GPT-3.5 Turbo (older v0613) vs Nano Banana Pro (Gemini 3 Pro Image Preview)
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-3.5 Turbo (older v0613) and Nano Banana Pro (Gemini 3 Pro Image Preview).
GPT-3.5 Turbo (older v0613)
GPT-3.5 Turbo is OpenAI's fastest model. It can understand and generate natural language or code, and is optimized for chat and traditional completion tasks. Training data up to Sep 2021.
Nano Banana Pro (Gemini 3 Pro Image Preview)
Nano Banana Pro is Google’s most advanced image-generation and editing model, built on Gemini 3 Pro. It extends the original Nano Banana with significantly improved multimodal reasoning, real-world grounding, and...
Technical Specifications
| Specification | GPT-3.5 Turbo (older v0613) | Nano Banana Pro (Gemini 3 Pro Image Preview) |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 4,095 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 | 2024-01-25 | 2025-11-20 |
API Pricing Comparison
Input Price per Million Tokens
GPT-3.5 Turbo (older v0613)
$1.00
Nano Banana Pro (Gemini 3 Pro Image Preview)
$2.00
Output Price per Million Tokens
GPT-3.5 Turbo (older v0613)
$2.00
Nano Banana Pro (Gemini 3 Pro Image Preview)
$12.00
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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-3.5 Turbo (older v0613) Quirks & Gotchas
No developer gotchas reported.
Nano Banana Pro (Gemini 3 Pro Image Preview) Quirks & Gotchas
No developer gotchas reported.