GPT-5 Image Mini vs Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)
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 GPT-5 Image Mini and Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image).
GPT-5 Image Mini
GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by [GPT-5 Mini](https://openrouter.ai/openai/gpt-5-mini), with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text...
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) is Google's fastest, most cost-efficient Gemini image model, built for high-velocity developer pipelines and rapid-fire visual exploration. It delivers text-to-image generation...
Technical Specifications
| Specification | GPT-5 Image Mini | Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 400,000 tokens | 65,536 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-10-16 | 2026-06-30 |
API Pricing Comparison
Input Price per Million Tokens
GPT-5 Image Mini
$2.50
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)
$0.25
Output Price per Million Tokens
GPT-5 Image Mini
$2.00
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)
$1.50
Want to test both models live?
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
GPT-5 Image Mini Quirks & Gotchas
No developer gotchas reported.
Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image) Quirks & Gotchas
No developer gotchas reported.