fix(coding-agent): allow model-level baseUrl override in models.json closes #1777

packages/coding-agent/test/model-registry.test.ts

@@ -237,6 +237,43 @@ describe("ModelRegistry", () => {
 			}
 		});
 
+		test("model-level baseUrl overrides provider-level baseUrl for custom models", () => {
+			writeRawModelsJson({
+				"opencode-go": {
+					baseUrl: "https://opencode.ai/zen/go/v1",
+					apiKey: "TEST_KEY",
+					models: [
+						{
+							id: "minimax-m2.5",
+							api: "anthropic-messages",
+							baseUrl: "https://opencode.ai/zen/go",
+							reasoning: true,
+							input: ["text"],
+							cost: { input: 0.3, output: 1.2, cacheRead: 0.03, cacheWrite: 0 },
+							contextWindow: 204800,
+							maxTokens: 131072,
+						},
+						{
+							id: "glm-5",
+							api: "openai-completions",
+							reasoning: true,
+							input: ["text"],
+							cost: { input: 1, output: 3.2, cacheRead: 0.2, cacheWrite: 0 },
+							contextWindow: 204800,
+							maxTokens: 131072,
+						},
+					],
+				},
+			});
+
+			const registry = new ModelRegistry(authStorage, modelsJsonPath);
+			const m25 = registry.find("opencode-go", "minimax-m2.5");
+			const glm5 = registry.find("opencode-go", "glm-5");
+
+			expect(m25?.baseUrl).toBe("https://opencode.ai/zen/go");
+			expect(glm5?.baseUrl).toBe("https://opencode.ai/zen/go/v1");
+		});
+
 		test("modelOverrides still apply when provider also defines models", () => {
 			writeRawModelsJson({
 				openrouter: {