From 1686e7e897ae9aa10624fa6ecd721441fab71d1a Mon Sep 17 00:00:00 2001
From: Yasyf Mohamedali <yasyf@poetic.com>
Date: Thu, 1 Oct 2026 19:39:27 -0700
Subject: [PATCH] =?UTF-8?q?codex:=20=E2=AC=86=EF=B8=8F=20Resolve=20the=20s?=
 =?UTF-8?q?mall=20and=20medium=20tiers=20to=20gpt-6-luna?=
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Claude-Session-Id: 900424b6-7393-480c-a26a-f1bd21da6e57
---
 conformance/vectors/capabilities/capabilities.json | 4 ++--
 conformance/vectors/plan/codex-agent.json          | 4 ++--
 conformance/vectors/plan/codex-effort-suffix.json  | 4 ++--
 rust/conformance-gen/src/cases.rs                  | 4 ++--
 rust/spawnllm-core/src/route.rs                    | 4 ++--
 spawnllm/backends/codex.py                         | 4 ++--
 tests/test_backends.py                             | 4 ++--
 7 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/conformance/vectors/capabilities/capabilities.json b/conformance/vectors/capabilities/capabilities.json
index 7cd9bb2..b8ec651 100644
--- a/conformance/vectors/capabilities/capabilities.json
+++ b/conformance/vectors/capabilities/capabilities.json
@@ -63,8 +63,8 @@
       },
       "codex": {
         "large": "gpt-5.5:medium",
-        "medium": "gpt-5.6-luna:medium",
-        "small": "gpt-5.6-luna:low"
+        "medium": "gpt-6-luna:medium",
+        "small": "gpt-6-luna:low"
       },
       "gemini": {
         "large": "gemini-3-pro-preview",
diff --git a/conformance/vectors/plan/codex-agent.json b/conformance/vectors/plan/codex-agent.json
index 949da24..89eef44 100644
--- a/conformance/vectors/plan/codex-agent.json
+++ b/conformance/vectors/plan/codex-agent.json
@@ -5,7 +5,7 @@
     "provider": "codex",
     "spec": {
       "prompt": "hi",
-      "model": "gpt-5.6-luna",
+      "model": "gpt-6-luna",
       "agent": true,
       "isolated": true,
       "timeout": 180,
@@ -34,7 +34,7 @@
       "--color",
       "never",
       "--model",
-      "gpt-5.6-luna",
+      "gpt-6-luna",
       "-c",
       "service_tier=fast",
       "--ignore-user-config",
diff --git a/conformance/vectors/plan/codex-effort-suffix.json b/conformance/vectors/plan/codex-effort-suffix.json
index d6b54bb..b7372a0 100644
--- a/conformance/vectors/plan/codex-effort-suffix.json
+++ b/conformance/vectors/plan/codex-effort-suffix.json
@@ -5,7 +5,7 @@
     "provider": "codex",
     "spec": {
       "prompt": "hi",
-      "model": "gpt-5.6-luna:medium",
+      "model": "gpt-6-luna:medium",
       "agent": false,
       "isolated": true,
       "timeout": 180,
@@ -34,7 +34,7 @@
       "--color",
       "never",
       "--model",
-      "gpt-5.6-luna",
+      "gpt-6-luna",
       "-c",
       "model_reasoning_effort=medium",
       "-c",
diff --git a/rust/conformance-gen/src/cases.rs b/rust/conformance-gen/src/cases.rs
index 5a8d295..6b25949 100644
--- a/rust/conformance-gen/src/cases.rs
+++ b/rust/conformance-gen/src/cases.rs
@@ -368,13 +368,13 @@ fn plan_cases() -> Vec<Case> {
             "codex",
             RunSpec {
                 agent: true,
-                ..spec("hi", "gpt-5.6-luna")
+                ..spec("hi", "gpt-6-luna")
             },
         ),
         plan_case(
             "codex-effort-suffix",
             "codex",
-            spec("hi", "gpt-5.6-luna:medium"),
+            spec("hi", "gpt-6-luna:medium"),
         ),
         codex_cfg_case(
             "codex-service-tier-none",
diff --git a/rust/spawnllm-core/src/route.rs b/rust/spawnllm-core/src/route.rs
index d6f33ed..7bde851 100644
--- a/rust/spawnllm-core/src/route.rs
+++ b/rust/spawnllm-core/src/route.rs
@@ -65,8 +65,8 @@ pub fn capabilities() -> Capabilities {
                 "codex",
                 ModelTiers {
                     large: Some("gpt-5.5:medium"),
-                    medium: Some("gpt-5.6-luna:medium"),
-                    small: Some("gpt-5.6-luna:low"),
+                    medium: Some("gpt-6-luna:medium"),
+                    small: Some("gpt-6-luna:low"),
                 },
             ),
             (
diff --git a/spawnllm/backends/codex.py b/spawnllm/backends/codex.py
index 2e605ac..0ae88f2 100644
--- a/spawnllm/backends/codex.py
+++ b/spawnllm/backends/codex.py
@@ -29,8 +29,8 @@ class CodexCliBackend(CliBackend):
     """
 
     models: ClassVar[dict[TModel, str]] = {
-        "small": "gpt-5.6-luna:low",
-        "medium": "gpt-5.6-luna:medium",
+        "small": "gpt-6-luna:low",
+        "medium": "gpt-6-luna:medium",
         "large": "gpt-5.5:medium",
     }
     provider: ClassVar[ProviderName] = "codex"
diff --git a/tests/test_backends.py b/tests/test_backends.py
index e6073c0..d4492d1 100644
--- a/tests/test_backends.py
+++ b/tests/test_backends.py
@@ -554,8 +554,8 @@ def test_claude(self) -> None:
 
     def test_codex(self) -> None:
         assert CodexCliBackend().models == {
-            "small": "gpt-5.6-luna:low",
-            "medium": "gpt-5.6-luna:medium",
+            "small": "gpt-6-luna:low",
+            "medium": "gpt-6-luna:medium",
             "large": "gpt-5.5:medium",
         }