Model Comparator

Compare up to four models using the same criteria.

Grok 4 Fast (Reasoning)
SpaceXSI
Gemini 3 Flash Preview (Non-reasoning)
Google

Differences only

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

Model Comparator
Metrics	Grok 4 Fast (Reasoning) SpaceXSI	Gemini 3 Flash Preview (Non-reasoning) Google
Intelligence	17.9	17.9
Math	Best: 89.7	55.7
Speed	—	197 t/s
TTFT	—	0.9 s
Input · $ / 1M tokens	Best: $0.20	$0.50×2.5 relative to the lowest price among the compared models
Output · $ / 1M tokens	Best: $0.50	$3×6 relative to the lowest price among the compared models
Context window	Best: 2M	1M
Reasoning	Yes	No
Open weights	No	No

Intelligence

Grok 4 Fast (Reasoning): 17.9
Gemini 3 Flash Preview (Non-reasoning): 17.9

Math

Grok 4 Fast (Reasoning): Best: 89.7
Gemini 3 Flash Preview (Non-reasoning): 55.7

Speed

Grok 4 Fast (Reasoning): —
Gemini 3 Flash Preview (Non-reasoning): 197 t/s

TTFT

Grok 4 Fast (Reasoning): —
Gemini 3 Flash Preview (Non-reasoning): 0.9 s

Input · $ / 1M tokens

Grok 4 Fast (Reasoning): Best: $0.20
Gemini 3 Flash Preview (Non-reasoning): $0.50×2.5 relative to the lowest price among the compared models

Output · $ / 1M tokens

Grok 4 Fast (Reasoning): Best: $0.50
Gemini 3 Flash Preview (Non-reasoning): $3×6 relative to the lowest price among the compared models

Context window

Grok 4 Fast (Reasoning): Best: 2M
Gemini 3 Flash Preview (Non-reasoning): 1M

Reasoning

Grok 4 Fast (Reasoning): Yes
Gemini 3 Flash Preview (Non-reasoning): No

Open weights

Grok 4 Fast (Reasoning): No
Gemini 3 Flash Preview (Non-reasoning): No

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.

Grok 4 Fast (Reasoning)17.9 · $0.275
Gemini 3 Flash Preview (Non-reasoning)17.9 · $1.13