diff --git a/.changeset/add-ai-utils-package.md b/.changeset/add-ai-utils-package.md
deleted file mode 100644
index c5cdcddee2..0000000000
--- a/.changeset/add-ai-utils-package.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@tanstack/ai-utils': minor
----
-
-New package: shared provider-agnostic utilities for TanStack AI adapters. Includes `generateId`, `getApiKeyFromEnv`, `transformNullsToUndefined`, and `ModelMeta` types with `defineModelMeta` validation helper. Zero runtime dependencies.
diff --git a/.changeset/add-openai-base-package.md b/.changeset/add-openai-base-package.md
deleted file mode 100644
index b549fe322f..0000000000
--- a/.changeset/add-openai-base-package.md
+++ /dev/null
@@ -1,5 +0,0 @@
----
-'@tanstack/openai-base': minor
----
-
-New package: shared base adapters and utilities for OpenAI-compatible providers. Includes Chat Completions and Responses API text adapter base classes, image/summarize/transcription/TTS/video adapter base classes, schema converter, 15 tool converters, and shared types. Providers extend these base classes to reduce duplication and ensure consistent behavior.
diff --git a/.changeset/refactor-providers-to-shared-packages.md b/.changeset/refactor-providers-to-shared-packages.md
deleted file mode 100644
index fdbaac062f..0000000000
--- a/.changeset/refactor-providers-to-shared-packages.md
+++ /dev/null
@@ -1,13 +0,0 @@
----
-'@tanstack/ai-openai': patch
-'@tanstack/ai-grok': patch
-'@tanstack/ai-groq': patch
-'@tanstack/ai-openrouter': patch
-'@tanstack/ai-ollama': patch
-'@tanstack/ai-anthropic': patch
-'@tanstack/ai-gemini': patch
-'@tanstack/ai-fal': patch
-'@tanstack/ai-elevenlabs': patch
----
-
-Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical.
diff --git a/examples/ts-svelte-chat/CHANGELOG.md b/examples/ts-svelte-chat/CHANGELOG.md
index 85fdf42bf7..e19da44f4a 100644
--- a/examples/ts-svelte-chat/CHANGELOG.md
+++ b/examples/ts-svelte-chat/CHANGELOG.md
@@ -1,5 +1,15 @@
 # ts-svelte-chat
 
+## 0.1.40
+
+### Patch Changes
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-openai@0.8.4
+  - @tanstack/ai-ollama@0.6.12
+  - @tanstack/ai-anthropic@0.8.5
+  - @tanstack/ai-gemini@0.10.2
+
 ## 0.1.39
 
 ### Patch Changes
diff --git a/examples/ts-svelte-chat/package.json b/examples/ts-svelte-chat/package.json
index 4374bd000d..2cf13ffdc2 100644
--- a/examples/ts-svelte-chat/package.json
+++ b/examples/ts-svelte-chat/package.json
@@ -1,7 +1,7 @@
 {
   "name": "ts-svelte-chat",
   "private": true,
-  "version": "0.1.39",
+  "version": "0.1.40",
   "type": "module",
   "scripts": {
     "dev": "vite dev --port 3000",
diff --git a/examples/ts-vue-chat/CHANGELOG.md b/examples/ts-vue-chat/CHANGELOG.md
index 39f4ac08e4..b82b66b991 100644
--- a/examples/ts-vue-chat/CHANGELOG.md
+++ b/examples/ts-vue-chat/CHANGELOG.md
@@ -1,5 +1,15 @@
 # ts-vue-chat
 
+## 0.1.40
+
+### Patch Changes
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-openai@0.8.4
+  - @tanstack/ai-ollama@0.6.12
+  - @tanstack/ai-anthropic@0.8.5
+  - @tanstack/ai-gemini@0.10.2
+
 ## 0.1.39
 
