MkSaaS DocsWelcome to rlay.ai
One API key for 60+ generative AI models — image, video, music, LLM
rlay.ai is a unified API for 60+ frontier generative models. One key, one SDK, one invoice — and 30-50% cheaper than fal.ai with native CN endpoints.
Quickstart→
From sign up to first call in 60 seconds
Migrate from fal.ai→
Drop-in replacement, zero code change
Generate images→
Flux 2, GPT Image, Midjourney V7, Seedream
Generate videos→
Veo 3.1, Sora 2, Kling 3.0 — async polling
Error codes→
401 / 402 / 400 / 5xx — what they mean and how to fix
Why rlay
- Same models, lower price. Direct contracts + smart routing + our own inference cluster. Sustainable 30-50% under retail.
- Drop-in compatible. Point
base_urlatapi.rlay.ai— your existing OpenAI / fal SDK keeps working. - Credits never expire. Pay once, use whenever. No monthly minimums, no rollover headaches.
- CN-native. Sub-30ms median latency from China, no proxy required.
Where to next
- Quickstart — first call in under a minute
- Models — full catalog with prices
- Pricing — calculator and plans