diff --git a/models/openai/gpt-5.6-luna.yaml b/models/openai/gpt-5.6-luna.yaml
new file mode 100644
index 0000000..21e0032
--- /dev/null
+++ b/models/openai/gpt-5.6-luna.yaml
@@ -0,0 +1,24 @@
+# yaml-language-server: $schema=https://modelparams.dev/api/v1/schema.json
+provider: openai
+authType: api_key
+model: gpt-5.6-luna
+params:
+  - path: max_completion_tokens
+    type: integer
+    label: Max tokens
+    description: Maximum number of output tokens the model may generate.
+    default: 4096
+    range:
+      min: 16
+    group: generation_length
+  - path: reasoning_effort
+    type: enum
+    label: Reasoning effort
+    description: Controls how much reasoning the model should perform before producing an answer.
+    default: none
+    values:
+      - none
+      - low
+      - medium
+      - high
+    group: reasoning
diff --git a/packages/modelparams/src/generated/data.ts b/packages/modelparams/src/generated/data.ts
index 9e296f7..9a7628e 100644
--- a/packages/modelparams/src/generated/data.ts
+++ b/packages/modelparams/src/generated/data.ts
@@ -12579,6 +12579,38 @@ export const CATALOG = [
       }
     ]
   },
+  {
+    "provider": "openai",
+    "authType": "api_key",
+    "model": "gpt-5.6-luna",
+    "params": [
+      {
+        "path": "max_completion_tokens",
+        "label": "Max tokens",
+        "description": "Maximum number of output tokens the model may generate.",
+        "group": "generation_length",
+        "type": "integer",
+        "default": 4096,
+        "range": {
+          "min": 16
+        }
+      },
+      {
+        "path": "reasoning_effort",
+        "label": "Reasoning effort",
+        "description": "Controls how much reasoning the model should perform before producing an answer.",
+        "group": "reasoning",
+        "type": "enum",
+        "default": "none",
+        "values": [
+          "none",
+          "low",
+          "medium",
+          "high"
+        ]
+      }
+    ]
+  },
   {
     "provider": "openai",
     "authType": "api_key",
diff --git a/packages/modelparams/src/generated/defaults.ts b/packages/modelparams/src/generated/defaults.ts
index c6fef94..c88e0ea 100644
--- a/packages/modelparams/src/generated/defaults.ts
+++ b/packages/modelparams/src/generated/defaults.ts
@@ -1005,6 +1005,10 @@ export const DEFAULTS = {
     "reasoning.summary": "auto",
     "text.verbosity": "medium",
   },
+  "openai/gpt-5.6-luna": {
+    max_completion_tokens: 4096,
+    reasoning_effort: "none",
+  },
   "openai/gpt-5.6-sol": {
     max_completion_tokens: 4096,
     reasoning_effort: "none",
diff --git a/packages/modelparams/src/generated/model-ids.ts b/packages/modelparams/src/generated/model-ids.ts
index f4f08ee..2816a28 100644
--- a/packages/modelparams/src/generated/model-ids.ts
+++ b/packages/modelparams/src/generated/model-ids.ts
@@ -163,6 +163,7 @@ export const MODEL_IDS = [
   "openai/gpt-5.5-pro",
   "openai/gpt-5.5-pro-subscription",
   "openai/gpt-5.5-subscription",
+  "openai/gpt-5.6-luna",
   "openai/gpt-5.6-sol",
   "openai/o1",
   "openai/o1-mini",
diff --git a/packages/modelparams/src/generated/params-by-id.ts b/packages/modelparams/src/generated/params-by-id.ts
index 40089f8..7b4df80 100644
--- a/packages/modelparams/src/generated/params-by-id.ts
+++ b/packages/modelparams/src/generated/params-by-id.ts
@@ -1207,6 +1207,10 @@ export type ParamsById = {
     "reasoning.summary": "auto" | "concise" | "detailed" | "none";
     "text.verbosity": "low" | "medium" | "high";
   };
+  "openai/gpt-5.6-luna": {
+    max_completion_tokens: number;
+    reasoning_effort: "none" | "low" | "medium" | "high";
+  };
   "openai/gpt-5.6-sol": {
     max_completion_tokens: number;
     reasoning_effort: "none" | "low" | "medium" | "high";