AI Image Generator Proxy (FLUX/Ideogram/SDXL)

Description

Who this is for

• Content teams generating 50+ images per month across blog, social, and ads.
• Studios running creative for 3+ clients with different visual directions.
• Solo operators tired of paying $30-$200/month to SaaS wrappers that are just proxies to the same models.
• Marketing ops leads who want image generation to be a workflow primitive, not a SaaS subscription.

The problem

Bannerbear, Placid, Bannerboo, Dynapictures — they’re all paying $0.01-$0.05 per image to the actual image provider and charging you $0.10-$0.30. Fine when you need 50 images/month. Not fine when you need 500.

You can go direct to Together, FAL, Replicate, OpenAI, but then you have 4 integrations to maintain, 4 prompt conventions to remember, and no unified cost view. You also lose the thing SaaS wrappers actually do give you: a prompt library, caching, retry logic, and a nice stable endpoint.

This workflow gives you all of the above, self-hosted, with no per-image markup. One endpoint. Four providers. Your prompts. Your costs.

What you’ll get

• One n8n `.json` file — unified image generation endpoint with smart routing.
• Provider modules for Together AI (FLUX.1-schnell, FLUX.1.1-pro), FAL (SDXL, FLUX), Replicate (Ideogram 3.0), OpenAI gpt-image-1.5.
• Prompt library — 40+ tested prompts for mockups, blog featured images, social cards, ad creative, product renders.
• Smart routing — auto-select cheapest provider that meets quality threshold for the use case.
• Cost tracker — logs per-image cost, daily/monthly caps, Slack alert when crossing threshold.
• Setup docs (~25 pages Markdown) covering API keys, model selection, prompt engineering for images.

Inside the pack

• Single endpoint: POST with `{prompt, use_case, size}` → returns image URL + cost + provider used.
• Use case presets: `blog_featured_1200x630`, `social_square_1024`, `mockup_ebook_800x1000`, `ad_banner_1200x628`, `product_shot_1024`, `og_image_1200x630`.
• Prompt library: 40 battle-tested prompts, organized by use case, editable per-project.
• Negative prompt templates — consistent across providers (no logos, no text, no watermarks, etc.).
• Cost dashboard — real-time per-project spend, monthly roll-up, provider breakdown.
• Retry + fallback — if FLUX fails, auto-falls back to SDXL; if both fail, queues for manual.

Real outcomes you can expect

• 60-80% image generation cost reduction vs SaaS wrappers for high-volume use.
• One integration instead of 4 — less maintenance burden.
• Consistent output quality across providers because the prompt library normalizes.
• Self-enforced cost discipline — no surprise $500 bills from a runaway loop.
• A reusable primitive — other workflows in your stack call this one instead of reimplementing.

FAQ

Do I need accounts with all 4 providers?
No — the workflow works with any subset. If you only have Together AI credits, the routing is “Together only.” Add providers as you grow.
What’s the monthly cost?
At 200 images/month: Together FLUX.1-schnell = ~$2, FLUX.1.1-pro = ~$8, Ideogram Replicate = ~$16, SDXL FAL = ~$3. Mix them based on use case. Compared to Bannerbear ~$49/month for same volume.
Can I use this for Growtoria-style branded covers?
Yes — the prompt library includes 4 cover templates tuned for SaaS founders / agency brand. And you can swap in your own.
Will it handle face restoration, upscaling, inpainting?
V1 is text-to-image only. V1.5 (free update) will add img2img, upscaling, and background removal.
What if I’m not satisfied?
See our guarantee below.

Our guarantee

Run 30 images through this workflow. If it doesn’t meaningfully reduce your image-generation time and cost, email [email protected] within 14 days of launch. Full refund, no forms.