From 647544b810b6a12d0bd2fa61a105ab9259ef4705 Mon Sep 17 00:00:00 2001
From: Andrew Munsell <andrew@wizardapps.net>
Date: Fri, 10 Jul 2026 14:08:59 -0700
Subject: [PATCH] chore(cursor): add Grok 4.5 effort/fast model IDs (#6774)

Reconstructed onto release/v3.8.47 to drop unrelated main-drift (deps/electron/proxy
files belong to #6620, not this PR); keeps only the author's changes.

Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>
---
 changelog.d/features/6774-cursor-grok-4-5-effort-fast.md | 1 +
 open-sse/config/providers/registry/cursor/index.ts       | 7 +++++++
 tests/unit/cursor-agent-models.test.ts                   | 5 +++++
 3 files changed, 13 insertions(+)
 create mode 100644 changelog.d/features/6774-cursor-grok-4-5-effort-fast.md

diff --git a/changelog.d/features/6774-cursor-grok-4-5-effort-fast.md b/changelog.d/features/6774-cursor-grok-4-5-effort-fast.md
new file mode 100644
index 0000000000..a43c55469b
--- /dev/null
+++ b/changelog.d/features/6774-cursor-grok-4-5-effort-fast.md
@@ -0,0 +1 @@
+- **chore(cursor): add Grok 4.5 effort/fast model IDs** (#6774 — thanks @andrewmunsell).
diff --git a/open-sse/config/providers/registry/cursor/index.ts b/open-sse/config/providers/registry/cursor/index.ts
index 264ee9740e..ee9054cd0d 100644
--- a/open-sse/config/providers/registry/cursor/index.ts
+++ b/open-sse/config/providers/registry/cursor/index.ts
@@ -149,6 +149,13 @@ export const cursorProvider: RegistryEntry = {
     //
     { id: "grok-4.3", name: "Grok 4.3" },
     //
+    { id: "grok-4.5-medium", name: "Grok 4.5 Medium" },
+    { id: "grok-4.5-fast-medium", name: "Grok 4.5 Fast Medium" },
+    { id: "grok-4.5-high", name: "Grok 4.5 High" },
+    { id: "grok-4.5-fast-high", name: "Grok 4.5 Fast High" },
+    { id: "grok-4.5-xhigh", name: "Grok 4.5 XHigh" },
+    { id: "grok-4.5-fast-xhigh", name: "Grok 4.5 Fast XHigh" },
+    //
     { id: "kimi-k2.5", name: "Kimi K2.5" },
   ],
 };
diff --git a/tests/unit/cursor-agent-models.test.ts b/tests/unit/cursor-agent-models.test.ts
index fafb7dbd09..a59076f3ff 100644
--- a/tests/unit/cursor-agent-models.test.ts
+++ b/tests/unit/cursor-agent-models.test.ts
@@ -45,4 +45,9 @@ test("humanizeCursorModelId pretty-prints common patterns", () => {
   assert.equal(humanizeCursorModelId("kimi-k2.5"), "Kimi K2.5");
   assert.equal(humanizeCursorModelId("gemini-3.1-pro"), "Gemini 3.1 Pro");
   assert.equal(humanizeCursorModelId("claude-4-sonnet-thinking"), "Claude 4 Sonnet Thinking");
+  // Grok 4.5 uses infix -fast- (unlike GPT's trailing -fast)
+  assert.equal(humanizeCursorModelId("grok-4.5-medium"), "Grok 4.5 Medium");
+  assert.equal(humanizeCursorModelId("grok-4.5-fast-medium"), "Grok 4.5 Fast Medium");
+  assert.equal(humanizeCursorModelId("grok-4.5-xhigh"), "Grok 4.5 XHigh");
+  assert.equal(humanizeCursorModelId("grok-4.5-fast-xhigh"), "Grok 4.5 Fast XHigh");
 });