feat: Refactor model handling & reasoning effort across navigation, typeahead, OpenAI/Codex providers, API shim, configs, and UI (adds EffortPicker, new mappings/options, unique suggestion IDs, effort utilities; removes deprecated aliases; defaults Codex to gpt-5.4; improves selection logic and status display)

src/services/api/openaiShim.ts

@@ -665,9 +665,11 @@ class OpenAIShimStream {
 
 class OpenAIShimMessages {
   private defaultHeaders: Record<string, string>
+  private reasoningEffort?: 'low' | 'medium' | 'high' | 'xhigh'
 
-  constructor(defaultHeaders: Record<string, string>) {
+  constructor(defaultHeaders: Record<string, string>, reasoningEffort?: 'low' | 'medium' | 'high' | 'xhigh') {
     this.defaultHeaders = defaultHeaders
+    this.reasoningEffort = reasoningEffort
   }
 
   create(
@@ -679,7 +681,7 @@ class OpenAIShimMessages {
     let httpResponse: Response | undefined
 
     const promise = (async () => {
-      const request = resolveProviderRequest({ model: params.model })
+      const request = resolveProviderRequest({ model: params.model, reasoningEffortOverride: self.reasoningEffort })
       const response = await self._doRequest(request, params, options)
       httpResponse = response
 
@@ -1018,9 +1020,11 @@ class OpenAIShimMessages {
 
 class OpenAIShimBeta {
   messages: OpenAIShimMessages
+  reasoningEffort?: 'low' | 'medium' | 'high' | 'xhigh'
 
-  constructor(defaultHeaders: Record<string, string>) {
-    this.messages = new OpenAIShimMessages(defaultHeaders)
+  constructor(defaultHeaders: Record<string, string>, reasoningEffort?: 'low' | 'medium' | 'high' | 'xhigh') {
+    this.messages = new OpenAIShimMessages(defaultHeaders, reasoningEffort)
+    this.reasoningEffort = reasoningEffort
   }
 }
 
@@ -1028,6 +1032,7 @@ export function createOpenAIShimClient(options: {
   defaultHeaders?: Record<string, string>
   maxRetries?: number
   timeout?: number
+  reasoningEffort?: 'low' | 'medium' | 'high' | 'xhigh'
 }): unknown {
   hydrateGithubModelsTokenFromSecureStorage()
 
@@ -1050,7 +1055,7 @@ export function createOpenAIShimClient(options: {
 
   const beta = new OpenAIShimBeta({
     ...(options.defaultHeaders ?? {}),
-  })
+  }, options.reasoningEffort)
 
   return {
     beta,

src/services/api/providerConfig.ts

@@ -20,13 +20,43 @@ const CODEX_ALIAS_MODELS: Record<
     model: 'gpt-5.4',
     reasoningEffort: 'high',
   },
+  'gpt-5.4': {
+    model: 'gpt-5.4',
+    reasoningEffort: 'high',
+  },
+  'gpt-5.3-codex': {
+    model: 'gpt-5.3-codex',
+    reasoningEffort: 'high',
+  },
+  'gpt-5.3-codex-spark': {
+    model: 'gpt-5.3-codex-spark',
+  },
   codexspark: {
     model: 'gpt-5.3-codex-spark',
   },
+  'gpt-5.2-codex': {
+    model: 'gpt-5.2-codex',
+    reasoningEffort: 'high',
+  },
+  'gpt-5.1-codex-max': {
+    model: 'gpt-5.1-codex-max',
+    reasoningEffort: 'high',
+  },
+  'gpt-5.1-codex-mini': {
+    model: 'gpt-5.1-codex-mini',
+  },
+  'gpt-5.4-mini': {
+    model: 'gpt-5.4-mini',
+    reasoningEffort: 'medium',
+  },
+  'gpt-5.2': {
+    model: 'gpt-5.2',
+    reasoningEffort: 'medium',
+  },
 } as const
 
 type CodexAlias = keyof typeof CODEX_ALIAS_MODELS
-type ReasoningEffort = 'low' | 'medium' | 'high'
+type ReasoningEffort = 'low' | 'medium' | 'high' | 'xhigh'
 
 export type ProviderTransport = 'chat_completions' | 'codex_responses'
 
@@ -102,7 +132,7 @@ function decodeJwtPayload(token: string): Record<string, unknown> | undefined {
 function parseReasoningEffort(value: string | undefined): ReasoningEffort | undefined {
   if (!value) return undefined
   const normalized = value.trim().toLowerCase()
-  if (normalized === 'low' || normalized === 'medium' || normalized === 'high') {
+  if (normalized === 'low' || normalized === 'medium' || normalized === 'high' || normalized === 'xhigh') {
     return normalized
   }
   return undefined
@@ -193,6 +223,7 @@ export function resolveProviderRequest(options?: {
   model?: string
   baseUrl?: string
   fallbackModel?: string
+  reasoningEffortOverride?: ReasoningEffort
 }): ResolvedProviderRequest {
   const isGithubMode = isEnvTruthy(process.env.CLAUDE_CODE_USE_GITHUB)
   const requestedModel =
@@ -217,6 +248,11 @@ export function resolveProviderRequest(options?: {
       ? normalizeGithubModelsApiModel(requestedModel)
       : descriptor.baseModel
 
+  const reasoning = options?.reasoningEffortOverride
+    ? { effort: options.reasoningEffortOverride }
+    : descriptor.reasoning
+
+
   return {
     transport,
     requestedModel,
@@ -227,7 +263,7 @@ export function resolveProviderRequest(options?: {
           ? DEFAULT_CODEX_BASE_URL
           : DEFAULT_OPENAI_BASE_URL)
       ).replace(/\/+$/, ''),
-    reasoning: descriptor.reasoning,
+    reasoning,
   }
 }
 
@@ -336,3 +372,11 @@ export function resolveCodexApiCredentials(
     source: 'auth.json',
   }
 }
+
+export function getReasoningEffortForModel(model: string): ReasoningEffort | undefined {
+  const normalized = model.trim().toLowerCase()
+  const base = normalized.split('?', 1)[0] ?? normalized
+  const alias = base as CodexAlias
+  const aliasConfig = CODEX_ALIAS_MODELS[alias]
+  return aliasConfig?.reasoningEffort
+}