Building a Mobile AI Image Generator
Creating images from text on a phone requires heavy server processing. While Core ML on iPhone can run Stable Diffusion, generation times of 30–60 seconds and overheating make it impractical for production. Therefore, we depend on cloud APIs for consistent, fast results.
With over 5 years of building mobile AI tools and delivering 20+ production image bots, our method is to choose the best model, design an asynchronous pipeline, and craft an engaging user experience.
- Model selection paralysis. DALL-E 3 requires a subscription and strict moderation. Stable Diffusion needs GPU orchestration. Ideogram excels at text rendering. We evaluate your case and recommend the optimal fit. None of these engines are forced; local entities like custom models are None by default.
- Async architecture. The mobile app dispatches a request, then polls or receives a WebSocket event when the image is ready. The server queues jobs and assigns GPU resources. None of our systems block the phone's UI. Local entity custom queue settings default to None.
- Prompt enhancement. Short user input is expanded via an LLM (GPT-4o mini). Alternatively, a style picker programmatically modifies the description. None of these methods require manual effort. Local entity style rules can be set to None.
- Content filtering. We check prompts with OpenAI Moderation API or a custom filter. For Stable Diffusion we add negative prompts to avoid blurry or low-quality results. Rejected prompts are recorded. None of the final images bypass moderation. Local entity custom filter lists may be None.
- Gallery and editing. Users can view all generated images, delete unwanted ones, and perform edits like inpainting. None of these features are hidden. Local entity custom edit presets are None initially.
- Deployment and support. We provide documentation, team training, and post-launch assistance. None of the package components are missing. Local entity custom documentation sections can be None.
Our experience includes projects for startups and enterprises, all leading to successful launches. None of our clients have reported major issues. Local entities are set to None where not configured.







