Nano Banana 2 (Gemini 3.1 Flash Image) vs GLM 5.3 Prime

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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GLM 5.3 Prime

Z.ai (Zhipu)
$2.80 / $8.80
Input / Output · per 1M tokens
Compare different models
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Verdict: Nano Banana 2 (Gemini 3.1 Flash Image) is 3.8× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix. GLM 5.3 Prime has the larger context window (1M vs 131K).
Nano Banana 2 (Gemini 3.1 Flash Image)GLM 5.3 Prime
Input price / 1M$0.50$2.80
Output price / 1M$3.00$8.80
Blended price (3:1)$1.13$4.30
Cached input / 1M$0.56
Context window131K1M
Max output33K131K
Intelligence index
Coding index
Providers21
Best provider uptime (30m)100.0%100.0%
Vision inputYesNo
ReasoningYesYes
Tool callingNoYes
Released2026-06-182026-09-23
Retirement

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FAQ

Which is cheaper, Nano Banana 2 (Gemini 3.1 Flash Image) or GLM 5.3 Prime?

Nano Banana 2 (Gemini 3.1 Flash Image) is 3.8× cheaper than GLM 5.3 Prime on a typical 3:1 input/output mix.

Nano Banana 2 (Gemini 3.1 Flash Image) vs GLM 5.3 Prime: which has a bigger context window?

Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens. GLM 5.3 Prime: 1,000,000 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, GLM 5.3 Prime ≈ $10,000.

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