Claude Opus 5.5 (Max, Default Fallback) vs Kimi K3.1 Pro
Claude Opus 5.5 (Max, Default Fallback) scores 59.1 on the Artificial Analysis Intelligence Index, against 46.5 for Kimi K3.1 Pro. Kimi K3.1 Pro costs $4 per million tokens (3:1 blend), against $8 for Claude Opus 5.5 (Max, Default Fallback). Claude Opus 5.5 (Max, Default Fallback) generates 94.6 t/s, against 28.8 t/s for Kimi K3.1 Pro. Both accept a context of 1M tokens.
Comparison generated from the catalogue data. Add or remove models below to refine it.
2 models compared
- Kimi K3.1 Pro
Moonshot AI
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | Kimi K3.1 Pro Moonshot AI | Add a model · 2/4 | |
|---|---|---|---|
| Intelligence | Best: 59.1 | 46.5 | |
| Cyber Index | 28.7% | Best: 64.1% | |
| Speed | Best: 94.6 t/s | 28.8 t/s | |
| TTFT | 645 s | Best: 3.23 s | |
| Input · $ / 1M tokens | $4×2 relative to the lowest price among the compared models | Best: $2 | |
| Output · $ / 1M tokens | $20×2 relative to the lowest price among the compared models | Best: $10 | |
| Context window | 1M | 1M | |
| Reasoning | Yes | Yes | |
| Open weights | Yes | No | |
| Cost / task | $10.04×2.7 relative to the lowest price among the compared models | Best: $3.68 |
Intelligence
- Claude Opus 5.5 (Max, Default Fallback)
- Best: 59.1
- Kimi K3.1 Pro
- 46.5
Cyber Index
- Claude Opus 5.5 (Max, Default Fallback)
- 28.7%
- Kimi K3.1 Pro
- Best: 64.1%
Speed
- Claude Opus 5.5 (Max, Default Fallback)
- Best: 94.6 t/s
- Kimi K3.1 Pro
- 28.8 t/s
TTFT
- Claude Opus 5.5 (Max, Default Fallback)
- 645 s
- Kimi K3.1 Pro
- Best: 3.23 s
Input · $ / 1M tokens
- Claude Opus 5.5 (Max, Default Fallback)
- $4×2 relative to the lowest price among the compared models
- Kimi K3.1 Pro
- Best: $2
Output · $ / 1M tokens
- Claude Opus 5.5 (Max, Default Fallback)
- $20×2 relative to the lowest price among the compared models
- Kimi K3.1 Pro
- Best: $10
Context window
- Claude Opus 5.5 (Max, Default Fallback)
- 1M
- Kimi K3.1 Pro
- 1M
Reasoning
- Claude Opus 5.5 (Max, Default Fallback)
- Yes
- Kimi K3.1 Pro
- Yes
Open weights
- Claude Opus 5.5 (Max, Default Fallback)
- Yes
- Kimi K3.1 Pro
- No
Cost / task
- Claude Opus 5.5 (Max, Default Fallback)
- $10.04×2.7 relative to the lowest price among the compared models
- Kimi K3.1 Pro
- Best: $3.68
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
- Kimi K3.1 Pro46.5 · $3.68