Image Types
Last updated
Image options, results, per-provider endpoints, and image helpers.
Options and result
type ImageOptions struct {
AspectRatio string // "1:1" "16:9" "4:3"
Size string // "1k" "2k" "4k"
Quality string // "low" "medium" "high"
RefImageB64 string
RefMime string
}
type ImageResult struct {
B64 string
MimeType string
Revised string
}
Endpoints per provider
| Provider | Endpoint | Result |
|---|---|---|
openai |
/v1/images/generations, /v1/images/edits with a reference |
PNG (output_format), Revised set |
codex |
image_generation tool on ChatGPT Codex Responses |
PNG, Revised set |
gemini |
:generateContent |
JPEG |
grok / grok-oauth |
/v1/images/generations and /v1/images/edits |
JPEG |
openrouter |
/api/v1/images |
media_type from the response |
Helpers
| Function | Signature |
|---|---|
ImagePixelSize |
func(opts ImageOptions) string; Size applies to the short edge |
DataURI |
func(mime, b64 string) string |