From 02a190489a33bc87874ee4694fd7d68081f4101c Mon Sep 17 00:00:00 2001
From: Jilin Chen <162280666+Weizhena@users.noreply.github.com>
Date: Thu, 27 Aug 2026 19:23:58 +0800
Subject: [PATCH] fix: accept reasoning field in OpenAI Chat streams

---
 server/src/provider/openai_chat.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/src/provider/openai_chat.rs b/server/src/provider/openai_chat.rs
index bea7cb2..bdbd16b 100644
--- a/server/src/provider/openai_chat.rs
+++ b/server/src/provider/openai_chat.rs
@@ -132,7 +132,7 @@ impl Provider for OpenAiChatProvider {
                 }
                 let Some(choice) = value.get("choices").and_then(Value::as_array).and_then(|values| values.first()) else { continue; };
                 let delta = choice.get("delta").unwrap_or(&Value::Null);
-                if let Some(reasoning_delta) = delta.get("reasoning_content").and_then(Value::as_str).filter(|text| !text.is_empty()) {
+                if let Some(reasoning_delta) = delta.get("reasoning_content").or_else(|| delta.get("reasoning")).and_then(Value::as_str).filter(|text| !text.is_empty()) {
                     if !thinking_open { thinking_open = true; yield ModelEvent::ThinkingStart; }
                     reasoning.push_str(reasoning_delta);
                     yield ModelEvent::ThinkingDelta(reasoning_delta.into());