--- title: "Image Generation" description: "Image generation always uses the same models (currently: gemini-3.1-flash-image-preview)." canonical: "https://www.questportal.com/documentation/CC4Azcx4KN/image-generation" section: "Documentation / Misc / Assistant Model Selection Examples" source: "Quest Portal documentation" version: 237 --- # Image Generation Image generation always uses the same models (currently: gemini-3.1-flash-image-preview). Choosing a model in this case refers to the LLM that parses the text and constructs a prompt passed onwards to the image generation model. Speed and credit usage includes the full run with the results provided. > Create an image of a wolf hunting in a forest. ## Summary | | 3.1 Pro | 3 Flash | 3.1 Flash Lite | 2.5 Flash | | --- | --- | --- | --- | --- | | Speed | 34.4s | 40.4s | 29.1s | 28.7 | | Credits | 11 | 8 | 7 | 8 | Based on the results we think 3.1 Flash Lite or 2.5 Flash are the best first try models. They seem to be able to create prompts feed well into the image generation model. They take shorter time and are cost effective. ### **Gemini 3.1 Pro** **Results** - Speed: 34.4s - Credits: 11 **Image** ![](https://cdn.questportal.com/raw/uploads/sTaMiuYQnTat1vns7KjZvGo7pDs2/image/de62bad1-3972-47a8-a67d-3ee68c1aa27f) ### **Gemini 3 Flash** **Results** - Speed: 40.4s - Credits: 8 **Image** ![](https://cdn.questportal.com/raw/uploads/sTaMiuYQnTat1vns7KjZvGo7pDs2/image/07f0c269-37b7-47fe-a484-9466a77a8211) ### **Gemini 3.1 Flash Lite** **Results** - Speed: 29.1s - Credits: 7 **Image** ![](https://cdn.questportal.com/raw/uploads/sTaMiuYQnTat1vns7KjZvGo7pDs2/image/223f4cf0-0b7c-4a95-8b8f-9886334e09c9) ### **Gemini 2.5 Flash** **Results** - Speed: 28.7s - Credits: 8 **Image** ![](https://cdn.questportal.com/raw/uploads/sTaMiuYQnTat1vns7KjZvGo7pDs2/image/11bf2ebd-9975-43ef-9215-99d36b7ed8ca) --- Part of the [Quest Portal documentation](https://www.questportal.com/documentation.md) (Documentation / Misc / Assistant Model Selection Examples). HTML version: .