GPT-4o Search Preview vs Nano Banana (Gemini 2.5 Flash 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-4o Search Preview and Nano Banana (Gemini 2.5 Flash Image).
GPT-4o Search Preview
GPT-4o Search Previewis a specialized model for web search in Chat Completions. It is trained to understand and execute web search queries.
Nano Banana (Gemini 2.5 Flash Image)
Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation,...
Technical Specifications
| Specification | GPT-4o Search Preview | Nano Banana (Gemini 2.5 Flash Image) |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 128,000 tokens | 32,768 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 | 2025-03-12 | 2025-10-07 |
API Pricing Comparison
Input Price per Million Tokens
GPT-4o Search Preview
$2.50
Nano Banana (Gemini 2.5 Flash Image)
$0.30
Output Price per Million Tokens
GPT-4o Search Preview
$10.00
Nano Banana (Gemini 2.5 Flash Image)
$2.50
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.
GPT-4o Search Preview Quirks & Gotchas
No developer gotchas reported.
Nano Banana (Gemini 2.5 Flash Image) Quirks & Gotchas
No developer gotchas reported.