diff --git a/CHANGELOG.md b/CHANGELOG.md
index c939e87eb..63bc15ce1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- List the new OpenAI `gpt-6-sol`/`gpt-6-luna` models for ChatGPT OAuth accounts by bumping the Codex client version the backend gates on.
+
 ## 0.161.1
 
 - Add Claude Opus 5.5 support.
diff --git a/integration-test/integration/chat/commands_test.clj b/integration-test/integration/chat/commands_test.clj
index dcb8f360a..dfab6dc95 100644
--- a/integration-test/integration/chat/commands_test.clj
+++ b/integration-test/integration/chat/commands_test.clj
@@ -52,8 +52,10 @@
                        {:name "plugins" :arguments []}
                        {:name "plugin-install"
                         :arguments [{:name "plugin" :description "Plugin name or plugin@marketplace" :required true}]}
+                       {:name "plugin-update"
+                        :arguments [{:name "marketplace" :description "Configured marketplace source name" :required true}]}
                        {:name "plugin-uninstall"
-                        :arguments [{:name "plugin" :description "Plugin name" :required true}]}
+                        :arguments [{:name "plugin" :description "Plugin name or plugin@marketplace" :required true}]}
                        {:name "hooks" :arguments []}
                        {:name "eca-info" :arguments nil}]}
            resp))))
diff --git a/src/eca/llm_providers/openai.clj b/src/eca/llm_providers/openai.clj
index f9d3b1b65..de18ceebe 100644
--- a/src/eca/llm_providers/openai.clj
+++ b/src/eca/llm_providers/openai.clj
@@ -47,8 +47,8 @@
 ;; for some models. All Codex specifics live in the `codex-` fns below.
 
 ;; Keep >= the `minimal_client_version` of the newest model we want the Codex
-;; /models endpoint to list (gpt-6-astra requires 0.153.0).
-(def ^:private codex-compatibility-version "0.153.1")
+;; /models endpoint to list (gpt-6-sol/gpt-6-luna require 0.155.0).
+(def ^:private codex-compatibility-version "0.155.1")
 
 (def ^:private codex-responses-url "https://chatgpt.com/backend-api/codex/responses")