From 16e4f7ecc33ad895587a3581b8f8d1c6f3dbf44e Mon Sep 17 00:00:00 2001
From: o2e <24642961+o2e@users.noreply.github.com>
Date: Tue, 18 Aug 2026 13:02:29 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=20Codex=20=E9=A2=9D=E5=BA=A6?=
 =?UTF-8?q?=E6=8E=A2=E9=92=88=E6=A8=A1=E5=9E=8B=E5=85=BC=E5=AE=B9=E6=80=A7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/internal/pkg/openai/constants.go          | 3 +++
 backend/internal/service/account_usage_service.go | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/backend/internal/pkg/openai/constants.go b/backend/internal/pkg/openai/constants.go
index a863a19f81..772143ac92 100644
--- a/backend/internal/pkg/openai/constants.go
+++ b/backend/internal/pkg/openai/constants.go
@@ -45,6 +45,9 @@ func DefaultModelIDs() []string {
 // DefaultTestModel default model for testing OpenAI accounts
 const DefaultTestModel = "gpt-5.4"
 
+// CodexUsageProbeModel is the model used for OAuth Codex usage probes.
+const CodexUsageProbeModel = "codex-auto-review"
+
 // DefaultInstructions default instructions for non-Codex CLI requests.
 // 内容为真实 Codex CLI 的 GPT-5-Codex base prompt（codex 系模型默认）。
 //
diff --git a/backend/internal/service/account_usage_service.go b/backend/internal/service/account_usage_service.go
index 084d153ff2..5dc1b1b071 100644
--- a/backend/internal/service/account_usage_service.go
+++ b/backend/internal/service/account_usage_service.go
@@ -830,7 +830,7 @@ func (s *AccountUsageService) probeOpenAICodexSnapshot(ctx context.Context, acco
 	if accessToken == "" && !account.IsOpenAIAgentIdentity() {
 		return nil, fmt.Errorf("no access token available")
 	}
-	modelID := openaipkg.DefaultTestModel
+	modelID := openaipkg.CodexUsageProbeModel
 	payload := createOpenAITestPayload(modelID, true)
 	payloadBytes, err := json.Marshal(payload)
 	if err != nil {