From 24d19a5f787f55c7b0aa25294d29d41d67090429 Mon Sep 17 00:00:00 2001
From: kzw200015 <kzw200015@gmail.com>
Date: Sat, 10 Jan 2026 19:37:04 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BB=8Ecodex=E8=AF=B7=E6=B1=82?=
 =?UTF-8?q?=E5=8F=82=E6=95=B0=E4=B8=AD=E7=A7=BB=E9=99=A4max=5Foutput=5Ftok?=
 =?UTF-8?q?ens=20(#231)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

某些客户端比如 opencode 会在请求中附加 max_output_tokens，这会导致上游返回400错误
---
 backend/internal/service/openai_gateway_service.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/backend/internal/service/openai_gateway_service.go b/backend/internal/service/openai_gateway_service.go
index 5bb7574a..9d365ad6 100644
--- a/backend/internal/service/openai_gateway_service.go
+++ b/backend/internal/service/openai_gateway_service.go
@@ -545,6 +545,8 @@ func (s *OpenAIGatewayService) Forward(ctx context.Context, c *gin.Context, acco
 	// 2. Normalize input format for Codex API compatibility
 	if account.Type == AccountTypeOAuth {
 		reqBody["store"] = false
+		// Codex 上游不接受 max_output_tokens 参数，需要在转发前移除。
+		delete(reqBody, "max_output_tokens")
 		bodyModified = true
 
 		// Normalize input format: convert AI SDK multi-part content format to simplified format