Only uppercase known provider acronyms (GPT, GLM)

Limit acronym uppercasing to GPT and GLM so ordinary Cloudflare model names (e.g. llama-3.1-8b-instruct) are not mangled into misleading all-caps labels. Addresses a Greptile review finding.

Generated-By: PostHog Code
Task-Id: ea8239ab-8fc1-46b7-8dc6-d3661caf8800

Author: Twixes

packages/agent/src/gateway-models.test.ts

@@ -74,6 +74,19 @@ describe("formatGatewayModelName", () => {
     ).toBe("GLM-5.2");
   });
 
+  it("leaves non-acronym Cloudflare models lowercase", () => {
+    expect(
+      formatGatewayModelName({
+        id: "@cf/meta/llama-3.1-8b-instruct",
+        owned_by: "cloudflare",
+        context_window: 128000,
+        supports_streaming: true,
+        supports_vision: false,
+        allowed: true,
+      }),
+    ).toBe("llama-3.1-8b-instruct");
+  });
+
   it("blocks deprecated Claude gateway models", () => {
     expect(isBlockedModelId("claude-opus-4-5")).toBe(true);
     expect(isBlockedModelId("claude-opus-4-6")).toBe(true);

packages/agent/src/gateway-models.ts

@@ -286,10 +286,14 @@ export function compareModelsForPicker(a: string, b: string): number {
 
 const PROVIDER_PREFIXES = ["anthropic/", "openai/", "google-vertex/"];
 
-// Uppercase the acronym, keep the version attached, title-case any suffix:
-// "gpt-5.6-sol" -> "GPT-5.6 Sol", "glm-5.2" -> "GLM-5.2".
+const KNOWN_ACRONYMS = new Set(["gpt", "glm"]);
+
+// For a known acronym, uppercase it, keep the version attached, and title-case
+// any suffix: "gpt-5.6-sol" -> "GPT-5.6 Sol", "glm-5.2" -> "GLM-5.2". Other ids
+// stay lowercase to avoid mangling ordinary names (e.g. "llama-3.1-8b").
 function formatProviderModelName(modelId: string): string {
   const [acronym, version, ...suffix] = modelId.split("-");
+  if (!KNOWN_ACRONYMS.has(acronym.toLowerCase())) return modelId.toLowerCase();
   const head = version
     ? `${acronym.toUpperCase()}-${version}`
     : acronym.toUpperCase();