Model Comparator

Compare up to four models using the same criteria.

GPT-5 nano (Minimal)
OpenAI
Grok 2 (Dec '24)
SpaceXSI

Differences only

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

Model Comparator
Metrics	GPT-5 nano (Minimal) OpenAI	Grok 2 (Dec '24) SpaceXSI
Intelligence	7.1	7.1
Math	27.3	—
Speed	141 t/s	—
TTFT	0.76 s	—
Input · $ / 1M tokens	$0.050	—
Output · $ / 1M tokens	$0.40	—
Context window	Best: 400K	131K
Reasoning	No	No
Open weights	No	Yes

Intelligence

GPT-5 nano (Minimal): 7.1
Grok 2 (Dec '24): 7.1

Math

GPT-5 nano (Minimal): 27.3
Grok 2 (Dec '24): —

Speed

GPT-5 nano (Minimal): 141 t/s
Grok 2 (Dec '24): —

TTFT

GPT-5 nano (Minimal): 0.76 s
Grok 2 (Dec '24): —

Input · $ / 1M tokens

GPT-5 nano (Minimal): $0.050
Grok 2 (Dec '24): —

Output · $ / 1M tokens

GPT-5 nano (Minimal): $0.40
Grok 2 (Dec '24): —

Context window

GPT-5 nano (Minimal): Best: 400K
Grok 2 (Dec '24): 131K

Reasoning

GPT-5 nano (Minimal): No
Grok 2 (Dec '24): No

Open weights

GPT-5 nano (Minimal): No
Grok 2 (Dec '24): Yes

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 nano (Minimal)7.1 · $0.138

Not plotted for lack of data on these axes: Grok 2 (Dec '24).