fix: latest changes to enable gpt 5 models

Author: MichielMAnalytics

packages/api/src/endpoints/openai/llm.ts

@@ -1,6 +1,8 @@
 import { HttpsProxyAgent } from 'https-proxy-agent';
-import { KnownEndpoints } from 'librechat-data-provider';
-import type { AzureOpenAIInput } from '@langchain/azure-openai';
+import { KnownEndpoints, ReasoningEffort, ReasoningSummary, Verbosity } from 'librechat-data-provider';
+import type { AzureOpenAIInput } from '@langchain/openai';
+import type { BindToolsInput } from '@langchain/core/language_models/chat_models';
+import type { OpenAI } from 'openai';
 import type * as t from '~/types';
 import { sanitizeModelName, constructAzureURL } from '~/utils/azure';
 import { isEnabled } from '~/utils/common';
@@ -82,7 +84,7 @@ function hasReasoningParams({
  */
 export function getOpenAIConfig(
   apiKey: string,
-  options: t.LLMConfigOptions = {},
+  options: t.OpenAIConfigOptions = {},
   endpoint?: string | null,
 ): t.LLMConfigResult {
   const {
@@ -174,18 +176,18 @@ export function getOpenAIConfig(
 
   // Handle reasoning parameters for Responses API
   if (hasReasoningParams({ reasoning_effort, reasoning_summary })) {
-    if (reasoning_effort && reasoning_effort !== '') {
+    if (reasoning_effort != null && reasoning_effort !== ReasoningEffort.none) {
       modelKwargs.reasoning_effort = reasoning_effort;
       hasModelKwargs = true;
     }
-    if (reasoning_summary && reasoning_summary !== '') {
+    if (reasoning_summary != null && reasoning_summary !== ReasoningSummary.none) {
       modelKwargs.reasoning_summary = reasoning_summary;
       hasModelKwargs = true;
     }
   }
 
   // Add verbosity parameter
-  if (verbosity && verbosity !== '') {
+  if (verbosity != null && verbosity !== Verbosity.none) {
     modelKwargs.verbosity = verbosity;
     hasModelKwargs = true;
   }
@@ -256,7 +258,7 @@ export function getOpenAIConfig(
 
   if (useOpenRouter && llmConfig.reasoning_effort != null) {
     llmConfig.reasoning = {
-      effort: llmConfig.reasoning_effort,
+      effort: llmConfig.reasoning_effort as any,
     };
     delete llmConfig.reasoning_effort;
   }
@@ -270,10 +272,22 @@ export function getOpenAIConfig(
     llmConfig.modelKwargs = modelKwargs;
   }
 
+  const tools: BindToolsInput[] = [];
+
+  if (modelOptions.web_search) {
+    llmConfig.useResponsesApi = true;
+    tools.push({ type: 'web_search_preview' });
+  }
+
   const result: t.LLMConfigResult = {
     llmConfig,
     configOptions,
+    tools,
   };
 
+  if (useOpenRouter) {
+    result.provider = 'openrouter';
+  }
+
   return result;
 }

packages/api/src/types/openai.ts

@@ -2,14 +2,15 @@ import { z } from 'zod';
 import { openAISchema, EModelEndpoint } from 'librechat-data-provider';
 import type { TEndpointOption, TAzureConfig, TEndpoint } from 'librechat-data-provider';
 import type { OpenAIClientOptions } from '@librechat/agents';
+import type { BindToolsInput } from '@langchain/core/language_models/chat_models';
 import type { AzureOptions } from './azure';
 
 export type OpenAIParameters = z.infer<typeof openAISchema>;
 
 /**
  * Configuration options for the getLLMConfig function
  */
-export interface LLMConfigOptions {
+export interface OpenAIConfigOptions {
   modelOptions?: Partial<OpenAIParameters>;
   reverseProxyUrl?: string;
   defaultQuery?: Record<string, string | undefined>;
@@ -21,7 +22,14 @@ export interface LLMConfigOptions {
   dropParams?: string[];
 }
 
-export type OpenAIConfiguration = OpenAIClientOptions['configuration'];
+export interface LLMConfigOptions extends OpenAIConfigOptions {}
+
+export type OpenAIConfiguration = OpenAIClientOptions['configuration'] & {
+  fetchOptions?: {
+    dispatcher?: any;
+  };
+  httpAgent?: any;
+};
 
 export type ClientOptions = OpenAIClientOptions & {
   include_reasoning?: boolean;
@@ -33,6 +41,8 @@ export type ClientOptions = OpenAIClientOptions & {
 export interface LLMConfigResult {
   llmConfig: ClientOptions;
   configOptions: OpenAIConfiguration;
+  tools?: BindToolsInput[];
+  provider?: string;
 }
 
 /**

packages/data-provider/src/config.ts

@@ -936,6 +936,9 @@ export const alternateName = {
 const sharedOpenAIModels = [
   'gpt-4o-mini',
   'gpt-4o',
+  'gpt-5',
+  'gpt-5-mini',
+  'gpt-5-nano',
   'gpt-4.5-preview',
   'gpt-4.5-preview-2025-02-27',
   'gpt-3.5-turbo',