diff --git a/.changeset/olive-wolves-love.md b/.changeset/olive-wolves-love.md
new file mode 100644
index 00000000..4c686d77
--- /dev/null
+++ b/.changeset/olive-wolves-love.md
@@ -0,0 +1,5 @@
+---
+'@tanstack/ai-openai': minor
+---
+
+allows additional configuration options when creating an openAI client
diff --git a/packages/typescript/ai-openai/src/adapters/image.ts b/packages/typescript/ai-openai/src/adapters/image.ts
index 4726683a..585e8a72 100644
--- a/packages/typescript/ai-openai/src/adapters/image.ts
+++ b/packages/typescript/ai-openai/src/adapters/image.ts
@@ -3,13 +3,13 @@ import {
   createOpenAIClient,
   generateId,
   getOpenAIApiKeyFromEnv,
-} from '../utils'
+} from '../utils/client'
 import {
   validateImageSize,
   validateNumberOfImages,
   validatePrompt,
 } from '../image/image-provider-options'
-import type { OPENAI_IMAGE_MODELS } from '../model-meta'
+import type { OpenAIImageModel } from '../model-meta'
 import type {
   OpenAIImageModelProviderOptionsByName,
   OpenAIImageModelSizeByName,
@@ -21,16 +21,13 @@ import type {
   ImageGenerationResult,
 } from '@tanstack/ai'
 import type OpenAI_SDK from 'openai'
-import type { OpenAIClientConfig } from '../utils'
+import type { OpenAIClientConfig } from '../utils/client'
 
 /**
  * Configuration for OpenAI image adapter
  */
 export interface OpenAIImageConfig extends OpenAIClientConfig {}
 
-/** Model type for OpenAI Image */
-export type OpenAIImageModel = (typeof OPENAI_IMAGE_MODELS)[number]
-
 /**
  * OpenAI Image Generation Adapter
  *
diff --git a/packages/typescript/ai-openai/src/adapters/summarize.ts b/packages/typescript/ai-openai/src/adapters/summarize.ts
index d507c534..944e8dea 100644
--- a/packages/typescript/ai-openai/src/adapters/summarize.ts
+++ b/packages/typescript/ai-openai/src/adapters/summarize.ts
@@ -1,13 +1,13 @@
 import { BaseSummarizeAdapter } from '@tanstack/ai/adapters'
-import { getOpenAIApiKeyFromEnv } from '../utils'
+import { getOpenAIApiKeyFromEnv } from '../utils/client'
 import { OpenAITextAdapter } from './text'
-import type { OPENAI_CHAT_MODELS } from '../model-meta'
+import type { OpenAIChatModel } from '../model-meta'
 import type {
   StreamChunk,
   SummarizationOptions,
   SummarizationResult,
 } from '@tanstack/ai'
-import type { OpenAIClientConfig } from '../utils'
+import type { OpenAIClientConfig } from '../utils/client'
 
 /**
  * Configuration for OpenAI summarize adapter
@@ -24,9 +24,6 @@ export interface OpenAISummarizeProviderOptions {
   maxTokens?: number
 }
 
