diff --git a/docs/components/llms/models/xAI.mdx b/docs/components/llms/models/xAI.mdx
index b75b4530c..812a4e650 100644
--- a/docs/components/llms/models/xAI.mdx
+++ b/docs/components/llms/models/xAI.mdx
@@ -5,11 +5,12 @@ description: "Configure xAI Grok models as an LLM provider in Mem0 with API key
[xAI](https://x.ai/) is a new AI company founded by Elon Musk that develops large language models, including Grok. Grok is trained on real-time data from X (formerly Twitter) and aims to provide accurate, up-to-date responses with a touch of wit and humor.
-In order to use LLMs from xAI, go to their [platform](https://console.x.ai) and get the API key. Set the API key as `XAI_API_KEY` environment variable to use the model as given below in the example.
+In order to use LLMs from xAI, go to their [platform](https://console.x.ai) and get the API key. Set the API key as `XAI_API_KEY` environment variable to use the model as given below in the example. You can also optionally set `XAI_API_BASE` to use a different API endpoint (defaults to `https://api.x.ai/v1`).
## Usage
-```python
+
+```python Python
import os
from mem0 import Memory
@@ -37,6 +38,31 @@ messages = [
m.add(messages, user_id="alice", metadata={"category": "movies"})
```
+```typescript TypeScript
+import { Memory } from 'mem0ai/oss';
+
+const config = {
+ llm: {
+ provider: 'xai',
+ config: {
+ apiKey: process.env.XAI_API_KEY || '',
+ model: 'grok-4.3',
+ temperature: 0.1,
+ maxTokens: 2000,
+ },
+ },
+};
+const memory = new Memory(config);
+const messages = [
+ {"role": "user", "content": "I'm planning to watch a movie tonight. Any recommendations?"},
+ {"role": "assistant", "content": "How about thriller movies? They can be quite engaging."},
+ {"role": "user", "content": "Iām not a big fan of thriller movies but I love sci-fi movies."},
+ {"role": "assistant", "content": "Got it! I'll avoid thriller recommendations and suggest sci-fi movies in the future."}
+];
+await memory.add(messages, { userId: 'alice', metadata: { category: 'movies' } });
+```
+
+
## Config
All available parameters for the `xai` config are present in [Master List of All Params in Config](../config).
\ No newline at end of file
diff --git a/mem0-ts/src/oss/src/llms/xai.ts b/mem0-ts/src/oss/src/llms/xai.ts
new file mode 100644
index 000000000..a365a6a3a
--- /dev/null
+++ b/mem0-ts/src/oss/src/llms/xai.ts
@@ -0,0 +1,50 @@
+import { OpenAILLM } from "./openai";
+import { LLMConfig, Message } from "../types";
+import { LLMResponse } from "./base";
+
+/**
+ * xAI (Grok) LLM provider.
+ *
+ * xAI's Grok API is OpenAI-compatible, so this simply reuses {@link OpenAILLM}
+ * and overrides the connection defaults ā mirroring `mem0/llms/xai.py` in the
+ * Python SDK. The API key resolves from `config.apiKey` or the `XAI_API_KEY`
+ * env var, and the base URL from `config.baseURL`, `XAI_API_BASE`, else
+ * `https://api.x.ai/v1`.
