Latency budgets become money budgets
Slow Photon retries encourage parallel calls—and parallel charges.
Version guide · Luma Photon
Lower Photon Costs: When Stock Beats Another Luma Photon Call
Treat Photon as a paid specialty call—not the default asset source for every screen.
Where image API costs go off the rails
Quality tiers tempt overspend
Defaulting to the highest Photon tier for every draft wastes premium capacity.
No cache means no ceiling
Without a stock layer, every page view path can re-trigger Photon.
Investors notice messy COGS
Unpredictable Photon lines make early unit economics look worse than they need to.
Cost notes for Photon
When agents can re-prompt Photon on every failure or aesthetic whim, unit economics collapse. Insert a policy: if uniqueness is false, call Epochal; only if true, call Photon.
When a screenshot, empty state, or draft blog image would look fine from a catalog, skip another Photon billable call. Prefer Epochal Stock for those slots, then spend Luma Photon 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 Photon 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 Photon 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 Photon 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.
Stock examples for Photon
Pulled server-side from Epochal tags: studio, product, design. Previews are cached; API keys never hit the browser.
FAQ
When should I still call Photon?
When the shipped asset must be uniquely generated and model-native. Otherwise prefer Epochal stock.
Does Epochal imitate Photon?
No. Epochal serves licensed stock. Keep Photon 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 Photon?
No. Fixtures should pin stable files or stock IDs. Live Photon makes visual tests flaky and expensive.