Model Comparator
Compare up to four models using the same criteria.
2 models compared
- GPT-6.1 Terra (Medium)
OpenAI
- GPT-5.5 (Xhigh)
OpenAI
✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.
| Metrics | GPT-6.1 Terra (Medium) OpenAI | GPT-5.5 (Xhigh) OpenAI | Add a model · 2/4 |
|---|---|---|---|
| Intelligence | 38.2 | Best: 38.4 | |
| Coding | — | 74.9 | |
| Agentic | — | 36.4 | |
| Speed | Best: 87.7 t/s | 75.5 t/s | |
| TTFT | Best: 3.92 s | 51.8 s | |
| Input · $ / 1M tokens | Best: $1 | $5×5 relative to the lowest price among the compared models | |
| Output · $ / 1M tokens | Best: $5 | $30×6 relative to the lowest price among the compared models | |
| Context window | 1M | 1M | |
| Reasoning | Yes | Yes | |
| Open weights | No | No | |
| Cost / task | Best: $0.169 | $2.10×12.4 relative to the lowest price among the compared models |
Intelligence
- GPT-6.1 Terra (Medium)
- 38.2
- GPT-5.5 (Xhigh)
- Best: 38.4
Coding
- GPT-6.1 Terra (Medium)
- —
- GPT-5.5 (Xhigh)
- 74.9
Agentic
- GPT-6.1 Terra (Medium)
- —
- GPT-5.5 (Xhigh)
- 36.4
Speed
- GPT-6.1 Terra (Medium)
- Best: 87.7 t/s
- GPT-5.5 (Xhigh)
- 75.5 t/s
TTFT
- GPT-6.1 Terra (Medium)
- Best: 3.92 s
- GPT-5.5 (Xhigh)
- 51.8 s
Input · $ / 1M tokens
- GPT-6.1 Terra (Medium)
- Best: $1
- GPT-5.5 (Xhigh)
- $5×5 relative to the lowest price among the compared models
Output · $ / 1M tokens
- GPT-6.1 Terra (Medium)
- Best: $5
- GPT-5.5 (Xhigh)
- $30×6 relative to the lowest price among the compared models
Context window
- GPT-6.1 Terra (Medium)
- 1M
- GPT-5.5 (Xhigh)
- 1M
Reasoning
- GPT-6.1 Terra (Medium)
- Yes
- GPT-5.5 (Xhigh)
- Yes
Open weights
- GPT-6.1 Terra (Medium)
- No
- GPT-5.5 (Xhigh)
- No
Cost / task
- GPT-6.1 Terra (Medium)
- Best: $0.169
- GPT-5.5 (Xhigh)
- $2.10×12.4 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-6.1 Terra (Medium)38.2 · $0.169
- GPT-5.5 (Xhigh)38.4 · $2.10