 ### Patch Changes
diff --git a/examples/ts-vue-chat/package.json b/examples/ts-vue-chat/package.json
index 2001d03984..910f2dcf6c 100644
--- a/examples/ts-vue-chat/package.json
+++ b/examples/ts-vue-chat/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ts-vue-chat",
-  "version": "0.1.39",
+  "version": "0.1.40",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/packages/typescript/ai-anthropic/CHANGELOG.md b/packages/typescript/ai-anthropic/CHANGELOG.md
index e9c0dc0f8f..3492454ac7 100644
--- a/packages/typescript/ai-anthropic/CHANGELOG.md
+++ b/packages/typescript/ai-anthropic/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-anthropic
 
+## 0.8.5
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+
 ## 0.8.4
 
 ### Patch Changes
diff --git a/packages/typescript/ai-anthropic/package.json b/packages/typescript/ai-anthropic/package.json
index aae16335b0..60e9170ff2 100644
--- a/packages/typescript/ai-anthropic/package.json
+++ b/packages/typescript/ai-anthropic/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-anthropic",
-  "version": "0.8.4",
+  "version": "0.8.5",
   "description": "Anthropic Claude adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-code-mode/models-eval/CHANGELOG.md b/packages/typescript/ai-code-mode/models-eval/CHANGELOG.md
index b302291618..9d5f1890e9 100644
--- a/packages/typescript/ai-code-mode/models-eval/CHANGELOG.md
+++ b/packages/typescript/ai-code-mode/models-eval/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @tanstack/ai-code-mode-models-eval
 
+## 0.0.14
+
+### Patch Changes
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-openai@0.8.4
+  - @tanstack/ai-grok@0.7.2
+  - @tanstack/ai-groq@0.1.10
+  - @tanstack/ai-ollama@0.6.12
+  - @tanstack/ai-anthropic@0.8.5
+  - @tanstack/ai-gemini@0.10.2
+
 ## 0.0.13
 
 ### Patch Changes
diff --git a/packages/typescript/ai-code-mode/models-eval/package.json b/packages/typescript/ai-code-mode/models-eval/package.json
index 2102d9fe79..e24d341353 100644
--- a/packages/typescript/ai-code-mode/models-eval/package.json
+++ b/packages/typescript/ai-code-mode/models-eval/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-code-mode-models-eval",
-  "version": "0.0.13",
+  "version": "0.0.14",
   "private": true,
   "type": "module",
   "description": "Dev benchmark: local/cloud models vs code-mode database-demo gold (not published)",
diff --git a/packages/typescript/ai-elevenlabs/CHANGELOG.md b/packages/typescript/ai-elevenlabs/CHANGELOG.md
index 55b305371f..4e5eb52977 100644
--- a/packages/typescript/ai-elevenlabs/CHANGELOG.md
+++ b/packages/typescript/ai-elevenlabs/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-elevenlabs
 
+## 0.2.2
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+
 ## 0.2.1
 
 ### Patch Changes
diff --git a/packages/typescript/ai-elevenlabs/package.json b/packages/typescript/ai-elevenlabs/package.json
index 45e2d128ec..3ef3cbebe4 100644
--- a/packages/typescript/ai-elevenlabs/package.json
+++ b/packages/typescript/ai-elevenlabs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-elevenlabs",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "ElevenLabs adapter for TanStack AI realtime voice",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-fal/CHANGELOG.md b/packages/typescript/ai-fal/CHANGELOG.md
index aa5294579c..4149073cae 100644
--- a/packages/typescript/ai-fal/CHANGELOG.md
+++ b/packages/typescript/ai-fal/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-fal
 
+## 0.7.2
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+
 ## 0.7.1
 
 ### Patch Changes
diff --git a/packages/typescript/ai-fal/package.json b/packages/typescript/ai-fal/package.json
index 32e9489901..01432759f4 100644
--- a/packages/typescript/ai-fal/package.json
+++ b/packages/typescript/ai-fal/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-fal",
-  "version": "0.7.1",
+  "version": "0.7.2",
   "description": "fal.ai adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-gemini/CHANGELOG.md b/packages/typescript/ai-gemini/CHANGELOG.md
index a87d097668..3853c3fb07 100644
--- a/packages/typescript/ai-gemini/CHANGELOG.md
+++ b/packages/typescript/ai-gemini/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-gemini
 
