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.
GPT-5.6 SolStep 3.5 Flash
| GPT-5.6 Sol OpenAI | Step 3.5 Flash Stepfun | |
|---|---|---|
| Pricing | ||
| Input $/1M | $5.00 | $0.10 |
| Output $/1M | $30.00 | $0.30 |
| Blended $/1M (3:1) | $11.25 | $0.15 |
| Cache read $/1M | $0.50 | — |
| Cache write $/1M | $6.25 | — |
| Quality indices | ||
| Intelligence Index | 58.9 | 26 |
| Coding Index | 77.4 | — |
| Math Index | — | — |
| Agentic Index | 54 | — |
| Speed & latency | ||
| Output speed (tok/s) | 70 | 298 |
| Time to first token | 112.90s | 0.74s |
| Time to first answer token | 112.90s | 7.45s |
| Benchmarks (Artificial Analysis) | ||
| GPQA Diamond | 94.1% | 82.6% |
| Humanity's Last Exam | 47.2% | 22.6% |
| SciCode | 56.1% | 38.5% |
| IFBench | 72.7% | 66.5% |
| AA-LCR (Long Context Reasoning) | 73.7% | 54.3% |
| Terminal-Bench Hard | 65.9% | 32.6% |
| Terminal-Bench 2.1 | 88.0% | — |
| τ²-Bench (Telecom) | 85.1% | 87.4% |
| τ³-Bench Banking | 33.0% | — |
| Specs | ||
| Context window | 1.05M | 262K |
| Max output tokens | 128K | 66K |
| Input modalities | file, image, text | text |
| Tokenizer | GPT | Other |