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Nano Banana 2 (Gemini 3.1 Flash Image) vs o4 Mini High

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Nano Banana 2 (Gemini 3.1 Flash Image) and o4 Mini High.

Google

Nano Banana 2 (Gemini 3.1 Flash Image)

Gemini 3.1 Flash Image, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines advanced...

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OpenAI

o4 Mini High

OpenAI o4-mini-high is the same model as [o4-mini](/openai/o4-mini) with reasoning_effort set to high. OpenAI o4-mini is a compact reasoning model in the o-series, optimized for fast, cost-efficient performance while retaining...

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Technical Specifications

SpecificationNano Banana 2 (Gemini 3.1 Flash Image)o4 Mini High
ProviderGoogleOpenAI
Context Window131,072 tokens200,000 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2026-06-182025-04-16

API Pricing Comparison

Input Price per Million Tokens

Nano Banana 2 (Gemini 3.1 Flash Image)

$0.50

o4 Mini High

$1.10

Output Price per Million Tokens

Nano Banana 2 (Gemini 3.1 Flash Image)

$3.00

o4 Mini High

$4.40

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

Nano Banana 2 (Gemini 3.1 Flash Image) Quirks & Gotchas

No developer gotchas reported.

o4 Mini High Quirks & Gotchas

No developer gotchas reported.