Nano Banana 2 (Gemini 3.1 Flash Image) vs Grok 4.7

Price, context window & benchmark comparison

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Nano Banana 2 (Gemini 3.1 Flash Image)

Google
$0.50 / $3.00
Input / Output · per 1M tokens
VS
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Grok 4.7

xAI
$1.60 / $4.80
Input / Output · per 1M tokens
Compare different models
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X
Verdict: Nano Banana 2 (Gemini 3.1 Flash Image) is 2.1× cheaper than Grok 4.7 on a typical 3:1 input/output mix. Grok 4.7 has the larger context window (500K vs 131K).
Nano Banana 2 (Gemini 3.1 Flash Image)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$0.40
Context window131K500K
Max output33K450K
Intelligence index46.4
Coding index
Providers24
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingNoYes
Released2026-06-182026-09-21
Retirement

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FAQ

Which is cheaper, Nano Banana 2 (Gemini 3.1 Flash Image) or Grok 4.7?

Nano Banana 2 (Gemini 3.1 Flash Image) is 2.1× cheaper than Grok 4.7 on a typical 3:1 input/output mix.

Nano Banana 2 (Gemini 3.1 Flash Image) vs Grok 4.7: which has a bigger context window?

Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens. Grok 4.7: 500,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Nano Banana 2 (Gemini 3.1 Flash Image) ≈ $2,500, Grok 4.7 ≈ $5,600.

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