This guide distills hard‑won lessons for building AI image features with ApiNest: designing prompts that consistently hit the style you want, controlling cost with batching and size constraints, and ensuring safety for production apps.
Prompt design
- Be explicit about subject, style, lighting, camera, and aspect ratio.
- Provide 2–3 positive references and a short negative list.
- Keep length under 300–400 chars for faster inference.
Batching & cost
Group 2–4 variations per request to reduce overhead. Use smaller sizes for previews and upscale on approve.
Latency tuning
- Give the user immediate feedback with a placeholder and progress state.
- Use webhooks or polling with backoff for long jobs; set client timeouts to 60s.
Safety
Filter user prompts; decline disallowed content and log for review. Add rate limits per user and per IP.
FAQ
How to get consistent style?
Use a stable style block and lock key terms (e.g., “cinematic, volumetric lighting, 35mm”).
What’s a good default image size?
Start with 768×768 or 1024×1024; upscale on demand.