+ */
+export class XAILLM extends OpenAILLM {
+ constructor(config: LLMConfig) {
+ const apiKey = config.apiKey || process.env.XAI_API_KEY;
+ if (!apiKey) {
+ throw new Error("xAI API key is required");
+ }
+ super({
+ ...config,
+ apiKey,
+ baseURL:
+ config.baseURL || process.env.XAI_API_BASE || "https://api.x.ai/v1",
+ model: config.model || "grok-4.3",
+ });
+ }
+
+ async generateResponse(
+ messages: Message[],
+ responseFormat?: { type: string },
+ tools?: any[],
+ ): Promise {
+ try {
+ return await super.generateResponse(messages, responseFormat, tools);
+ } catch (err) {
+ const message = err instanceof Error ? err.message : String(err);
+ throw new Error(`xAI LLM failed: ${message}`);
+ }
+ }
+
+ async generateChat(messages: Message[]): Promise {
+ try {
+ return await super.generateChat(messages);
+ } catch (err) {
+ const message = err instanceof Error ? err.message : String(err);
+ throw new Error(`xAI LLM failed: ${message}`);
+ }
+ }
+}
diff --git a/mem0-ts/src/oss/src/utils/factory.ts b/mem0-ts/src/oss/src/utils/factory.ts
index 1a9526f74..d4e5f4f61 100644
--- a/mem0-ts/src/oss/src/utils/factory.ts
+++ b/mem0-ts/src/oss/src/utils/factory.ts
@@ -24,6 +24,7 @@ import { ValkeyDB } from "../vector_stores/valkey";
import { OllamaLLM } from "../llms/ollama";
import { LMStudioLLM } from "../llms/lmstudio";
import { DeepSeekLLM } from "../llms/deepseek";
+import { XAILLM } from "../llms/xai";
import { LiteLLM } from "../llms/litellm";
import { MiniMaxLLM } from "../llms/minimax";
import { VllmLLM } from "../llms/vllm";
@@ -102,6 +103,8 @@ export class LLMFactory {
return new LangchainLLM(config);
case "deepseek":
return new DeepSeekLLM(config);
+ case "xai":
+ return new XAILLM(config);
case "litellm":
return new LiteLLM(config);
case "minimax":
diff --git a/mem0-ts/src/oss/tests/factory.unit.test.ts b/mem0-ts/src/oss/tests/factory.unit.test.ts
index 0b4cdeeb1..490ca43f9 100644
--- a/mem0-ts/src/oss/tests/factory.unit.test.ts
+++ b/mem0-ts/src/oss/tests/factory.unit.test.ts
@@ -102,6 +102,11 @@ jest.mock("../src/llms/deepseek", () => ({
.fn()
.mockImplementation((config) => ({ type: "deepseek-llm", config })),
}));
+jest.mock("../src/llms/xai", () => ({
+ XAILLM: jest
+ .fn()
+ .mockImplementation((config) => ({ type: "xai-llm", config })),
+}));
jest.mock("../src/llms/litellm", () => ({
LiteLLM: jest
.fn()
@@ -258,6 +263,7 @@ describe("LLMFactory", () => {
["langchain"],
["lmstudio"],
["deepseek"],
+ ["xai"],
["litellm"],
["minimax"],
["vllm"],
diff --git a/mem0-ts/src/oss/tests/xai.test.ts b/mem0-ts/src/oss/tests/xai.test.ts
new file mode 100644
index 000000000..eb8ac09f6
--- /dev/null
+++ b/mem0-ts/src/oss/tests/xai.test.ts
@@ -0,0 +1,153 @@
+///
+/**
+ * xAI (Grok) LLM ā unit tests (mocked OpenAI).
