Create new imagery from a text description (FLUX.1 schnell), fixed price $0.02 USDC. Use this when you need a new picture; use /caption to read an existing image. POST JSON body {prompt (required, max 2048 chars), steps (optional 1-8, default 4, higher is slower but sharper), seed (optional, same seed repeats the image)}. Returns base64 JPEG. Unpaid calls get 402; paid calls settle only on success.

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