Image Token Billing ExplanationActual cost = text input tokens × $5/1M + text output tokens × $10/1M + output image tokens × $32/1M.
Cached text and image input tokens are $1.25/1M and $2/1M when reported by the provider.
Listed prices are the single-output pre-run reservation ceilings shown by the model playground; output-image and text-output reservations scale with the image count (n).
output_format "svg" adds the tokens of the text model that writes the SVG (svg_model, default gpt-5.4-mini), billed at that model's own rates listed below. Its reservation covers the author's maximum output (128K tokens) and settles down to the reported usage.
The final charge settles down from that ceiling using the provider's actual token usage. Use View for a request quote.