+ */
+
+import { XAILLM } from "../src/llms/xai";
+
+const mockCreate = jest.fn();
+const mockOpenAICtor = jest.fn();
+
+jest.mock("openai", () => {
+ return jest.fn().mockImplementation((config) => {
+ mockOpenAICtor(config);
+ return { chat: { completions: { create: mockCreate } } };
+ });
+});
+
+describe("XAILLM (unit)", () => {
+ const ORIGINAL_ENV = process.env;
+
+ beforeEach(() => {
+ jest.clearAllMocks();
+ process.env = { ...ORIGINAL_ENV };
+ delete process.env.XAI_API_KEY;
+ delete process.env.XAI_API_BASE;
+ mockCreate.mockResolvedValue({
+ choices: [{ message: { content: "hi", role: "assistant" } }],
+ });
+ });
+
+ afterAll(() => {
+ process.env = ORIGINAL_ENV;
+ });
+
+ it("defaults to grok-4.3 and the xAI base URL (matching the Python provider)", async () => {
+ const llm = new XAILLM({ apiKey: "test-key" });
+ const result = await llm.generateResponse([
+ { role: "user", content: "hello" },
+ ]);
+
+ expect(mockOpenAICtor).toHaveBeenCalledWith(
+ expect.objectContaining({
+ apiKey: "test-key",
+ baseURL: "https://api.x.ai/v1",
+ }),
+ );
+ expect(mockCreate).toHaveBeenCalledWith(
+ expect.objectContaining({ model: "grok-4.3" }),
+ );
+ expect(result).toBe("hi");
+ });
+
+ it("resolves XAI_API_KEY / XAI_API_BASE from the environment", () => {
+ process.env.XAI_API_KEY = "env-key";
+ process.env.XAI_API_BASE = "https://custom.x.ai/v1";
+
+ new XAILLM({});
+
+ expect(mockOpenAICtor).toHaveBeenCalledWith(
+ expect.objectContaining({
+ apiKey: "env-key",
+ baseURL: "https://custom.x.ai/v1",
+ }),
+ );
+ });
+
+ it("prefers explicit config over defaults and the environment", async () => {
+ process.env.XAI_API_KEY = "env-key";
+
+ const llm = new XAILLM({
+ apiKey: "explicit-key",
+ baseURL: "https://proxy.example.com/v1",
+ model: "grok-420-reasoning",
+ });
+ await llm.generateResponse([{ role: "user", content: "hello" }]);
+
+ expect(mockOpenAICtor).toHaveBeenCalledWith(
+ expect.objectContaining({
+ apiKey: "explicit-key",
+ baseURL: "https://proxy.example.com/v1",
+ }),
+ );
+ expect(mockCreate).toHaveBeenCalledWith(
+ expect.objectContaining({ model: "grok-420-reasoning" }),
+ );
+ });
+
+ it("throws when no API key is provided", () => {
+ expect(() => new XAILLM({})).toThrow("xAI API key is required");
+ });
+
+ it("generateResponse() handles tool calls", async () => {
+ mockCreate.mockResolvedValueOnce({
+ choices: [
+ {
+ message: {
+ content: "",
+ role: "assistant",
+ tool_calls: [
+ {
+ function: { name: "get_weather", arguments: '{"city": "SF"}' },
+ },
+ ],
+ },
+ },
+ ],
+ });
+
+ const llm = new XAILLM({ apiKey: "test-key" });
+ const result = await llm.generateResponse(
+ [{ role: "user", content: "weather?" }],
+ undefined,
+ [{ type: "function", function: { name: "get_weather" } }],
+ );
+
+ expect(result).toEqual({
+ content: "",
+ role: "assistant",
+ toolCalls: [{ name: "get_weather", arguments: '{"city": "SF"}' }],
+ });
+ });
+
+ it("generateResponse() wraps downstream errors with an xAI-specific message", async () => {
+ mockCreate.mockRejectedValueOnce(new Error("Connection refused"));
+ const llm = new XAILLM({ apiKey: "test-key" });
+
+ await expect(
+ llm.generateResponse([{ role: "user", content: "hi" }]),
+ ).rejects.toThrow("xAI LLM failed: Connection refused");
+ });
+
+ it("generateChat() returns the LLMResponse shape", async () => {
+ mockCreate.mockResolvedValueOnce({
