Model Comparator
Compare up to four models using the same criteria.
2 models compared
- GPT-5.2 (Non-reasoning)
OpenAI
- Step 3.5 Flash 2603
StepFun
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | GPT-5.2 (Non-reasoning) OpenAI | Step 3.5 Flash 2603 StepFun | Add a model · 2/4 |
|---|---|---|---|
| Intelligence | 17 | 17 | |
| Math | 51 | — | |
| Speed | 69.3 t/s | Best: 142 t/s | |
| TTFT | Best: 0.8 s | 3.33 s | |
| Input · $ / 1M tokens | $1.75×17.5 relative to the lowest price among the compared models | Best: $0.10 | |
| Output · $ / 1M tokens | $14×46.7 relative to the lowest price among the compared models | Best: $0.30 | |
| Context window | Best: 400K | 256K | |
| Reasoning | No | Yes | |
| Open weights | No | No |
Intelligence
- GPT-5.2 (Non-reasoning)
- 17
- Step 3.5 Flash 2603
- 17
Math
- GPT-5.2 (Non-reasoning)
- 51
- Step 3.5 Flash 2603
- —
Speed
- GPT-5.2 (Non-reasoning)
- 69.3 t/s
- Step 3.5 Flash 2603
- Best: 142 t/s
TTFT
- GPT-5.2 (Non-reasoning)
- Best: 0.8 s
- Step 3.5 Flash 2603
- 3.33 s
Input · $ / 1M tokens
- GPT-5.2 (Non-reasoning)
- $1.75×17.5 relative to the lowest price among the compared models
- Step 3.5 Flash 2603
- Best: $0.10
Output · $ / 1M tokens
- GPT-5.2 (Non-reasoning)
- $14×46.7 relative to the lowest price among the compared models
- Step 3.5 Flash 2603
- Best: $0.30
Context window
- GPT-5.2 (Non-reasoning)
- Best: 400K
- Step 3.5 Flash 2603
- 256K
Reasoning
- GPT-5.2 (Non-reasoning)
- No
- Step 3.5 Flash 2603
- Yes
Open weights
- GPT-5.2 (Non-reasoning)
- No
- Step 3.5 Flash 2603
- 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.
- GPT-5.2 (Non-reasoning)17 · $4.81
- Step 3.5 Flash 260317 · $0.15