Model Comparator

Compare up to four models using the same criteria.

GPT-5.6 Terra (Low)
OpenAI
Grok Build 0.1 0616
SpaceXSI

Differences only

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

Model Comparator
Metrics	GPT-5.6 Terra (Low) OpenAI	Grok Build 0.1 0616 SpaceXSI
Intelligence	Best: 27.5	27.2
Coding	Best: 58.1	51.5
Agentic	25.9	—
Speed	Best: 93.2 t/s	67.4 t/s
TTFT	Best: 1.53 s	1.76 s
Input · $ / 1M tokens	$2×2 relative to the lowest price among the compared models	Best: $1
Output · $ / 1M tokens	$12×6 relative to the lowest price among the compared models	Best: $2
Context window	Best: 1M	256K
Reasoning	Yes	Yes
Open weights	No	No
Cost / task	$0.145	—

Intelligence

GPT-5.6 Terra (Low): Best: 27.5
Grok Build 0.1 0616: 27.2

Coding

GPT-5.6 Terra (Low): Best: 58.1
Grok Build 0.1 0616: 51.5

Agentic

GPT-5.6 Terra (Low): 25.9
Grok Build 0.1 0616: —

Speed

GPT-5.6 Terra (Low): Best: 93.2 t/s
Grok Build 0.1 0616: 67.4 t/s

TTFT

GPT-5.6 Terra (Low): Best: 1.53 s
Grok Build 0.1 0616: 1.76 s

Input · $ / 1M tokens

GPT-5.6 Terra (Low): $2×2 relative to the lowest price among the compared models
Grok Build 0.1 0616: Best: $1

Output · $ / 1M tokens

GPT-5.6 Terra (Low): $12×6 relative to the lowest price among the compared models
Grok Build 0.1 0616: Best: $2

Context window

GPT-5.6 Terra (Low): Best: 1M
Grok Build 0.1 0616: 256K

Reasoning

GPT-5.6 Terra (Low): Yes
Grok Build 0.1 0616: Yes

Open weights

GPT-5.6 Terra (Low): No
Grok Build 0.1 0616: No

Cost / task

GPT-5.6 Terra (Low): $0.145
Grok Build 0.1 0616: —

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 Terra (Low)27.5 · $4.50
Grok Build 0.1 061627.2 · $1.25