Claude Opus 5.5 (Max, Default Fallback) vs Step 5 Preview
Claude Opus 5.5 (Max, Default Fallback) scores 59.1 on the Artificial Analysis Intelligence Index, against 28.5 for Step 5 Preview. Step 5 Preview costs $1.43 per million tokens (3:1 blend), against $8 for Claude Opus 5.5 (Max, Default Fallback). Step 5 Preview generates 140 t/s, against 95 t/s for Claude Opus 5.5 (Max, Default Fallback). Both accept a context of 1M tokens.
Comparison generated from the catalogue data. Add or remove models below to refine it.
2 models compared
- Step 5 Preview
StepFun
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | Step 5 Preview StepFun | Add a model · 2/4 | |
|---|---|---|---|
| Intelligence | Best: 59.1 | 28.5 | |
| Cyber Index | 28.7% | Best: 47.7% | |
| Speed | 95 t/s | Best: 140 t/s | |
| TTFT | 643 s | Best: 0.91 s | |
| Input · $ / 1M tokens | $4×4 relative to the lowest price among the compared models | Best: $1 | |
| Output · $ / 1M tokens | $20×7.4 relative to the lowest price among the compared models | Best: $2.70 | |
| Context window | 1M | 1M | |
| Reasoning | Yes | Yes | |
| Open weights | Yes | Yes | |
| Cost / task | $10.04×4.3 relative to the lowest price among the compared models | Best: $2.35 |
Intelligence
- Claude Opus 5.5 (Max, Default Fallback)
- Best: 59.1
- Step 5 Preview
- 28.5
Cyber Index
- Claude Opus 5.5 (Max, Default Fallback)
- 28.7%
- Step 5 Preview
- Best: 47.7%
Speed
- Claude Opus 5.5 (Max, Default Fallback)
- 95 t/s
- Step 5 Preview
- Best: 140 t/s
TTFT
- Claude Opus 5.5 (Max, Default Fallback)
- 643 s
- Step 5 Preview
- Best: 0.91 s
Input · $ / 1M tokens
- Claude Opus 5.5 (Max, Default Fallback)
- $4×4 relative to the lowest price among the compared models
- Step 5 Preview
- Best: $1
Output · $ / 1M tokens
- Claude Opus 5.5 (Max, Default Fallback)
- $20×7.4 relative to the lowest price among the compared models
- Step 5 Preview
- Best: $2.70
Context window
- Claude Opus 5.5 (Max, Default Fallback)
- 1M
- Step 5 Preview
- 1M
Reasoning
- Claude Opus 5.5 (Max, Default Fallback)
- Yes
- Step 5 Preview
- Yes
Open weights
- Claude Opus 5.5 (Max, Default Fallback)
- Yes
- Step 5 Preview
- Yes
Cost / task
- Claude Opus 5.5 (Max, Default Fallback)
- $10.04×4.3 relative to the lowest price among the compared models
- Step 5 Preview
- Best: $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.
- Claude Opus 5.5 (Max, Default Fallback)59.1 · $10.04
- Step 5 Preview28.5 · $2.35