Grok 4.20 Multi Agent Beta API Pricing
As of October 10, 2026, Grok 4.20 Multi Agent Beta costs $1.25 per 1M input tokens and $2.50 per 1M output tokens on xAI, with cache reads at $0.20 per 1M tokens. It has a 1,000,000-token context window and returns up to 1,000,000 tokens per response.
- Input
- $1.25 / 1M tokens
- Output
- $2.50 / 1M tokens
- Cache read
- $0.20 / 1M tokens
- Context window
- 1,000,000 tokens
- Max output
- 1,000,000 tokens
- Providers
- 1
- Added to LiteLLM
- March 2026
Grok 4.20 Multi Agent Beta pricing by provider
2 listings across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.
Other Grok 4.20 Multi Agent Beta prices on xAI
| Input above 200K tokens | $2.50 per 1M tokens |
| Output above 200K tokens | $5.00 per 1M tokens |
| Cache read above 200K tokens | $0.40 per 1M tokens |
What Grok 4.20 Multi Agent Beta costs in practice
1,000 requests with 2,000 input and 500 output tokens each
| xAI | $3.75 |
100 long-document requests with 100,000 input and 2,000 output tokens each
| xAI | $13.00 |
Grok 4.20 Multi Agent Beta features
- Function calling
- Structured output
- Image input
- Reasoning
- Prompt caching
- Web search
Use Grok 4.20 Multi Agent Beta with LiteLLM
Call Grok 4.20 Multi Agent Beta through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/responses. LiteLLM tracks the cost of every request at these prices.
from litellm import completion
response = completion(
model="xai/grok-4.20-multi-agent-beta-0309",
messages=[{"role": "user", "content": "Hello!"}],
)model_list:
- model_name: grok-4.20-multi-agent-beta
litellm_params:
model: xai/grok-4.20-multi-agent-beta-0309
api_key: os.environ/XAI_API_KEYcurl http://0.0.0.0:4000/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sk-1234" \
-d '{
"model": "grok-4.20-multi-agent-beta",
"messages": [{"role": "user", "content": "Hello!"}]
}'Grok 4.20 Multi Agent Beta FAQ
How much does Grok 4.20 Multi Agent Beta cost?
Grok 4.20 Multi Agent Beta costs $1.25 per 1M input tokens and $2.50 per 1M output tokens on xAI, with cache reads at $0.20 per 1M tokens. Above 200K input tokens, input costs $2.50 and output costs $5.00 per 1M tokens.
What is the context window of Grok 4.20 Multi Agent Beta?
Grok 4.20 Multi Agent Beta has a 1,000,000-token context window and returns up to 1,000,000 tokens per response.
Which providers offer Grok 4.20 Multi Agent Beta?
Grok 4.20 Multi Agent Beta is available from xAI through LiteLLM, using the model name xai/grok-4.20-multi-agent-beta-0309.
How do I call Grok 4.20 Multi Agent Beta with an OpenAI-compatible API?
Use the LiteLLM Python SDK with model="xai/grok-4.20-multi-agent-beta-0309", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/responses from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.
What features does Grok 4.20 Multi Agent Beta support?
Grok 4.20 Multi Agent Beta supports function calling, structured output, image input, reasoning, prompt caching and web search.
When did LiteLLM add Grok 4.20 Multi Agent Beta?
Grok 4.20 Multi Agent Beta was added to LiteLLM's model price file in March 2026.
Sources
Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:
LiteLLM docs: xAI.
Provider pages: xAI.