-/** Model type for OpenAI summarization */
-export type OpenAISummarizeModel = (typeof OPENAI_CHAT_MODELS)[number]
-
 /**
  * OpenAI Summarize Adapter
  *
@@ -34,7 +31,7 @@ export type OpenAISummarizeModel = (typeof OPENAI_CHAT_MODELS)[number]
  * Delegates all API calls to the OpenAITextAdapter.
  */
 export class OpenAISummarizeAdapter<
-  TModel extends OpenAISummarizeModel,
+  TModel extends OpenAIChatModel,
 > extends BaseSummarizeAdapter<TModel, OpenAISummarizeProviderOptions> {
   readonly kind = 'summarize' as const
   readonly name = 'openai' as const
@@ -133,7 +130,7 @@ export class OpenAISummarizeAdapter<
  * const adapter = createOpenaiSummarize('gpt-4o-mini', "sk-...");
  * ```
  */
-export function createOpenaiSummarize<TModel extends OpenAISummarizeModel>(
+export function createOpenaiSummarize<TModel extends OpenAIChatModel>(
   model: TModel,
   apiKey: string,
   config?: Omit<OpenAISummarizeConfig, 'apiKey'>,
@@ -165,7 +162,7 @@ export function createOpenaiSummarize<TModel extends OpenAISummarizeModel>(
  * });
  * ```
  */
-export function openaiSummarize<TModel extends OpenAISummarizeModel>(
+export function openaiSummarize<TModel extends OpenAIChatModel>(
   model: TModel,
   config?: Omit<OpenAISummarizeConfig, 'apiKey'>,
 ): OpenAISummarizeAdapter<TModel> {
diff --git a/packages/typescript/ai-openai/src/adapters/text.ts b/packages/typescript/ai-openai/src/adapters/text.ts
index 8ca7cfd5..e48fc2cd 100644
--- a/packages/typescript/ai-openai/src/adapters/text.ts
+++ b/packages/typescript/ai-openai/src/adapters/text.ts
@@ -5,11 +5,14 @@ import {
   createOpenAIClient,
   generateId,
   getOpenAIApiKeyFromEnv,
+} from '../utils/client'
+import {
   makeOpenAIStructuredOutputCompatible,
   transformNullsToUndefined,
-} from '../utils'
+} from '../utils/schema-converter'
 import type {
   OPENAI_CHAT_MODELS,
+  OpenAIChatModel,
   OpenAIChatModelProviderOptionsByName,
   OpenAIModelInputModalitiesByName,
 } from '../model-meta'
@@ -34,7 +37,7 @@ import type {
   OpenAIImageMetadata,
   OpenAIMessageMetadataByModality,
 } from '../message-types'
-import type { OpenAIClientConfig } from '../utils'
+import type { OpenAIClientConfig } from '../utils/client'
 
 /**
  * Configuration for OpenAI text adapter
@@ -79,7 +82,7 @@ type ResolveInputModalities<TModel extends string> =
  * Import only what you need for smaller bundle sizes.
  */
 export class OpenAITextAdapter<
-  TModel extends (typeof OPENAI_CHAT_MODELS)[number],
+  TModel extends OpenAIChatModel,
 > extends BaseTextAdapter<
   TModel,
   ResolveProviderOptions<TModel>,
diff --git a/packages/typescript/ai-openai/src/adapters/transcription.ts b/packages/typescript/ai-openai/src/adapters/transcription.ts
index c59b3eca..796bc0b2 100644
--- a/packages/typescript/ai-openai/src/adapters/transcription.ts
+++ b/packages/typescript/ai-openai/src/adapters/transcription.ts
@@ -3,8 +3,8 @@ import {
   createOpenAIClient,
   generateId,
   getOpenAIApiKeyFromEnv,
-} from '../utils'
-import type { OPENAI_TRANSCRIPTION_MODELS } from '../model-meta'
+} from '../utils/client'
+import type { OpenAITranscriptionModel } from '../model-meta'
 import type { OpenAITranscriptionProviderOptions } from '../audio/transcription-provider-options'
 import type {
   TranscriptionOptions,
@@ -12,17 +12,13 @@ import type {
   TranscriptionSegment,
 } from '@tanstack/ai'
 import type OpenAI_SDK from 'openai'
-import type { OpenAIClientConfig } from '../utils'
+import type { OpenAIClientConfig } from '../utils/client'
 
 /**
  * Configuration for OpenAI Transcription adapter
  */
 export interface OpenAITranscriptionConfig extends OpenAIClientConfig {}
 
