x-ai/grok-4.20
2,000,000 context · $2.00/M input tokens · $6.00/M output tokens
Grok 4.20 is xAI's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently...
Pricing
Pay-per-use
No upfront costs, pay only for what you use
Try the model
API Usage
Use the following code examples to integrate with our API:
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://llm.wavespeed.ai/v1"
)
response = client.chat.completions.create(
model="x-ai/grok-4.20",
messages=[
{"role": "user", "content": "Hello!"}
]
)
print(response.choices[0].message.content)Info
Supported Functionality
API Access Guide
Grok 4.20 API
x-ai/grok-4.20
Grok 4.20 is xAI's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently...
Input
$2 /M
Output
$6 /M
Context
2000K
Vision
Supported
Tool Use
Supported
Try Grok 4.20 on WaveSpeedAI
Access Grok 4.20 through our unified API — OpenAI-compatible, no cold starts, transparent pricing.
Frequently Asked Questions about Grok 4.20
How much does Grok 4.20 cost via the API?+
Pricing on WaveSpeedAI: $2.00 per million input tokens and $6.00 per million output tokens. Prompt caching and batch processing are billed separately and reduce effective cost on long, repetitive workloads.
What is the context window of Grok 4.20?+
Grok 4.20 supports up to 2000K tokens of context with up to — tokens of output per request.
Is Grok 4.20 OpenAI-compatible?+
Yes. WaveSpeedAI exposes Grok 4.20 through an OpenAI-compatible endpoint at https://llm.wavespeed.ai/v1. Point the official OpenAI SDK at this base URL with your WaveSpeedAI API key — no other code changes required.
How do I get started with Grok 4.20?+
Sign in to WaveSpeedAI, create an API key in Access Keys, then send a request to https://llm.wavespeed.ai/v1/chat/completions with model id set to the value shown above. New accounts receive free credits to evaluate Grok 4.20 before paying per token.