createImagesModels()/ImagesProvider/createImagesProvider() give image
generation the same shape as chat: sync model reads, explicit async
refresh(provider?) with in-flight dedupe, provider-resolved auth, and
never-rejecting generateImages() (failures return AssistantImages with
stopReason error). Auth resolution is shared with the chat side via the
free-standing resolveProviderAuth() in auth/resolve.ts, which also owns
ModelsError; both collections pass their store/context as arguments.
The OpenRouter implementation moves to api/openrouter-images.ts with a
lazy wrapper; openrouterImagesProvider() factory plus
builtinImagesProviders()/builtinImagesModels() land in providers/all.
The ImagesProvider id type alias is renamed to ImagesProviderId
(mirror of Provider -> ProviderId). The old global image API
(getImageModel*, generateImages, registerImagesApiProvider) stays on
/compat, its registration shim repointed at the moved implementation.
README: Quick Start uses builtinModels(), the full streaming event
switch, image generation and the development checklist are restored in
full, image generation documents the new collections with compat noted
for the old API, plus the review fixes (builtinModels options,
credential-store mention for browsers, ImagesModels notes).
Quick Start, querying, auth, OAuth, custom providers, faux, handoffs,
browser usage, and the dev checklist now demonstrate createModels() +
provider factories: sync model reads with explicit refresh, provider-
owned auth resolution (getAuth, credential store, env tables),
OAuthAuth login/refresh with prompt()/notify() callbacks, and
createProvider() for custom/dynamic providers (replacing bare Model +
global stream). Direct API implementation calls documented under the
canonical ./api/<id> subpaths with the legacy aliases noted.
The old global API is documented once, in a migration section pointing
at /compat with an old-to-new mapping table. Image generation is
documented as living on compat for now. All import/code claims
verified with a compile-and-run smoke script.
Armin Ronacher