-/** Model type for OpenAI Transcription */
-export type OpenAITranscriptionModel =
-  (typeof OPENAI_TRANSCRIPTION_MODELS)[number]
-
 /**
  * OpenAI Transcription (Speech-to-Text) Adapter
  *
diff --git a/packages/typescript/ai-openai/src/adapters/tts.ts b/packages/typescript/ai-openai/src/adapters/tts.ts
index c320b526..2f34e50f 100644
--- a/packages/typescript/ai-openai/src/adapters/tts.ts
+++ b/packages/typescript/ai-openai/src/adapters/tts.ts
@@ -3,13 +3,13 @@ import {
   createOpenAIClient,
   generateId,
   getOpenAIApiKeyFromEnv,
-} from '../utils'
+} from '../utils/client'
 import {
   validateAudioInput,
   validateInstructions,
   validateSpeed,
 } from '../audio/audio-provider-options'
-import type { OPENAI_TTS_MODELS } from '../model-meta'
+import type { OpenAITTSModel } from '../model-meta'
 import type {
   OpenAITTSFormat,
   OpenAITTSProviderOptions,
@@ -17,16 +17,13 @@ import type {
 } from '../audio/tts-provider-options'
 import type { TTSOptions, TTSResult } from '@tanstack/ai'
 import type OpenAI_SDK from 'openai'
-import type { OpenAIClientConfig } from '../utils'
+import type { OpenAIClientConfig } from '../utils/client'
 
 /**
  * Configuration for OpenAI TTS adapter
  */
 export interface OpenAITTSConfig extends OpenAIClientConfig {}
 
-/** Model type for OpenAI TTS */
-export type OpenAITTSModel = (typeof OPENAI_TTS_MODELS)[number]
-
 /**
  * OpenAI Text-to-Speech Adapter
  *
diff --git a/packages/typescript/ai-openai/src/adapters/video.ts b/packages/typescript/ai-openai/src/adapters/video.ts
index bf0693c5..c0c2aaa2 100644
--- a/packages/typescript/ai-openai/src/adapters/video.ts
+++ b/packages/typescript/ai-openai/src/adapters/video.ts
@@ -1,12 +1,12 @@
 import { BaseVideoAdapter } from '@tanstack/ai/adapters'
-import { createOpenAIClient, getOpenAIApiKeyFromEnv } from '../utils'
+import { createOpenAIClient, getOpenAIApiKeyFromEnv } from '../utils/client'
 import {
   toApiSeconds,
   validateVideoSeconds,
   validateVideoSize,
 } from '../video/video-provider-options'
 import type { VideoModel } from 'openai/resources'
-import type { OPENAI_VIDEO_MODELS } from '../model-meta'
+import type { OpenAIVideoModel } from '../model-meta'
 import type {
   OpenAIVideoModelProviderOptionsByName,
   OpenAIVideoProviderOptions,
@@ -18,7 +18,7 @@ import type {
   VideoUrlResult,
 } from '@tanstack/ai'
 import type OpenAI_SDK from 'openai'
-import type { OpenAIClientConfig } from '../utils'
+import type { OpenAIClientConfig } from '../utils/client'
 
 /**
  * Configuration for OpenAI video adapter.
@@ -27,9 +27,6 @@ import type { OpenAIClientConfig } from '../utils'
  */
 export interface OpenAIVideoConfig extends OpenAIClientConfig {}
 
-/** Model type for OpenAI Video */
-export type OpenAIVideoModel = (typeof OPENAI_VIDEO_MODELS)[number]
-
 /**
  * OpenAI Video Generation Adapter
  *
diff --git a/packages/typescript/ai-openai/src/index.ts b/packages/typescript/ai-openai/src/index.ts
index cf2759f2..ffba8da8 100644
--- a/packages/typescript/ai-openai/src/index.ts
+++ b/packages/typescript/ai-openai/src/index.ts
@@ -78,6 +78,11 @@ export type { OpenAITranscriptionProviderOptions } from './audio/transcription-p
 export type {
   OpenAIChatModelProviderOptionsByName,
   OpenAIModelInputModalitiesByName,
+  OpenAIChatModel,
+  OpenAIImageModel,
+  OpenAIVideoModel,
+  OpenAITTSModel,
+  OpenAITranscriptionModel,
 } from './model-meta'
 export {
   OPENAI_IMAGE_MODELS,
@@ -94,3 +99,4 @@ export type {
   OpenAIDocumentMetadata,
   OpenAIMessageMetadataByModality,
 } from './message-types'
+export type { OpenAIClientConfig } from './utils/client'
diff --git a/packages/typescript/ai-openai/src/model-meta.ts b/packages/typescript/ai-openai/src/model-meta.ts
index d6ed3312..3557a9b4 100644
--- a/packages/typescript/ai-openai/src/model-meta.ts
+++ b/packages/typescript/ai-openai/src/model-meta.ts
@@ -1696,6 +1696,8 @@ export const OPENAI_CHAT_MODELS = [
   O1_PRO.name,
 ] as const
 
