Compare models
Pick up to 4 models for a side-by-side spec sheet. Hover any dotted metric name for what the test measures. Best value in each row is highlighted.
Claude Haiku 4.5Step 3.7 Flash
| Claude Haiku 4.5 Anthropic | Step 3.7 Flash Stepfun | |
|---|---|---|
| Pricing | ||
| Input $/1M | $1.00 | $0.20 |
| Output $/1M | $5.00 | $1.15 |
| Blended $/1M (3:1) | $2.00 | $0.438 |
| Cache read $/1M | $0.10 | $0.04 |
| Cache write $/1M | $1.25 | — |
| Quality indices | ||
| Intelligence Index | 29.6 | 30.3 |
| Coding Index | 43.9 | 39.6 |
| Math Index | — | — |
| Agentic Index | 16.4 | 21.5 |
| Speed & latency | ||
| Output speed (tok/s) | — | 401 |
| Time to first token | — | 0.72s |
| Time to first answer token | — | 5.71s |
| Benchmarks (Artificial Analysis) | ||
| GPQA Diamond | — | 80.9% |
| Humanity's Last Exam | — | 19.9% |
| SciCode | — | 40.0% |
| IFBench | — | 67.3% |
| AA-LCR (Long Context Reasoning) | — | 63.7% |
| Terminal-Bench Hard | — | 35.6% |
| Terminal-Bench 2.1 | — | 39.3% |
| τ²-Bench (Telecom) | — | 98.5% |
| τ³-Bench Banking | — | 11.3% |
| Design Arena (Elo) | ||
| Website | 1,149 | 1,210 |
| UI components | 1,142 | 1,201 |
| Data viz | 1,160 | 1,200 |
| SVG | 1,072 | 1,121 |
| 3D | 1,131 | 1,178 |
| Game dev | 1,155 | 1,200 |
| Code categories | 1,148 | 1,201 |
| ASCII art | 1,182 | 1,204 |
| Specs | ||
| Context window | 200K | 262K |
| Max output tokens | 64K | 256K |
| Input modalities | text, image, file | text, image, video |
| Tokenizer | Claude | Other |