Add OpenAI's GPT-5.5 model

PeterDaveHello · PeterDaveHello · commit 0c4d240a2ebb · 2026-05-10T14:07:35.000+08:00
Refs: - https://developers.openai.com/api/docs/models/gpt-5.5 - https://developers.openai.com/api/docs/guides/latest-model
diff --git a/src/_locales/de/main.json b/src/_locales/de/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/en/main.json b/src/_locales/en/main.json
@@ -200,5 +200,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/es/main.json b/src/_locales/es/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/fr/main.json b/src/_locales/fr/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/in/main.json b/src/_locales/in/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/it/main.json b/src/_locales/it/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/ja/main.json b/src/_locales/ja/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/ko/main.json b/src/_locales/ko/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/pt/main.json b/src/_locales/pt/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/ru/main.json b/src/_locales/ru/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/tr/main.json b/src/_locales/tr/main.json
@@ -199,5 +199,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/zh-hans/main.json b/src/_locales/zh-hans/main.json
@@ -206,5 +206,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/_locales/zh-hant/main.json b/src/_locales/zh-hant/main.json
@@ -201,5 +201,6 @@
   "OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",
   "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)",
   "Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"
 }
diff --git a/src/config/index.mjs b/src/config/index.mjs
@@ -60,6 +60,7 @@ export const chatgptApiModelKeys = [
   'chatgptApi5_4',
   'chatgptApi5_4Mini',
   'chatgptApi5_4Nano',
+  'chatgptApi5_5',
   'chatgptApi4oMini',
   'chatgptApi4_8k',
   'chatgptApi4_8k_0613',
@@ -264,6 +265,7 @@ export const Models = {
   chatgptApi5_4: { value: 'gpt-5.4', desc: 'OpenAI (GPT-5.4)' },
   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)' },
 
   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
@@ -36,6 +36,7 @@ const representativeChatgptApiModelNames = [
   'chatgptApi5_4',
   'chatgptApi5_4Mini',
   'chatgptApi5_4Nano',
+  'chatgptApi5_5',
 ]
 const representativeGptCompletionApiModelNames = ['gptApiInstruct']
 const representativeClaudeApiModelNames = ['claude37SonnetApi', 'claudeOpus4Api']
diff --git a/tests/unit/services/apis/openai-token-params.test.mjs b/tests/unit/services/apis/openai-token-params.test.mjs
@@ -24,6 +24,7 @@ test('uses max_completion_tokens for recent gpt-5.x model names', () => {
     'gpt-5.3-chat-latest',
     'gpt-5.4-mini',
     'gpt-5.4-nano',
+    'gpt-5.5',
   ]
 
   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
@@ -125,6 +125,7 @@ test('modelNameToDesc returns desc for GPT-5 stable presets', () => {
   assert.equal(modelNameToDesc('chatgptApi5_4'), 'OpenAI (GPT-5.4)')
   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)')
 })
 
 test('modelNameToDesc appends extraCustomModelName for customModel', () => {

Original file line number	Diff line number	Diff line change
`@@ -199,5 +199,6 @@`
`199`	`199`	`"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",`
`200`	`200`	`"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",`
`201`	`201`	`"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",`
	`202`	`+ "OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",`
`202`	`203`	`"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"`
`203`	`204`	`}`
Original file line number	Diff line number	Diff line change
`@@ -200,5 +200,6 @@`
`200`	`200`	`"OpenAI (GPT-5.4)": "OpenAI (GPT-5.4)",`
`201`	`201`	`"OpenAI (GPT-5.4 mini)": "OpenAI (GPT-5.4 mini)",`
`202`	`202`	`"OpenAI (GPT-5.4 nano)": "OpenAI (GPT-5.4 nano)",`
	`203`	`+ "OpenAI (GPT-5.5)": "OpenAI (GPT-5.5)",`
`203`	`204`	`"Anthropic (Claude Sonnet 4.6)": "Anthropic (Claude Sonnet 4.6)"`
`204`	`205`	`}`