+## 0.10.2
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+
 ## 0.10.1
 
 ### Patch Changes
diff --git a/packages/typescript/ai-gemini/package.json b/packages/typescript/ai-gemini/package.json
index ad53cc42c0..32f2287872 100644
--- a/packages/typescript/ai-gemini/package.json
+++ b/packages/typescript/ai-gemini/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-gemini",
-  "version": "0.10.1",
+  "version": "0.10.2",
   "description": "Google Gemini adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-grok/CHANGELOG.md b/packages/typescript/ai-grok/CHANGELOG.md
index d8da59b864..c9c3527585 100644
--- a/packages/typescript/ai-grok/CHANGELOG.md
+++ b/packages/typescript/ai-grok/CHANGELOG.md
@@ -1,5 +1,15 @@
 # @tanstack/ai-grok
 
+## 0.7.2
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e), [`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+  - @tanstack/openai-base@0.2.0
+
 ## 0.7.1
 
 ### Patch Changes
diff --git a/packages/typescript/ai-grok/package.json b/packages/typescript/ai-grok/package.json
index 8c3ccfc980..af1527645f 100644
--- a/packages/typescript/ai-grok/package.json
+++ b/packages/typescript/ai-grok/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-grok",
-  "version": "0.7.1",
+  "version": "0.7.2",
   "description": "Grok (xAI) adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-groq/CHANGELOG.md b/packages/typescript/ai-groq/CHANGELOG.md
index a1508b45aa..5fd97d1be9 100644
--- a/packages/typescript/ai-groq/CHANGELOG.md
+++ b/packages/typescript/ai-groq/CHANGELOG.md
@@ -1,5 +1,15 @@
 # @tanstack/ai-groq
 
+## 0.1.10
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e), [`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+  - @tanstack/openai-base@0.2.0
+
 ## 0.1.9
 
 ### Patch Changes
diff --git a/packages/typescript/ai-groq/package.json b/packages/typescript/ai-groq/package.json
index 8ed6a98ba4..ec8cc05b18 100644
--- a/packages/typescript/ai-groq/package.json
+++ b/packages/typescript/ai-groq/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-groq",
-  "version": "0.1.9",
+  "version": "0.1.10",
   "type": "module",
   "description": "Groq adapter for TanStack AI",
   "author": "",
diff --git a/packages/typescript/ai-ollama/CHANGELOG.md b/packages/typescript/ai-ollama/CHANGELOG.md
index 8d75f8516e..50a2a565c7 100644
--- a/packages/typescript/ai-ollama/CHANGELOG.md
+++ b/packages/typescript/ai-ollama/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-ollama
 
+## 0.6.12
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+
 ## 0.6.11
 
 ### Patch Changes
diff --git a/packages/typescript/ai-ollama/package.json b/packages/typescript/ai-ollama/package.json
index 17782bb536..393334169f 100644
--- a/packages/typescript/ai-ollama/package.json
+++ b/packages/typescript/ai-ollama/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-ollama",
-  "version": "0.6.11",
+  "version": "0.6.12",
   "description": "Ollama adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-openai/CHANGELOG.md b/packages/typescript/ai-openai/CHANGELOG.md
index 165bf98361..f122b8ee9b 100644
--- a/packages/typescript/ai-openai/CHANGELOG.md
+++ b/packages/typescript/ai-openai/CHANGELOG.md
@@ -1,5 +1,15 @@
 # @tanstack/ai-openai
 
+## 0.8.4
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e), [`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+  - @tanstack/openai-base@0.2.0
+
 ## 0.8.3
 
 ### Patch Changes
diff --git a/packages/typescript/ai-openai/package.json b/packages/typescript/ai-openai/package.json
index b5163c3487..de76183656 100644
--- a/packages/typescript/ai-openai/package.json
+++ b/packages/typescript/ai-openai/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-openai",
-  "version": "0.8.3",
+  "version": "0.8.4",
   "description": "OpenAI adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-openrouter/CHANGELOG.md b/packages/typescript/ai-openrouter/CHANGELOG.md
index 934e621497..c20791e104 100644
--- a/packages/typescript/ai-openrouter/CHANGELOG.md
+++ b/packages/typescript/ai-openrouter/CHANGELOG.md
@@ -1,5 +1,14 @@
 # @tanstack/ai-openrouter
 
