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Nano Banana 2 (Gemini 3.1 Flash Image Preview) vs GPT-5.4 Mini

List-price comparison ·Nano Banana 2 (Gemini 3.1 Flash Image Preview) details ·GPT-5.4 Mini details

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For a typical workload (100,000 requests / mo), Nano Banana 2 (Gemini 3.1 Flash Image Preview) is the cheapest — 33% less than the priciest here ($180.00/mo vs $270.00/mo).

 Nano Banana 2 (Gemini 3.1 Flash Image Preview)GPT-5.4 Mini
Input / 1M tokens$0.500$0.750
Output / 1M tokens$3.00$4.50
Typical request (1,200 in + 400 out)$0.0018$0.0027
Context window65,536 tokens400k tokens
Max output65,536 tokens128k tokens
Quality score72/10080/100
TierFlashBalanced
ProviderGoogleOpenAI

Projected monthly cost

Requests / moNano Banana 2 (Gemini 3.1 Flash Image Preview)GPT-5.4 Mini
1,000$1.80$2.70
10,000$18.00$27.00
100,000$180.00$270.00
Open all in the calculator — adjust volume and token counts →

Nano Banana 2 (Gemini 3.1 Flash Image Preview)

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GPT-5.4 Mini

Good default for everyday chat, summarization, and lightweight agent steps where GPT-5.4-level reasoning isn't required.

Quality gap widens on long, multi-hop reasoning tasks — needs careful prompt design to avoid silent failures on edge cases.

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Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.