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fix(copilot): honor advertised model endpoints (#34958)

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Aiden Cline 2026-07-02 10:23:57 -05:00 • committed by GitHub
commit 373cd08b98
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7 changed files with 131 additions and 20 deletions
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9
packages/llm/src/providers/github-copilot.ts
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@ -12,10 +12,12 @@ export const id = ProviderID.make("github-copilot")
export type ModelOptions = Omit<RouteDefaultsInput, "providerOptions"> &
ProviderAuthOption<"optional"> & {
readonly baseURL: string
readonly endpoint?: "chat" | "responses"
readonly providerOptions?: OpenAIProviderOptionsInput
}
export const shouldUseResponsesApi = (modelID: string | ModelID) => {
export const shouldUseResponsesApi = (modelID: string | ModelID, endpoint?: ModelOptions["endpoint"]) => {
if (endpoint) return endpoint === "responses"
const model = String(modelID)
const match = /^gpt-(\d+)/.exec(model)
if (!match) return false
@ -28,7 +30,7 @@ const chatRoute = OpenAIChat.route.with({ provider: id })
const responsesRoute = OpenAIResponses.route.with({ provider: id })
const defaults = (options: ModelOptions) => {
const { apiKey: _, auth: _auth, baseURL: _baseURL, ...rest } = options
const { apiKey: _, auth: _auth, baseURL: _baseURL, endpoint: _endpoint, ...rest } = options
return rest
}
@ -53,7 +55,8 @@ export const configure = (options: ModelOptions) => {
chatRoute.with(withOpenAIOptions(modelID, defaults(options))).model({ id: modelID })
return {
id,
model: (modelID: string | ModelID) => (shouldUseResponsesApi(modelID) ? responses(modelID) : chat(modelID)),
model: (modelID: string | ModelID) =>
shouldUseResponsesApi(modelID, options.endpoint) ? responses(modelID) : chat(modelID),
responses,
chat,
configure,