+## 0.8.4
+
+### Patch Changes
+
+- Internal refactor: every provider now delegates `getApiKeyFromEnv` / `generateId` / `transformNullsToUndefined` / `ModelMeta` helpers to the new `@tanstack/ai-utils` package. `ai-openai` and `ai-grok` additionally inherit OpenAI-compatible adapter base classes (Chat Completions / Responses text, image, summarize, transcription, TTS, video) from the new `@tanstack/openai-base` package; `ai-groq` keeps its own `BaseTextAdapter`-derived text adapter (Groq uses the `groq-sdk`, not the OpenAI SDK) but consumes `@tanstack/openai-base`'s schema converter and tool converters. The remaining providers (`ai-anthropic`, `ai-gemini`, `ai-ollama`, `ai-openrouter`, `ai-fal`, `ai-elevenlabs`) only consume `@tanstack/ai-utils` because they speak provider-native protocols, not OpenAI-compatible ones. No breaking changes — all public APIs remain identical. ([#409](https://github.com/TanStack/ai/pull/409))
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
+
 ## 0.8.3
 
 ### Patch Changes
diff --git a/packages/typescript/ai-openrouter/package.json b/packages/typescript/ai-openrouter/package.json
index 635193aed9..56b97ad2a4 100644
--- a/packages/typescript/ai-openrouter/package.json
+++ b/packages/typescript/ai-openrouter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-openrouter",
-  "version": "0.8.3",
+  "version": "0.8.4",
   "description": "OpenRouter adapter for TanStack AI",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/ai-utils/CHANGELOG.md b/packages/typescript/ai-utils/CHANGELOG.md
new file mode 100644
index 0000000000..17aa431de6
--- /dev/null
+++ b/packages/typescript/ai-utils/CHANGELOG.md
@@ -0,0 +1,7 @@
+# @tanstack/ai-utils
+
+## 0.2.0
+
+### Minor Changes
+
+- New package: shared provider-agnostic utilities for TanStack AI adapters. Includes `generateId`, `getApiKeyFromEnv`, `transformNullsToUndefined`, and `ModelMeta` types with `defineModelMeta` validation helper. Zero runtime dependencies. ([#409](https://github.com/TanStack/ai/pull/409))
diff --git a/packages/typescript/ai-utils/package.json b/packages/typescript/ai-utils/package.json
index 6ccd77a7e7..c2e880bbb2 100644
--- a/packages/typescript/ai-utils/package.json
+++ b/packages/typescript/ai-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/ai-utils",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Shared utilities for TanStack AI adapter packages",
   "author": "",
   "license": "MIT",
diff --git a/packages/typescript/openai-base/CHANGELOG.md b/packages/typescript/openai-base/CHANGELOG.md
new file mode 100644
index 0000000000..b005ab463c
--- /dev/null
+++ b/packages/typescript/openai-base/CHANGELOG.md
@@ -0,0 +1,12 @@
+# @tanstack/openai-base
+
+## 0.2.0
+
+### Minor Changes
+
+- New package: shared base adapters and utilities for OpenAI-compatible providers. Includes Chat Completions and Responses API text adapter base classes, image/summarize/transcription/TTS/video adapter base classes, schema converter, 15 tool converters, and shared types. Providers extend these base classes to reduce duplication and ensure consistent behavior. ([#409](https://github.com/TanStack/ai/pull/409))
+
+### Patch Changes
+
+- Updated dependencies [[`27c9aeb`](https://github.com/TanStack/ai/commit/27c9aeb80993f8262e65ef623a4cc6dadf18817e)]:
+  - @tanstack/ai-utils@0.2.0
diff --git a/packages/typescript/openai-base/package.json b/packages/typescript/openai-base/package.json
index 88950d62d2..0e54a6f5e9 100644
--- a/packages/typescript/openai-base/package.json
+++ b/packages/typescript/openai-base/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tanstack/openai-base",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Shared base adapters and utilities for OpenAI-compatible providers in TanStack AI",
   "author": "",
   "license": "MIT",