Add Anthropic Claude Haiku 5.5 API support

src/_locales/en/main.json

@@ -209,6 +209,7 @@
   "Anthropic (Claude Sonnet 4)": "Anthropic (Claude Sonnet 4)",
   "Anthropic (Claude Sonnet 4.5)": "Anthropic (Claude Sonnet 4.5)",
   "Anthropic (Claude Haiku 4.5)": "Anthropic (Claude Haiku 4.5)",
+  "Anthropic (Claude Haiku 5.5)": "Anthropic (Claude Haiku 5.5)",
   "OpenAI (GPT-3.5-turbo 1106)": "OpenAI (GPT-3.5-turbo 1106)",
   "OpenAI (GPT-3.5-turbo 0125)": "OpenAI (GPT-3.5-turbo 0125)",
   "OpenAI (GPT-4-8k 0613)": "OpenAI (GPT-4-8k 0613)",

src/config/index.mjs

@@ -106,6 +106,7 @@ export const claudeApiModelKeys = [
   'claudeSonnet5Api',
   'claudeSonnet55Api',
   'claudeHaiku45Api',
+  'claudeHaiku55Api',
 ]
 export const chatglmApiModelKeys = [
   'chatglm52',
@@ -404,6 +405,10 @@ export const Models = {
     value: 'claude-haiku-4-5-20251001',
     desc: 'Anthropic (Claude Haiku 4.5)',
   },
+  claudeHaiku55Api: {
+    value: 'claude-haiku-5-5',
+    desc: 'Anthropic (Claude Haiku 5.5)',
+  },
 
   bingFree4: { value: '', desc: 'Bing (Web, GPT-4)' },
   bingFreeSydney: { value: '', desc: 'Bing (Web, GPT-4, Sydney)' },
@@ -785,7 +790,7 @@ export const defaultApiModeIds = [
   'claudeFable51Api',
   'claudeOpus55Api',
   'claudeSonnet55Api',
-  'claudeHaiku45Api',
+  'claudeHaiku55Api',
   'googleGemini3_1Pro',
   'googleGemini3_8Flash',
   'mistralMediumLatest',

src/services/apis/temperature-params.mjs

@@ -5,6 +5,7 @@ const MODELS_WITHOUT_CUSTOM_TEMPERATURE = new Set([
   'claude-sonnet-5-5',
   'claude-opus-5',
   'claude-opus-5-5',
+  'claude-haiku-5-5',
   'claude-fable-5',
   'claude-fable-5-1',
   'gpt-6-astra',

tests/unit/config/config-predicates.test.mjs

@@ -58,7 +58,11 @@ const representativeChatgptApiModelNames = [
   'chatgptApi6_1Sol',
 ]
 const representativeGptCompletionApiModelNames = ['gptApiInstruct']
-const representativeClaudeApiModelNames = ['claudeOpus48Api', 'claudeSonnet46Api']
+const representativeClaudeApiModelNames = [
+  'claudeOpus48Api',
+  'claudeSonnet46Api',
+  'claudeHaiku55Api',
+]
 const representativeOpenRouterApiModelNames = [
   'openRouter_anthropic_claude_sonnet4_6',
   'openRouter_openai_gpt_5_5',
@@ -94,6 +98,12 @@ test('GPT-6 defaults use GPT-6.1 Sol and GPT-6 Luna', () => {
   assert.equal(defaultApiModeIds.includes('chatgptApi5_6Luna'), false)
 })
 
+test('Claude defaults use Haiku 5.5 and keep Haiku 4.5 selectable', () => {
+  assert.equal(defaultApiModeIds.includes('claudeHaiku55Api'), true)
+  assert.equal(defaultApiModeIds.includes('claudeHaiku45Api'), false)
+  assert.ok(claudeApiModelKeys.includes('claudeHaiku45Api'))
+})
+
 test('getNavigatorLanguage returns zh-Hant for zh-TW style locales', () => {
   setNavigatorLanguage('zh-TW')
   assert.equal(getNavigatorLanguage(), 'zh-Hant')

tests/unit/services/apis/claude-api.test.mjs

@@ -186,6 +186,7 @@ test('claude-api: omits temperature for models that reject custom sampling', asy
     ['claudeOpus55Api', 'claude-opus-5-5'],
     ['claudeSonnet5Api', 'claude-sonnet-5'],
     ['claudeSonnet55Api', 'claude-sonnet-5-5'],
+    ['claudeHaiku55Api', 'claude-haiku-5-5'],
   ]) {
     await t.test(modelName, async (t) => {
       setStorage({

tests/unit/services/apis/temperature-params.test.mjs

@@ -39,6 +39,10 @@ test('temperature overrides omit known Anthropic models across provider ID forma
     'claude-opus-5',
     'claude-opus-5-5',
     'anthropic/claude-opus-5.5',
+    'claude-haiku-5-5',
+    'anthropic/claude-haiku-5.5',
+    'claude-haiku-5-5-20261007',
+    'anthropic/claude-haiku-5.5:free',
     'claude-fable-5',
     'claude-fable-5-1',
     'anthropic/claude-fable-5.1',
@@ -51,6 +55,8 @@ test('temperature overrides omit known Anthropic models across provider ID forma
     )
   }
   assert.equal(canApplyTemperatureOverride('claude-opus-4-6'), true)
+  assert.equal(canApplyTemperatureOverride('claude-haiku-5-50'), true)
+  assert.equal(canApplyTemperatureOverride('my-claude-haiku-5-5'), true)
 })
 
 test('temperature overrides omit Gemini models with deprecated sampling parameters', () => {

tests/unit/utils/model-name-convert.test.mjs

@@ -795,6 +795,10 @@ test('modelNameToDesc returns desc for stable GPT API presets', () => {
   assert.equal(modelNameToDesc('chatgptApi6_1Sol'), 'OpenAI (GPT-6.1 Sol)')
 })
 
+test('modelNameToDesc returns desc for the Claude Haiku 5.5 API preset', () => {
+  assert.equal(modelNameToDesc('claudeHaiku55Api'), 'Anthropic (Claude Haiku 5.5)')
+})
+
 test('modelNameToDesc appends extraCustomModelName for customModel', () => {
   const desc = modelNameToDesc('customModel', null, 'my-gpt')
   assert.equal(desc, 'Custom Model (my-gpt)')