+ choices: [{ message: { content: "I can help.", role: "assistant" } }],
+ });
+
+ const llm = new XAILLM({ apiKey: "test-key" });
+ const result = await llm.generateChat([
+ { role: "user", content: "help me" },
+ ]);
+
+ expect(result).toEqual({ content: "I can help.", role: "assistant" });
+ });
+
+ it("generateChat() wraps downstream errors with an xAI-specific message", async () => {
+ mockCreate.mockRejectedValueOnce(new Error("Timeout"));
+ const llm = new XAILLM({ apiKey: "test-key" });
+
+ await expect(
+ llm.generateChat([{ role: "user", content: "hi" }]),
+ ).rejects.toThrow("xAI LLM failed: Timeout");
+ });
+});
diff --git a/mem0/llms/xai.py b/mem0/llms/xai.py
index 8c38e1d07..57a7a3efc 100644
--- a/mem0/llms/xai.py
+++ b/mem0/llms/xai.py
@@ -34,7 +34,7 @@ class XAILLM(LLMBase):
super().__init__(config)
if not self.config.model:
- self.config.model = "grok-2-latest"
+ self.config.model = "grok-4.3"
api_key = self.config.api_key or os.getenv("XAI_API_KEY")
base_url = self.config.xai_base_url or os.getenv("XAI_API_BASE") or "https://api.x.ai/v1"
diff --git a/tests/llms/test_xai.py b/tests/llms/test_xai.py
index 5143064ec..8c5e6c12f 100644
--- a/tests/llms/test_xai.py
+++ b/tests/llms/test_xai.py
@@ -19,19 +19,19 @@ def mock_xai_client():
def test_xai_llm_base_url():
# case1: default
- config = XAIConfig(model="grok-2-latest", api_key="api_key")
+ config = XAIConfig(model="grok-4.3", api_key="api_key")
llm = XAILLM(config)
assert str(llm.client.base_url) == "https://api.x.ai/v1/"
# case2: XAI_API_BASE env var
os.environ["XAI_API_BASE"] = "https://api.provider.com/v1"
- config = XAIConfig(model="grok-2-latest", api_key="api_key")
+ config = XAIConfig(model="grok-4.3", api_key="api_key")
llm = XAILLM(config)
assert str(llm.client.base_url) == "https://api.provider.com/v1/"
# case3: config.xai_base_url wins over env
config = XAIConfig(
- model="grok-2-latest",
+ model="grok-4.3",
api_key="api_key",
xai_base_url="https://api.config.com/v1",
)
@@ -39,16 +39,22 @@ def test_xai_llm_base_url():
assert str(llm.client.base_url) == "https://api.config.com/v1/"
+def test_xai_defaults_to_current_grok_model():
+ # No model supplied -> provider falls back to the current default (grok-4.3).
+ llm = XAILLM(XAIConfig(api_key="k"))
+ assert llm.config.model == "grok-4.3"
+
+
def test_xai_accepts_base_llm_config():
# Used to AttributeError on self.config.xai_base_url because the factory
# wired XAI with plain BaseLlmConfig.
- llm = XAILLM(BaseLlmConfig(model="grok-2-latest", api_key="k"))
+ llm = XAILLM(BaseLlmConfig(model="grok-4.3", api_key="k"))
assert isinstance(llm.config, XAIConfig)
assert llm.config.xai_base_url is None
def test_generate_response_without_tools(mock_xai_client):
- config = XAIConfig(model="grok-2-latest", temperature=0.7, max_tokens=100, top_p=1.0, api_key="api_key")
+ config = XAIConfig(model="grok-4.3", temperature=0.7, max_tokens=100, top_p=1.0, api_key="api_key")
llm = XAILLM(config)
messages = [
{"role": "system", "content": "You are a helpful assistant."},
@@ -62,7 +68,7 @@ def test_generate_response_without_tools(mock_xai_client):
response = llm.generate_response(messages)
mock_xai_client.chat.completions.create.assert_called_once_with(
- model="grok-2-latest",
+ model="grok-4.3",
messages=messages,
temperature=0.7,
max_tokens=100,
@@ -72,7 +78,7 @@ def test_generate_response_without_tools(mock_xai_client):
