xAI logo

Grok 4.20 Multi-Agent Beta API

x-ai/grok-4.20-multi-agent-beta

Call Grok 4.20 Multi-Agent Beta through UberLLM’s OpenAI-compatible API — from $0.1925/M input and $0.3850/M output, routed automatically to the cheapest healthy seller. xAI · 2,000,000 token context. Fee included.

Try it live — no signup
Demo · a few prompts a day, no sign-up

Grok 4.20 Multi-Agent Beta pricing

Price now · per 1M tokens
Input
$0.1925
Output
$0.385
Cached input
$0.0308
% off list
86% off
60% of input served from cache
List price · per 1M tokens
Input
$1.375
Output
$2.75
Cached input
$0.22
Providers and their list prices, per 1M tokens
ProviderInputOutputCached input
OpenRouter$1.25$2.50$0.20
Venice AI$1.42$2.83$0.23

UberLLM routes every request to the cheapest healthy seller for this model. The price shown includes UberLLM’s 10% fee.

How to use Grok 4.20 Multi-Agent Beta with the OpenAI SDK

Already using the OpenAI SDK? Change one line — the base URL — and call Grok 4.20 Multi-Agent Beta with your existing code. Anthropic SDKs work against https://api.uberllm.dev/v1/messages.

python
from openai import OpenAI

client = OpenAI(
    base_url="https://api.uberllm.dev/v1",
    api_key="ull_your_key_here",
)

resp = client.chat.completions.create(
    model="x-ai/grok-4.20-multi-agent-beta",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

Grok 4.20 Multi-Agent Beta API — FAQ

How much does the Grok 4.20 Multi-Agent Beta API cost?

Grok 4.20 Multi-Agent Beta is listed from $0.1925 per million input tokens and $0.3850 per million output tokens through UberLLM, which routes each request to the cheapest healthy seller on a live marketplace and bills the price shown, which includes UberLLM's 10% fee.

How do I call Grok 4.20 Multi-Agent Beta via API?

Use any OpenAI-compatible SDK: set the base URL to https://api.uberllm.dev/v1, your UberLLM API key, and model "x-ai/grok-4.20-multi-agent-beta". Anthropic SDKs work via https://api.uberllm.dev/v1/messages.

Is Grok 4.20 Multi-Agent Beta OpenAI-compatible on UberLLM?

Yes. Every model on UberLLM — including Grok 4.20 Multi-Agent Beta — is served through one OpenAI-compatible endpoint, so you change only the base URL and key.

More xAI models