How to choose the right AI image model for your game art

There's no single best AI image model for game art. The right model depends on the asset type: one holds asymmetric details on a turnaround, another renders text cleanly for localization, another stays closest to a sketch. The reliable way to choose is a short test before every new asset type: check which models are available, run your real production prompt on the top two or three, twice each, judge against your style guide, and save the winner as a skill.

Why not just pick the most popular model?

Because leaderboards rank general images, and your game isn't general. A model that wins on photorealism can drift on a stylized character. One that paints beautifully can mangle Arabic text. The test costs a few generations. Picking wrong costs a whole batch.

How do you choose a model, step by step?

1. 1

   Step 1: Check what's available and what it supports

   Ask Genie's agent: "List all available image generation models, and for each one, return its supported aspect ratios and resolutions." For video, ask the same about video models. Filter by what your asset needs, for example 9:16 at 4K for store assets, or the ratio and length your ad network needs for video.

2. 2

   Step 2: Run your real prompt on the shortlist

   Take the top two or three and run Compare image models with your actual production prompt and the same reference. As of October 2026 the prompt compares GPT2, Nano 2 and Nano Pro; swap in whatever step 1 returned. Run it twice.

   PromptCompare image models →

3. 3

   Step 3: Judge against the right criteria

   Not "which one looks best". Judge on what breaks for this asset type:

   Asset type	What to judge first	Prompt to test with
   Characters, turnarounds	Back view, asymmetric details, face consistency	Asset turnaround
   Localized store and CRM art	Non-Latin scripts, font consistency, text fit	Multi-language localization
   Concept to final	Fidelity to the sketch's lines and proportions	Sketch to render
   Icons and sets	Consistency across the set, readability at 64px	Icon set
   Video loops	Design holding during motion, clean loop	Character idle animation (Kling 3 as of October 2026)

   PromptAsset turnaround →
4. 4

   Step 4: Save the winner and set a recheck

   Save the winning model for that asset type as a skill, so everyone on the team runs it the same way. Then recheck when a new model arrives in Genie, or before a new asset type goes into production.

Prompts in this guide

Editing and modelsCompare image modelsThe same prompt on several models, side by side, plus how to see which models are available.

CharactersAsset turnaroundA 3x3 turnaround sheet from one front view, before 3D or outsourcing.

Store, CRM and localizationMulti-language localizationOne image in 5 to 15 languages, or with your approved translations.

Concept and styleSketch to renderAn approved sketch, finished in your game's style.

Asset setsIcon setInventory, shop and event icons that read as one set.

CharactersCharacter idle animationA short looping idle for lobbies and store pages.

What goes wrong with model tests?

• The test prompt is vague. "A fantasy character" measures nothing. Use the prompt you'll actually ship with.
• One run per model. Results vary run to run. Two runs is the minimum.
• Judging by taste. Hold every result against your style guide, not against the most impressive image.
• Never rechecking. Lineups change fast. A test from three months ago is a guess today.

The honest read: model choice matters less than a clean reference and a specific prompt. A great model can't fix a vague brief. But between two good prompts, the right model is often the difference between one run and five.

Where does Genie fit?

Genie runs the available models from the same canvas and the same prompt, with your characters and styles behind @. The test above takes one request, and the result becomes a skill instead of a note someone has to remember.

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