def test_generate_response_with_tools(mock_xai_client):
- config = XAIConfig(model="grok-2-latest", temperature=0.7, max_tokens=100, top_p=1.0, api_key="api_key")
+ config = XAIConfig(model="grok-4.3", temperature=0.7, max_tokens=100, top_p=1.0, api_key="api_key")
llm = XAILLM(config)
messages = [
{"role": "system", "content": "You are a helpful assistant."},
@@ -106,7 +112,7 @@ def test_generate_response_with_tools(mock_xai_client):
response = llm.generate_response(messages, tools=tools)
mock_xai_client.chat.completions.create.assert_called_once_with(
- model="grok-2-latest",
+ model="grok-4.3",
messages=messages,
temperature=0.7,
max_tokens=100,
@@ -121,7 +127,7 @@ def test_generate_response_with_tools(mock_xai_client):
def test_empty_tools_list_not_forwarded(mock_xai_client):
# tools=[] would otherwise get rejected by some OpenAI-compatible backends
- config = XAIConfig(model="grok-2-latest", api_key="api_key")
+ config = XAIConfig(model="grok-4.3", api_key="api_key")
llm = XAILLM(config)
mock_response = Mock()
@@ -138,7 +144,7 @@ def test_empty_tools_list_not_forwarded(mock_xai_client):
def test_tools_requested_but_model_returns_no_calls(mock_xai_client):
# Model can decline to call any tool even when offered
- config = XAIConfig(model="grok-2-latest", api_key="api_key")
+ config = XAIConfig(model="grok-4.3", api_key="api_key")
llm = XAILLM(config)
tools = [{"type": "function", "function": {"name": "f", "parameters": {"type": "object", "properties": {}}}}]
@@ -151,7 +157,7 @@ def test_tools_requested_but_model_returns_no_calls(mock_xai_client):
def test_generate_response_with_response_format(mock_xai_client):
- config = XAIConfig(model="grok-2-latest", temperature=0.7, max_tokens=100, top_p=1.0, api_key="api_key")
+ config = XAIConfig(model="grok-4.3", temperature=0.7, max_tokens=100, top_p=1.0, api_key="api_key")
llm = XAILLM(config)
messages = [
{"role": "system", "content": "You are a memory extraction assistant."},
@@ -165,7 +171,7 @@ def test_generate_response_with_response_format(mock_xai_client):
response = llm.generate_response(messages, response_format={"type": "json_object"})
mock_xai_client.chat.completions.create.assert_called_once_with(
- model="grok-2-latest",
+ model="grok-4.3",
messages=messages,
temperature=0.7,
max_tokens=100,
@@ -176,7 +182,7 @@ def test_generate_response_with_response_format(mock_xai_client):
def test_generate_response_without_response_format(mock_xai_client):
- config = XAIConfig(model="grok-2-latest", api_key="api_key")
+ config = XAIConfig(model="grok-4.3", api_key="api_key")
llm = XAILLM(config)
mock_response = Mock()
@@ -194,7 +200,7 @@ def test_factory_creates_xai_from_dict():
mock_openai.return_value = Mock()
llm = LlmFactory.create(
"xai",
- {"model": "grok-2-latest", "api_key": "k", "xai_base_url": "https://example.com/v1"},
+ {"model": "grok-4.3", "api_key": "k", "xai_base_url": "https://example.com/v1"},
)
assert isinstance(llm, XAILLM)
assert isinstance(llm.config, XAIConfig)
@@ -205,5 +211,5 @@ def test_factory_creates_xai_from_base_config():
# Legacy callers still hand the factory a plain BaseLlmConfig
with patch("mem0.llms.xai.OpenAI") as mock_openai:
mock_openai.return_value = Mock()
- llm = LlmFactory.create("xai", BaseLlmConfig(model="grok-2-latest", api_key="k"))
+ llm = LlmFactory.create("xai", BaseLlmConfig(model="grok-4.3", api_key="k"))
assert isinstance(llm.config, XAIConfig)