-haiku-4-5 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-haiku-4-5 | composer-2.5 | Advantage |
|---|---|---|---|
| Capability | 28% | 60% | +32% (composer-2.5 leads) |
| Median task time | 3m 31s | 3m 52s | 21s faster (claude-haiku-4-5 leads) |
| Approx. task cost | $0.003 / task | $0.025 / task | $0.022 / task lower (claude-haiku-4-5 leads) |
claude-haiku-4-5: 3.0% of Claude Max 20x (3.0% / 5h, 1.0% / 1w) per run. composer-2.5: 1.9% of Cursor Pro (1.9% / 1m) per run. Each figure is a share of that agent's own plan, so there is no delta to draw.
| Dimension | claude-haiku-4-5 | composer-2.5 | Advantage |
|---|---|---|---|
| Capability | 23% | 52% | +28% (composer-2.5 leads) |
| Median task time | 3m 50s | 4m 56s | 1m 6s faster (claude-haiku-4-5 leads) |
| Approx. task cost | $0.007 / task | $0.025 / task | $0.018 / task lower (claude-haiku-4-5 leads) |
claude-haiku-4-5: 0.5% of Claude Max 20x (0.5% / 5h) 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.
Grades and deltas are comparable only within a suite version. See methodology.
Frequently asked questions
Which is better for coding, claude-haiku-4-5 or composer-2.5?
composer-2.5 clears higher: tier 4 of 5 versus tier 1 for claude-haiku-4-5 on real-world@v3, our private suite of real-world coding problems. Latest measurement 2026-08-10.
How much do claude-haiku-4-5 and composer-2.5 cost?
claude-haiku-4-5 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).