← All comparisons
Claude 4.1 Opus (Non-reasoning) vs Step 3.5 Flash
Anthropic vs StepFun — side-by-side benchmark comparison
| Claude 4.1 Opus (Non-reasoning) | Step 3.5 Flash | |
|---|---|---|
| Intelligence Index | 36.0 | 37.8 |
| Coding Index | — | 31.6 |
| Math Index | — | — |
| Output speed (tok/s) | 44.7 | 167.4 |
| Blended price ($/1M) | $32.81 | $0.15 |
| Time to first token (s) | 1.63s | 0.91s |
| aime | — | — |
| aime 25 | — | — |
| artificial analysis coding index | — | 31.60 |
| artificial analysis intelligence index | 36.00 | 37.80 |
| artificial analysis math index | — | — |
| gpqa | — | 83.1% |
| hle | — | 19.1% |
| ifbench | — | 64.6% |
| lcr | — | 43.0% |
| livecodebench | — | — |
| math 500 | — | — |
| mmlu pro | — | — |
| scicode | — | 40.4% |
| tau2 | — | 94.4% |
| terminalbench hard | — | 27.3% |
Benchmark data from Artificial Analysis.