GPT-5.6 Sol 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-5.6 Sol and Nano Banana (Gemini 2.5 Flash Image).
GPT-5.6 Sol
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
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-5.6 Sol | Nano Banana (Gemini 2.5 Flash Image) |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 1,050,000 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 | beta | stable |
| API Available | Yes | Yes |
| Released Date | 2026-07-09 | 2025-10-07 |
API Pricing Comparison
Input Price per Million Tokens
GPT-5.6 Sol
$5.00
Nano Banana (Gemini 2.5 Flash Image)
$0.30
Output Price per Million Tokens
GPT-5.6 Sol
$30.00
Nano Banana (Gemini 2.5 Flash Image)
$2.50
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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-5.6 Sol Quirks & Gotchas
No developer gotchas reported.
Nano Banana (Gemini 2.5 Flash Image) Quirks & Gotchas
No developer gotchas reported.