diff --git a/open-sse/providers/registry/opencode-go.js b/open-sse/providers/registry/opencode-go.js
index a715a98e..1d1d12c0 100644
--- a/open-sse/providers/registry/opencode-go.js
+++ b/open-sse/providers/registry/opencode-go.js
@@ -35,6 +35,7 @@ export default {
   ],
   // supportedFormats follow the endpoint table in https://opencode.ai/docs/go/
   models: [
+    { id: "deepseek-flash", name: "DeepSeek V4.1 Flash", supportedFormats: ["openai"] },
     { id: "glm-5.3-flash", name: "GLM 5.3 Flash (Vision)", supportedFormats: ["openai"] },
     { id: "glm-5.3", name: "GLM 5.3", supportedFormats: ["openai"] },
     { id: "glm-5.2", name: "GLM 5.2", supportedFormats: ["openai"] },
@@ -45,7 +46,6 @@ export default {
     { id: "deepseek-v4-pro", name: "DeepSeek V4 Pro", supportedFormats: ["openai", "claude", "openai-responses"] },
     { id: "deepseek-v4-flash", name: "DeepSeek V4 Flash", supportedFormats: ["openai", "claude", "openai-responses"] },
     { id: "deepseek-v4-flash-vision-exp", name: "DeepSeek V4 Flash Vision (Exp)", supportedFormats: ["openai", "claude", "openai-responses"] },
-    { id: "deepseek-flash", name: "DeepSeek V4.1 Flash", supportedFormats: ["openai"] },
     { id: "longcat-2.0", name: "LongCat 2.0", supportedFormats: ["openai"] },
     { id: "mimo-v2.5", name: "MiMo V2.5", supportedFormats: ["openai"] },
     { id: "mimo-v2.5-pro", name: "MiMo V2.5 Pro", supportedFormats: ["openai"] },
diff --git a/tests/unit/opencode-go-models.test.js b/tests/unit/opencode-go-models.test.js
index 0ed0804b..4ee2042a 100644
--- a/tests/unit/opencode-go-models.test.js
+++ b/tests/unit/opencode-go-models.test.js
@@ -24,8 +24,9 @@ describe("OpenCode Go model catalog", () => {
   it("matches the documented model IDs", () => {
     const ids = (PROVIDER_MODELS["opencode-go"] || []).map((m) => m.id);
     expect(ids).toEqual([
+      "deepseek-flash",
       "glm-5.3-flash", "glm-5.3", "glm-5.2", "glm-5.1", "kimi-k2.7-code", "kimi-k2.6", "kimi-k3",
-      "deepseek-v4-pro", "deepseek-v4-flash", "deepseek-v4-flash-vision-exp", "deepseek-flash",
+      "deepseek-v4-pro", "deepseek-v4-flash", "deepseek-v4-flash-vision-exp",
       "longcat-2.0", "mimo-v2.5", "mimo-v2.5-pro",
       "minimax-m3", "minimax-m2.7", "minimax-m2.5",
       "qwen3.8-max", "qwen3.8-flash", "qwen3.7-max", "qwen3.7-plus", "qwen3.6-plus",