Gemini 3.1 Pro Preview vs GPT-3.5 Turbo 16k
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 Gemini 3.1 Pro Preview and GPT-3.5 Turbo 16k.
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
GPT-3.5 Turbo 16k
This model offers four times the context length of gpt-3.5-turbo, allowing it to support approximately 20 pages of text in a single request at a higher cost. Training data: up...
Technical Specifications
| Specification | Gemini 3.1 Pro Preview | GPT-3.5 Turbo 16k |
|---|---|---|
| Provider | OpenAI | |
| Context Window | 1,048,576 tokens | 16,385 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 | 2026-02-19 | 2023-08-28 |
API Pricing Comparison
Input Price per Million Tokens
Gemini 3.1 Pro Preview
$2.00
GPT-3.5 Turbo 16k
$3.00
Output Price per Million Tokens
Gemini 3.1 Pro Preview
$12.00
GPT-3.5 Turbo 16k
$4.00
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.
Gemini 3.1 Pro Preview Quirks & Gotchas
No developer gotchas reported.
GPT-3.5 Turbo 16k Quirks & Gotchas
No developer gotchas reported.