Model Comparator
Compare up to four models using the same criteria.
2 models compared
- GPT-5.6 Luna (Medium)
OpenAI
- Grok 4.3 (High)
SpaceXSI
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | GPT-5.6 Luna (Medium) OpenAI | Grok 4.3 (High) SpaceXSI | Add a model · 2/4 |
|---|---|---|---|
| Intelligence | Best: 25 | 24.9 | |
| Coding | Best: 50.7 | 42.2 | |
| Agentic | Best: 23.9 | 15.5 | |
| Speed | Best: 122 t/s | 94.6 t/s | |
| TTFT | Best: 2.69 s | 24.8 s | |
| Input · $ / 1M tokens | Best: $0.20 | $1.25×6.3 relative to the lowest price among the compared models | |
| Output · $ / 1M tokens | Best: $1.20 | $2.50×2.1 relative to the lowest price among the compared models | |
| Context window | 1M | 1M | |
| Reasoning | Yes | Yes | |
| Open weights | No | No | |
| Cost / task | Best: $0.0156 | $0.205×13.2 relative to the lowest price among the compared models |
Intelligence
- GPT-5.6 Luna (Medium)
- Best: 25
- Grok 4.3 (High)
- 24.9
Coding
- GPT-5.6 Luna (Medium)
- Best: 50.7
- Grok 4.3 (High)
- 42.2
Agentic
- GPT-5.6 Luna (Medium)
- Best: 23.9
- Grok 4.3 (High)
- 15.5
Speed
- GPT-5.6 Luna (Medium)
- Best: 122 t/s
- Grok 4.3 (High)
- 94.6 t/s
TTFT
- GPT-5.6 Luna (Medium)
- Best: 2.69 s
- Grok 4.3 (High)
- 24.8 s
Input · $ / 1M tokens
- GPT-5.6 Luna (Medium)
- Best: $0.20
- Grok 4.3 (High)
- $1.25×6.3 relative to the lowest price among the compared models
Output · $ / 1M tokens
- GPT-5.6 Luna (Medium)
- Best: $1.20
- Grok 4.3 (High)
- $2.50×2.1 relative to the lowest price among the compared models
Context window
- GPT-5.6 Luna (Medium)
- 1M
- Grok 4.3 (High)
- 1M
Reasoning
- GPT-5.6 Luna (Medium)
- Yes
- Grok 4.3 (High)
- Yes
Open weights
- GPT-5.6 Luna (Medium)
- No
- Grok 4.3 (High)
- No
Cost / task
- GPT-5.6 Luna (Medium)
- Best: $0.0156
- Grok 4.3 (High)
- $0.205×13.2 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-5.6 Luna (Medium)25 · $0.0156
- Grok 4.3 (High)24.9 · $0.205