+export type OpenAIChatModel = (typeof OPENAI_CHAT_MODELS)[number]
+
 // Image generation models (based on endpoints: "image-generation" or "image-edit")
 export const OPENAI_IMAGE_MODELS = [
   GPT_IMAGE_1.name,
@@ -1704,6 +1706,8 @@ export const OPENAI_IMAGE_MODELS = [
   DALL_E_2.name,
 ] as const
 
+export type OpenAIImageModel = (typeof OPENAI_IMAGE_MODELS)[number]
+
 // Audio models (based on endpoints: "transcription", "speech_generation", or "realtime")
 /* const OPENAI_AUDIO_MODELS = [
   // Transcription models
@@ -1734,6 +1738,8 @@ export const OPENAI_IMAGE_MODELS = [
  */
 export const OPENAI_VIDEO_MODELS = [SORA2.name, SORA2_PRO.name] as const
 
+export type OpenAIVideoModel = (typeof OPENAI_VIDEO_MODELS)[number]
+
 /**
  * Text-to-speech models (based on endpoints: "speech_generation")
  */
@@ -1743,6 +1749,8 @@ export const OPENAI_TTS_MODELS = [
   'gpt-4o-audio-preview',
 ] as const
 
+export type OpenAITTSModel = (typeof OPENAI_TTS_MODELS)[number]
+
 /**
  * Transcription models (based on endpoints: "transcription")
  */
@@ -1753,6 +1761,9 @@ export const OPENAI_TRANSCRIPTION_MODELS = [
   'gpt-4o-transcribe-diarize',
 ] as const
 
+export type OpenAITranscriptionModel =
+  (typeof OPENAI_TRANSCRIPTION_MODELS)[number]
+
 /**
  * Type-only map from chat model name to its provider options type.
  * Used by the core AI types (via the adapter) to narrow
diff --git a/packages/typescript/ai-openai/src/utils/client.ts b/packages/typescript/ai-openai/src/utils/client.ts
index 828541e2..3915e2ea 100644
--- a/packages/typescript/ai-openai/src/utils/client.ts
+++ b/packages/typescript/ai-openai/src/utils/client.ts
@@ -1,20 +1,15 @@
 import OpenAI_SDK from 'openai'
+import type { ClientOptions } from 'openai'
 
-export interface OpenAIClientConfig {
+export interface OpenAIClientConfig extends ClientOptions {
   apiKey: string
-  organization?: string
-  baseURL?: string
 }
 
 /**
  * Creates an OpenAI SDK client instance
  */
 export function createOpenAIClient(config: OpenAIClientConfig): OpenAI_SDK {
-  return new OpenAI_SDK({
-    apiKey: config.apiKey,
-    organization: config.organization,
-    baseURL: config.baseURL,
-  })
+  return new OpenAI_SDK(config)
 }
 
 /**
diff --git a/packages/typescript/ai-openai/src/utils/index.ts b/packages/typescript/ai-openai/src/utils/index.ts
deleted file mode 100644
index 8314cf5a..00000000
--- a/packages/typescript/ai-openai/src/utils/index.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-export {
-  createOpenAIClient,
-  getOpenAIApiKeyFromEnv,
-  generateId,
-  type OpenAIClientConfig,
-} from './client'
-export {
-  makeOpenAIStructuredOutputCompatible,
-  transformNullsToUndefined,
-} from './schema-converter'