Grok 3 Fast

xai/grok-3-fast

xai

Optimized for tool calling and agentic tasks. Supports Live Search (+$0.025/source)

Code Examples

from blockrun_llm import LLMClient

client = LLMClient()  # Uses BLOCKRUN_WALLET_KEY (never sent to server)
response = client.chat("xai/grok-3-fast", "Hello!")

Pricing

Input$5.00 / 1M tokens

Output$25.00 / 1M tokens

Context131K tokens

Max Output16K tokens

5% markup on official xai API prices.

Payment

Network

Base

Currency

USDC

Protocol

x402

Pay per request with USDC on Base. No subscription required.

Try It

Send a message to try Grok 3 Fast

Connect your wallet to enable payments