Model Comparator
Compare up to four models using the same criteria.
2 models compared
- GPT-5.2 Codex (Xhigh)
OpenAI
- Step 5 Preview
StepFun
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | GPT-5.2 Codex (Xhigh) OpenAI | Step 5 Preview StepFun | Add a model · 2/4 |
|---|---|---|---|
| Intelligence | 28.5 | 28.5 | |
| Cyber Index | — | 47.7% | |
| Speed | 104 t/s | Best: 139 t/s | |
| TTFT | 178 s | Best: 0.91 s | |
| Input · $ / 1M tokens | $1.75×1.8 relative to the lowest price among the compared models | Best: $1 | |
| Output · $ / 1M tokens | $14×5.2 relative to the lowest price among the compared models | Best: $2.70 | |
| Context window | 1M | 1M | |
| Reasoning | Yes | Yes | |
| Open weights | No | Yes | |
| Cost / task | — | $2.35 |
Intelligence
- GPT-5.2 Codex (Xhigh)
- 28.5
- Step 5 Preview
- 28.5
Cyber Index
- GPT-5.2 Codex (Xhigh)
- —
- Step 5 Preview
- 47.7%
Speed
- GPT-5.2 Codex (Xhigh)
- 104 t/s
- Step 5 Preview
- Best: 139 t/s
TTFT
- GPT-5.2 Codex (Xhigh)
- 178 s
- Step 5 Preview
- Best: 0.91 s
Input · $ / 1M tokens
- GPT-5.2 Codex (Xhigh)
- $1.75×1.8 relative to the lowest price among the compared models
- Step 5 Preview
- Best: $1
Output · $ / 1M tokens
- GPT-5.2 Codex (Xhigh)
- $14×5.2 relative to the lowest price among the compared models
- Step 5 Preview
- Best: $2.70
Context window
- GPT-5.2 Codex (Xhigh)
- 1M
- Step 5 Preview
- 1M
Reasoning
- GPT-5.2 Codex (Xhigh)
- Yes
- Step 5 Preview
- Yes
Open weights
- GPT-5.2 Codex (Xhigh)
- No
- Step 5 Preview
- Yes
Cost / task
- GPT-5.2 Codex (Xhigh)
- —
- Step 5 Preview
- $2.35
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 Codex (Xhigh)28.5 · $4.81
- Step 5 Preview28.5 · $1.43