Model Comparator

Compare up to four models using the same criteria.

GPT-6.1 Terra (Xhigh)
OpenAI
Grok 4.6 (High)
SpaceXSI

Differences only

✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.

Model Comparator
Metrics	GPT-6.1 Terra (Xhigh) OpenAI	Grok 4.6 (High) SpaceXSI
Intelligence	Best: 45.3	44.3
Coding	—	76.8
Agentic	—	53
Speed	Best: 93.5 t/s	66.5 t/s
TTFT	67 s	Best: 37 s
Input · $ / 1M tokens	Best: $1	$2×2 relative to the lowest price among the compared models
Output · $ / 1M tokens	Best: $5	$6×1.2 relative to the lowest price among the compared models
Context window	1M	1M
Reasoning	Yes	Yes
Open weights	No	No
Cost / task	Best: $0.401	$1.48×3.7 relative to the lowest price among the compared models

Intelligence

GPT-6.1 Terra (Xhigh): Best: 45.3
Grok 4.6 (High): 44.3

Coding

GPT-6.1 Terra (Xhigh): —
Grok 4.6 (High): 76.8

Agentic

GPT-6.1 Terra (Xhigh): —
Grok 4.6 (High): 53

Speed

GPT-6.1 Terra (Xhigh): Best: 93.5 t/s
Grok 4.6 (High): 66.5 t/s

TTFT

GPT-6.1 Terra (Xhigh): 67 s
Grok 4.6 (High): Best: 37 s

Input · $ / 1M tokens

GPT-6.1 Terra (Xhigh): Best: $1
Grok 4.6 (High): $2×2 relative to the lowest price among the compared models

Output · $ / 1M tokens

GPT-6.1 Terra (Xhigh): Best: $5
Grok 4.6 (High): $6×1.2 relative to the lowest price among the compared models

Context window

GPT-6.1 Terra (Xhigh): 1M
Grok 4.6 (High): 1M

Reasoning

GPT-6.1 Terra (Xhigh): Yes
Grok 4.6 (High): Yes

Open weights

GPT-6.1 Terra (Xhigh): No
Grok 4.6 (High): No

Cost / task

GPT-6.1 Terra (Xhigh): Best: $0.401
Grok 4.6 (High): $1.48×3.7 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 (Xhigh)45.3 · $0.401
Grok 4.6 (High)44.3 · $1.48