Grok 4.3

Grok 4.3 is xAI's current flagship, its most capable and fastest model, with strengths in low-hallucination reasoning and agentic tool-calling. It offers a 1M-token context window and native handling of real-time information. Reach for it when you want xAI-lineage frontier quality for agents, research, and tasks that benefit from up-to-date knowledge.

Quick start

Use any OpenAI-compatible client. Just change base_url and your key.

from openai import OpenAI

client = OpenAI(
    api_key="tl-xxxxxxxxxxxxxxxxxxxxxxxx",
    base_url="https://api.thalam.ai/v1",
)

response = client.chat.completions.create(
    model="xai/grok-4.3",
    messages=[
        {"role": "user", "content": "Hello from Thalam!"}
    ],
)

print(response.choices[0].message.content)