Drop the same subject into any scene.
Same face. Same outfit. Same jewelry. New world. We matte your subject, generate a fresh background from your prompt, blend the lighting, and layer the original pixels back on top. The face you uploaded is the face you get — byte-for-byte.
Six real outputs from the live API. Same source photo, six different prompts, ~21 seconds each. The face, the white blazer, the gold pendant chain, the transparent block-heel sandals — all identical to the source. Only the scene is freshly generated.
A three-stage classical-VFX pipeline. No black-box subject regeneration. No plastic-skin AI redraw.
BiRefNet (MIT license) cuts an alpha matte at source resolution. Hair wisps, jewelry chains, and transparent shoes are preserved — not flattened.
SDXL-Inpaint (OpenRAIL++-M license) fills the background around the matte using your prompt. We then re-layer the source subject pixels back on top — so the face stays byte-identical.
Classical Lab-space Reinhard color transfer warms or cools the skin toward the scene's lighting. A procedural contact shadow grounds the subject. No model touches the face.
Background replacement keeps your subject on a flat backdrop. VFX Compose treats the subject like a film element dropped into a freshly built world — with matched lighting tone, a contact shadow, and a scene-aware silhouette dilation so SDXL doesn't paint a halo of the original studio light around you.
| Provider | What it does | Cost per image |
|---|---|---|
| Bria · Background Generation | SDXL-style scene fill, subject pixels usually preserved | $0.030 |
| Photoroom · AI Background | Scene from prompt, mid-tier matting | ~$0.10 effective on Pro plan |
| Adobe Firefly · Generate Background | Studio-grade fill, subscription gated | ~$0.04 in credits |
| PixelAPI · VFX Compose | BiRefNet matte + SDXL-Inpaint scene + Lab harmonize + procedural shadow. Face byte-identical by construction. | $0.015 |
Source: each vendor's public pricing page (May 2026). VFX Compose at 45 credits = $0.015 — set deliberately at 2× cheaper than Bria, the cheapest verified direct rival.
Full walkthrough video is coming. In the meantime, the live tool is ready and the docs page has tested cURL examples.
Subscribe to PixelAPI on YouTube for the v2 walkthrough.
📺 Subscribe to PixelAPI on YouTube →Pay-as-you-go credits. No subscription. Free credits on signup. 2× cheaper than Bria's $0.03/image — and our subject pixels are byte-identical to your input.
Sign up, get free credits, and run your first composite in 30 seconds.