diff --git a/packages/opencode/src/provider/provider.ts b/packages/opencode/src/provider/provider.ts
index fdd4ccdfb619..c75d151ad697 100644
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -1033,6 +1033,12 @@ export namespace Provider {
           name: model.providerID,
           ...options,
         })
+        if (model.api.npm.includes("@ai-sdk/openai-compatible") && model.options["responsesApiSupported"] === true) {
+          log.debug(`using responses api for ${model.id}`)
+          // the copilot openai compatible override is the only who exposes the responses api
+          // not even upstream @ai-sk/openai-compatible does
+          loaded.languageModel = createGitHubCopilotOpenAICompatible({name: model.providerID, ...options}).responses
+        }
         s.sdk.set(key, loaded)
         return loaded as SDK
       }
diff --git a/packages/opencode/src/provider/sdk/openai-compatible/src/responses/openai-responses-language-model.ts b/packages/opencode/src/provider/sdk/openai-compatible/src/responses/openai-responses-language-model.ts
index 0990b7e0077c..7510c0ca37e6 100644
--- a/packages/opencode/src/provider/sdk/openai-compatible/src/responses/openai-responses-language-model.ts
+++ b/packages/opencode/src/provider/sdk/openai-compatible/src/responses/openai-responses-language-model.ts
@@ -194,7 +194,7 @@ export class OpenAIResponsesLanguageModel implements LanguageModelV2 {
     }
 
     const openaiOptions = await parseProviderOptions({
-      provider: "openai",
+      provider: this.config.provider.replace(".responses", ""),
       providerOptions,
       schema: openaiResponsesProviderOptionsSchema,
     })