OpenAI: GPT-4o vs Google: Nano Banana Pro (Gemini 3 Pro Image Preview): Which AI Model Is Better?
Updated March 24, 2026· Based on independent benchmark data
Quick Verdict
Both OpenAI: GPT-4o and Google: Nano Banana Pro (Gemini 3 Pro Image Preview) are competitive AI models. See the detailed comparison below to find which best fits your needs.
Head-to-Head Comparison
| Metric | OpenAI: GPT-4o | Google: Nano Banana Pro (Gemini 3 Pro Image Preview) |
|---|---|---|
| Intelligence Score | N/A | 48.4 |
| Coding Score | N/A | 46.5 |
| Math Score | N/A | 95.7 |
| Speed (tok/s) | N/A | 119 tok/s |
| Latency (TTFT) | N/A | 21.66s |
| Input Price / 1M tokens | $2.50 | $2.00 |
| Output Price / 1M tokens | $10 | $12 |
| Context Window | 128K | 66K |
| Max Output Tokens | 16K | 33K |
| Input Modalities | Text + Image + File | Image + Text |
| Output Modalities | Text | Image + Text |
| Free Tier | No | No |
Detailed Analysis
Pricing
Google: Nano Banana Pro (Gemini 3 Pro Image Preview) is more affordable at $2.00/1M input tokens ($12/1M output), while OpenAI: GPT-4o costs $2.50/1M input ($10/1M output). For a typical workload of 100 requests per day at 2,000 tokens each, OpenAI: GPT-4o would cost approximately $15.00/month vs $12.00/month for Google: Nano Banana Pro (Gemini 3 Pro Image Preview) in input costs alone.
Context Window
OpenAI: GPT-4o offers a larger context window at 128K tokens compared to Google: Nano Banana Pro (Gemini 3 Pro Image Preview)'s 66K. For output length, Google: Nano Banana Pro (Gemini 3 Pro Image Preview) can generate up to 33K tokens per response vs 16K for OpenAI: GPT-4o.
Choose OpenAI: GPT-4o if:
- ✓You need a larger context window (128K vs 66K)
Frequently Asked Questions
Which is cheaper, OpenAI: GPT-4o or Google: Nano Banana Pro (Gemini 3 Pro Image Preview)?
Google: Nano Banana Pro (Gemini 3 Pro Image Preview) is cheaper at $2.00/1M input tokens vs $2.50/1M for OpenAI: GPT-4o.
Can OpenAI: GPT-4o process images?
Yes, OpenAI: GPT-4o supports image input. Google: Nano Banana Pro (Gemini 3 Pro Image Preview) also supports images.
Which has a larger context window, OpenAI: GPT-4o or Google: Nano Banana Pro (Gemini 3 Pro Image Preview)?
OpenAI: GPT-4o has a larger context window at 128K compared to Google: Nano Banana Pro (Gemini 3 Pro Image Preview)'s 66K.
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Benchmark data by Artificial Analysis
Data last synced: March 24, 2026