Gemini 3 Flash Preview vs Grok 4.7

Price, context window & benchmark comparison

Gemini 3 Flash Preview

Google

$0.50 / $3.00

Input / Output · per 1M tokens

Grok 4.7

xAI

$1.60 / $4.80

Input / Output · per 1M tokens

Compare different models

Verdict: Gemini 3 Flash Preview is 2.1× cheaper than Grok 4.7 on a typical 3:1 input/output mix. Gemini 3 Flash Preview has the larger context window (1M vs 500K).

	Gemini 3 Flash Preview	Grok 4.7
Input price / 1M	$0.50	$1.60
Output price / 1M	$3.00	$4.80
Blended price (3:1)	$1.13	$2.40
Cached input / 1M	$0.05	$0.40
Context window	1M	500K
Max output	66K	450K
Intelligence index	—	46.4
Coding index	—	—
Providers	—	4
Best provider uptime (30m)	—	100.0%
Vision input	Yes	Yes
Reasoning	Yes	Yes
Tool calling	Yes	Yes
Released	2025-12-17	2026-09-21
Retirement	—	—

Cost calculator

Input tokens / requestOutput tokens / requestRequests / day

FAQ

Which is cheaper, Gemini 3 Flash Preview or Grok 4.7?

Gemini 3 Flash Preview is 2.1× cheaper than Grok 4.7 on a typical 3:1 input/output mix.

Gemini 3 Flash Preview vs Grok 4.7: which has a bigger context window?

Gemini 3 Flash Preview: 1,048,576 tokens. Grok 4.7: 500,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Gemini 3 Flash Preview ≈ $2,500, Grok 4.7 ≈ $5,600.

More comparisons