xAI

xAI's Grok models are built for speed and real-world reasoning tasks, with dedicated reasoning variants and a focus on low-latency, high-throughput production workloads.

• ✓Grok 4 and 3 series with dedicated reasoning and fast inference variants
• ✓Low-latency, high-throughput design for production workloads
• ✓Vision support (Grok 4, Grok 4.1 Fast) for image understanding
• ✓Tool use and JSON mode across all models

Quickstart

from openai import OpenAI

client = OpenAI(
    base_url="https://api.therouter.ai/v1",
    api_key="YOUR_THEROUTER_KEY",
)

response = client.chat.completions.create(
    model="xai/grok-4",
    messages=[{"role": "user", "content": "What is the current state of fusion energy?"}],
    max_tokens=512,
)
print(response.choices[0].message.content)

Use the global api.therouter.ai endpoint for new integrations; the legacy China accelerated endpoint is retired.