From b5d61b77f75ea466f3dc6e2ef8a3a1154cdd06cc Mon Sep 17 00:00:00 2001
From: Aiden Cline <63023139+rekram1-node@users.noreply.github.com>
Date: Wed, 13 Aug 2025 06:26:07 -0500
Subject: [PATCH] fix: reasoning not supported (#1882)

---
 packages/opencode/src/provider/transform.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index 8428c247..4f809a4b 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -90,7 +90,7 @@ export namespace ProviderTransform {
       result["promptCacheKey"] = sessionID
     }
 
-    if (modelID.includes("gpt-5")) {
+    if (modelID.includes("gpt-5") && !modelID.includes("gpt-5-chat")) {
       result["reasoningEffort"] = "minimal"
       if (providerID !== "azure") {
         result["textVerbosity"] = "low"