Nano Banana 2 (Gemini 3.1 Flash Image) vs Grok Build 0.1

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
X

Grok Build 0.1

xAI
$1.00 / $2.00
Input / Output · per 1M tokens
Compare different models
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X
Verdict: Nano Banana 2 (Gemini 3.1 Flash Image) is 10% cheaper than Grok Build 0.1 on a typical 3:1 input/output mix. Grok Build 0.1 has the larger context window (256K vs 131K).
Nano Banana 2 (Gemini 3.1 Flash Image)Grok Build 0.1
Input price / 1M$0.50$1.00
Output price / 1M$3.00$2.00
Blended price (3:1)$1.13$1.25
Cached input / 1M$0.20
Context window131K256K
Max output33K230K
Intelligence index
Coding index51.5
Providers24
Best provider uptime (30m)100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingNoYes
Released2026-06-182026-05-20
Retirement

Cost calculator

FAQ

Which is cheaper, Nano Banana 2 (Gemini 3.1 Flash Image) or Grok Build 0.1?

Nano Banana 2 (Gemini 3.1 Flash Image) is 10% cheaper than Grok Build 0.1 on a typical 3:1 input/output mix.

Nano Banana 2 (Gemini 3.1 Flash Image) vs Grok Build 0.1: which has a bigger context window?

Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens. Grok Build 0.1: 256,000 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 Build 0.1 ≈ $3,000.

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