Model Comparator
Compare up to four models using the same criteria.
2 models compared
- Step 3.5 Flash
StepFun
- Claude 4 Opus (Non-reasoning)
Anthropic
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | Step 3.5 Flash StepFun | Claude 4 Opus (Non-reasoning) Anthropic | Add a model · 2/4 |
|---|---|---|---|
| Intelligence | 16.6 | 16.6 | |
| Math | — | 36.3 | |
| Speed | 127 t/s | — | |
| TTFT | 3.31 s | — | |
| Input · $ / 1M tokens | Best: $0.10 | $15×150 relative to the lowest price among the compared models | |
| Output · $ / 1M tokens | Best: $0.30 | $75×250 relative to the lowest price among the compared models | |
| Context window | Best: 256K | 200K | |
| Reasoning | Yes | No | |
| Open weights | Yes | No |
Intelligence
- Step 3.5 Flash
- 16.6
- Claude 4 Opus (Non-reasoning)
- 16.6
Math
- Step 3.5 Flash
- —
- Claude 4 Opus (Non-reasoning)
- 36.3
Speed
- Step 3.5 Flash
- 127 t/s
- Claude 4 Opus (Non-reasoning)
- —
TTFT
- Step 3.5 Flash
- 3.31 s
- Claude 4 Opus (Non-reasoning)
- —
Input · $ / 1M tokens
- Step 3.5 Flash
- Best: $0.10
- Claude 4 Opus (Non-reasoning)
- $15×150 relative to the lowest price among the compared models
Output · $ / 1M tokens
- Step 3.5 Flash
- Best: $0.30
- Claude 4 Opus (Non-reasoning)
- $75×250 relative to the lowest price among the compared models
Context window
- Step 3.5 Flash
- Best: 256K
- Claude 4 Opus (Non-reasoning)
- 200K
Reasoning
- Step 3.5 Flash
- Yes
- Claude 4 Opus (Non-reasoning)
- No
Open weights
- Step 3.5 Flash
- Yes
- Claude 4 Opus (Non-reasoning)
- No
Each reasoning level remains a separate configuration.
Score and cost
Each line joins the reasoning levels of a compared model; the large point marks the configuration in the table. The top-right corner holds the best score for the lowest cost. Select another point to compare that level.
- Step 3.5 Flash16.6 · $0.15
- Claude 4 Opus (Non-reasoning)16.6 · $30