fix(provider): constrain OpenAI deep research efforts (#26273)

packages/opencode/src/provider/transform.ts

@@ -554,6 +554,7 @@ function gpt5ChatReasoningEfforts(apiId: string) {
 // to strongest.
 function openaiReasoningEfforts(apiId: string, releaseDate: string) {
   const id = apiId.toLowerCase()
+  if (id.includes("deep-research")) return ["medium"]
   const chatEfforts = gpt5ChatReasoningEfforts(id)
   if (chatEfforts) return chatEfforts
   if (GPT5_PRO_RE.test(id)) return OPENAI_GPT5_PRO_EFFORTS

packages/opencode/test/provider/transform.test.ts

@@ -3066,6 +3066,14 @@ describe("ProviderTransform.variants", () => {
     })
 
     for (const testCase of [
+      { id: "o1", releaseDate: "2024-12-17", efforts: ["low", "medium", "high"] },
+      { id: "o1-pro", releaseDate: "2025-03-19", efforts: ["low", "medium", "high"] },
+      { id: "o3", releaseDate: "2025-04-16", efforts: ["low", "medium", "high"] },
+      { id: "o3-mini", releaseDate: "2025-01-31", efforts: ["low", "medium", "high"] },
+      { id: "o3-pro", releaseDate: "2025-06-10", efforts: ["low", "medium", "high"] },
+      { id: "o4-mini", releaseDate: "2025-04-16", efforts: ["low", "medium", "high"] },
+      { id: "o3-deep-research", releaseDate: "2025-06-26", efforts: ["medium"] },
+      { id: "o4-mini-deep-research", releaseDate: "2025-06-26", efforts: ["medium"] },
       { id: "gpt-5.1", releaseDate: "2025-11-13", efforts: ["none", "low", "medium", "high"] },
       { id: "gpt-5.4", releaseDate: "2026-03-05", efforts: ["none", "low", "medium", "high", "xhigh"] },
       {