Version guide · HiDream L1

Lower Fast Costs: When Stock Beats Another HiDream L1 Call

This version page pairs with the hub to keep Fast spend intentional across the HiDream L1 family.

Prototyping CI & fixtures Content placeholders Model hub

Where image API costs go off the rails

Latency budgets become money budgets

Slow Fast retries encourage parallel calls—and parallel charges.

Quality tiers tempt overspend

Defaulting to the highest Fast tier for every draft wastes premium capacity.

No cache means no ceiling

Without a stock layer, every page view path can re-trigger Fast.

Investors notice messy COGS

Unpredictable Fast lines make early unit economics look worse than they need to.

Cost notes for Fast

When Fast is truly required, log the business reason. Cultural friction beats invoice shock. Route non-unique surreal placeholders to Epochal at $50 USD/month with no free tier.

When a screenshot, empty state, or draft blog image would look fine from a catalog, skip another Fast billable call. Prefer Epochal Stock for those slots, then spend HiDream L1 budget only on outputs that must be generative.

The fix: Epochal Stock at $50 USD/month (no per-image fee)

When the image does not need a unique Fast synthesis, use Epochal Stock Developer Image API: a single plan at $50 USD/month with no free tier and no per-image fee. You get full catalog access, 30 requests/minute per account (all keys share the bucket), and unlimited original downloads with one concurrent transfer. Authenticate server-side only with a Bearer key—never expose secrets in browser JavaScript. Keep Fast for finals that must be generative; let Epochal cover prototypes, fixtures, and placeholders.

  • Price: $50 USD/month — single plan
  • Per-image billing: none
  • Rate limit: 30 requests/minute per account
  • Downloads: unlimited originals, one concurrent transfer
  • Best for: tests, prototypes, and placeholders instead of another Fast generation
curl -sS "https://epochalstock.com/api/v1/images?tags=workspace,startup&limit=12" \
  -H "Authorization: Bearer $EPOCHAL_API_KEY"

Keys stay on your server. Never pass ?api_key= or ship secrets to the browser.

Get the Epochal developer API See pricing details

Stock examples for Fast

Pulled server-side from Epochal tags: abstract, design, studio. Previews are cached; API keys never hit the browser.

Cozy Luxury Den With Walnut Paneling and Warm Lighting in Evening — stock example for Fast version page
Cozy Luxury Den With Walnut Paneling and Warm Lighting in Evening
Sustainability Team at Workshop Repairing Electronics With Smiles — stock example for Fast version page
Sustainability Team at Workshop Repairing Electronics With Smiles
Romantic Bedroom With Canopy Bed and Warm Lighting — stock example for Fast version page
Romantic Bedroom With Canopy Bed and Warm Lighting
Wellness Bathroom With Sauna and Candles in Modern Setting — stock example for Fast version page
Wellness Bathroom With Sauna and Candles in Modern Setting
Elegant Interior Space With Bookshelves and Sunset View — stock example for Fast version page
Elegant Interior Space With Bookshelves and Sunset View
Palatial Chef's Kitchen With Marble Waterfall and Evening Light — stock example for Fast version page
Palatial Chef's Kitchen With Marble Waterfall and Evening Light

FAQ

When should I still call Fast?

When the shipped asset must be uniquely generated and model-native. Otherwise prefer Epochal stock.

Does Epochal imitate Fast?

No. Epochal serves licensed stock. Keep Fast when you need unique generative output.

What are Epochal’s hard limits?

Single plan $50 USD/month; no free tier; no per-image fee; 30 requests/minute per account; unlimited originals with one concurrent transfer; Bearer auth server-side only.

Should fixtures pin Fast?

No. Fixtures should pin stable files or stock IDs. Live Fast makes visual tests flaky and expensive.

Other HiDream L1 versions

Full Dev Fast

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