From 5ba682c377ff4d70c26774437ef59f9af3c3e399 Mon Sep 17 00:00:00 2001
From: Peter Dave Hello <hsu@peterdavehello.org>
Date: Fri, 10 Jul 2026 02:41:06 +0800
Subject: [PATCH] Add OpenAI GPT-5.6 alias and tiered model presets

Expose the documented alias alongside explicit tiers so users can
choose either the stable family entry or a named tier.

Reference:
- https://developers.openai.com/api/docs/models/gpt-5.6-sol
- https://developers.openai.com/api/docs/models/gpt-5.6-terra
- https://developers.openai.com/api/docs/models/gpt-5.6-luna
---
 src/_locales/en/main.json                             | 4 ++++
 src/config/index.mjs                                  | 8 ++++++++
 tests/unit/config/config-predicates.test.mjs          | 4 ++++
 tests/unit/services/apis/openai-token-params.test.mjs | 4 ++++
 tests/unit/utils/model-name-convert.test.mjs          | 4 ++++
 5 files changed, 24 insertions(+)

diff --git a/src/_locales/en/main.json b/src/_locales/en/main.json
index 800478fc7..fd34aa442 100644
--- a/src/_locales/en/main.json
+++ b/src/_locales/en/main.json
@@ -210,6 +210,10 @@
   "OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",
   "OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",
   "OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",
+  "OpenAI (GPT-5.6)": "OpenAI (GPT-5.6)",
+  "OpenAI (GPT-5.6 Sol)": "OpenAI (GPT-5.6 Sol)",
+  "OpenAI (GPT-5.6 Terra)": "OpenAI (GPT-5.6 Terra)",
+  "OpenAI (GPT-5.6 Luna)": "OpenAI (GPT-5.6 Luna)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)",
   "This provider is still used by other API modes or saved conversations": "This provider is still used by other API modes or saved conversations",
   "This API key is set on the selected custom mode. Editing it here will create a dedicated provider for that mode.": "This API key is set on the selected custom mode. Editing it here will create a dedicated provider for that mode.",
diff --git a/src/config/index.mjs b/src/config/index.mjs
index 80d6ece50..d2de3a5e1 100644
--- a/src/config/index.mjs
+++ b/src/config/index.mjs
@@ -67,6 +67,10 @@ export const chatgptApiModelKeys = [
   'chatgptApi5_4Mini',
   'chatgptApi5_4Nano',
   'chatgptApi5_5',
+  'chatgptApi5_6',
+  'chatgptApi5_6Sol',
+  'chatgptApi5_6Terra',
+  'chatgptApi5_6Luna',
   'chatgptApi4oMini',
   'chatgptApi4_1',
   'chatgptApi4_1_mini',
@@ -285,6 +289,10 @@ export const Models = {
   chatgptApi5_4Mini: { value: 'gpt-5.4-mini', desc: 'OpenAI (GPT-5.4 mini)' },
   chatgptApi5_4Nano: { value: 'gpt-5.4-nano', desc: 'OpenAI (GPT-5.4 nano)' },
   chatgptApi5_5: { value: 'gpt-5.5', desc: 'OpenAI (GPT-5.5)' },
+  chatgptApi5_6: { value: 'gpt-5.6', desc: 'OpenAI (GPT-5.6)' },
+  chatgptApi5_6Sol: { value: 'gpt-5.6-sol', desc: 'OpenAI (GPT-5.6 Sol)' },
+  chatgptApi5_6Terra: { value: 'gpt-5.6-terra', desc: 'OpenAI (GPT-5.6 Terra)' },
+  chatgptApi5_6Luna: { value: 'gpt-5.6-luna', desc: 'OpenAI (GPT-5.6 Luna)' },
 
   chatgptApi4_1: { value: 'gpt-4.1', desc: 'OpenAI (GPT-4.1)' },
   chatgptApi4_1_mini: { value: 'gpt-4.1-mini', desc: 'OpenAI (GPT-4.1 mini)' },
diff --git a/tests/unit/config/config-predicates.test.mjs b/tests/unit/config/config-predicates.test.mjs
index 19772c40f..a899f31df 100644
--- a/tests/unit/config/config-predicates.test.mjs
+++ b/tests/unit/config/config-predicates.test.mjs
@@ -43,6 +43,10 @@ const representativeChatgptApiModelNames = [
   'chatgptApi5_4Mini',
   'chatgptApi5_4Nano',
   'chatgptApi5_5',
+  'chatgptApi5_6',
+  'chatgptApi5_6Sol',
+  'chatgptApi5_6Terra',
+  'chatgptApi5_6Luna',
 ]
 const representativeGptCompletionApiModelNames = ['gptApiInstruct']
 const representativeClaudeApiModelNames = ['claudeOpus48Api', 'claudeSonnet46Api']
diff --git a/tests/unit/services/apis/openai-token-params.test.mjs b/tests/unit/services/apis/openai-token-params.test.mjs
index e1bf09e86..7341540aa 100644
--- a/tests/unit/services/apis/openai-token-params.test.mjs
+++ b/tests/unit/services/apis/openai-token-params.test.mjs
@@ -31,6 +31,10 @@ test('uses max_completion_tokens for recent gpt-5.x model names', () => {
     'gpt-5.4-mini',
     'gpt-5.4-nano',
     'gpt-5.5',
+    'gpt-5.6',
+    'gpt-5.6-sol',
+    'gpt-5.6-terra',
+    'gpt-5.6-luna',
   ]
 
   for (const model of models) {
diff --git a/tests/unit/utils/model-name-convert.test.mjs b/tests/unit/utils/model-name-convert.test.mjs
index 2ca39724e..3bdf3ee83 100644
--- a/tests/unit/utils/model-name-convert.test.mjs
+++ b/tests/unit/utils/model-name-convert.test.mjs
@@ -516,6 +516,10 @@ test('modelNameToDesc returns desc for GPT-5 stable presets', () => {
   assert.equal(modelNameToDesc('chatgptApi5_4Mini'), 'OpenAI (GPT-5.4 mini)')
   assert.equal(modelNameToDesc('chatgptApi5_4Nano'), 'OpenAI (GPT-5.4 nano)')
   assert.equal(modelNameToDesc('chatgptApi5_5'), 'OpenAI (GPT-5.5)')
+  assert.equal(modelNameToDesc('chatgptApi5_6'), 'OpenAI (GPT-5.6)')
+  assert.equal(modelNameToDesc('chatgptApi5_6Sol'), 'OpenAI (GPT-5.6 Sol)')
+  assert.equal(modelNameToDesc('chatgptApi5_6Terra'), 'OpenAI (GPT-5.6 Terra)')
+  assert.equal(modelNameToDesc('chatgptApi5_6Luna'), 'OpenAI (GPT-5.6 Luna)')
 })
 
 test('modelNameToDesc appends extraCustomModelName for customModel', () => {