GPT-6 Luna (Max) vs Claude Opus 5.5 (Max, Default Fallback)
Claude Opus 5.5 (Max, Default Fallback) scores 59.1 on the Artificial Analysis Intelligence Index, against 27.9 for GPT-6 Luna (Max). GPT-6 Luna (Max) costs $0.20 per million tokens (3:1 blend), against $8 for Claude Opus 5.5 (Max, Default Fallback). GPT-6 Luna (Max) generates 113 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
- GPT-6 Luna (Max)
OpenAI
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | GPT-6 Luna (Max) OpenAI | Add a model · 2/4 | |
|---|---|---|---|
| Intelligence | 27.9 | Best: 59.1 | |
| Cyber Index | Best: 52.7% | 28.7% | |
| Speed | Best: 113 t/s | 95 t/s | |
| TTFT | Best: 140 s | 643 s | |
| Input · $ / 1M tokens | Best: $0.10 | $4×40 relative to the lowest price among the compared models | |
| Output · $ / 1M tokens | Best: $0.50 | $20×40 relative to the lowest price among the compared models | |
| Context window | 1M | 1M | |
| Reasoning | Yes | Yes | |
| Open weights | Yes | Yes | |
| Cost / task | Best: $0.152 | $10.04×66 relative to the lowest price among the compared models |
Intelligence
- GPT-6 Luna (Max)
- 27.9
- Claude Opus 5.5 (Max, Default Fallback)
- Best: 59.1
Cyber Index
- GPT-6 Luna (Max)
- Best: 52.7%
- Claude Opus 5.5 (Max, Default Fallback)
- 28.7%
Speed
- GPT-6 Luna (Max)
- Best: 113 t/s
- Claude Opus 5.5 (Max, Default Fallback)
- 95 t/s
TTFT
- GPT-6 Luna (Max)
- Best: 140 s
- Claude Opus 5.5 (Max, Default Fallback)
- 643 s
Input · $ / 1M tokens
- GPT-6 Luna (Max)
- Best: $0.10
- Claude Opus 5.5 (Max, Default Fallback)
- $4×40 relative to the lowest price among the compared models
Output · $ / 1M tokens
- GPT-6 Luna (Max)
- Best: $0.50
- Claude Opus 5.5 (Max, Default Fallback)
- $20×40 relative to the lowest price among the compared models
Context window
- GPT-6 Luna (Max)
- 1M
- Claude Opus 5.5 (Max, Default Fallback)
- 1M
Reasoning
- GPT-6 Luna (Max)
- Yes
- Claude Opus 5.5 (Max, Default Fallback)
- Yes
Open weights
- GPT-6 Luna (Max)
- Yes
- Claude Opus 5.5 (Max, Default Fallback)
- Yes
Cost / task
- GPT-6 Luna (Max)
- Best: $0.152
- Claude Opus 5.5 (Max, Default Fallback)
- $10.04×66 relative to the lowest price among the compared models
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-6 Luna (Max)27.9 · $0.152
- Claude Opus 5.5 (Max, Default Fallback)59.1 · $10.04