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

Price, context window & benchmark comparison

Google

Nano Banana 2 (Gemini 3.1 Flash Image)

Google
$0.50 / $3.00
Input / Output · per 1M tokens
VS
Z.ai (Zhipu)

GLM 5.3 Flash

Z.ai (Zhipu)
$0.15 / $0.50
Input / Output · per 1M tokens
Compare different models
Google
Z.ai (Zhipu)
Verdict: GLM 5.3 Flash is 4.7× cheaper than Nano Banana 2 (Gemini 3.1 Flash Image) on a typical 3:1 input/output mix. GLM 5.3 Flash has the larger context window (1.3M vs 131K).
Nano Banana 2 (Gemini 3.1 Flash Image)GLM 5.3 Flash
Input price / 1M$0.50$0.15
Output price / 1M$3.00$0.50
Blended price (3:1)$1.13$0.24
Cached input / 1M$0.05
Context window131K1.3M
Max output33K944K
Intelligence index41.8
Coding index71.5
Providers231
Best provider uptime (30m)100.0%100.0%
Vision inputYesYes
ReasoningYesYes
Tool callingNoYes
Released2026-06-182026-08-26
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FAQ

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

GLM 5.3 Flash is 4.7× cheaper than Nano Banana 2 (Gemini 3.1 Flash Image) on a typical 3:1 input/output mix.

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

Nano Banana 2 (Gemini 3.1 Flash Image): 131,072 tokens. GLM 5.3 Flash: 1,310,720 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 Flash ≈ $550.00.

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