xAI · Single modalityReleased 2025-08-28

grok-code-fast-1

xai/grok-code-fast-1 id

xAI's latest coding model that offers fast agentic coding with a 256K context window.

ReasoningTool use
Type
Use grok-code-fast-1
# Drop-in OpenAI-compatible client
$ import { generateText } from 'ai'
$
$ const { text } = await generateText({
$ model: 'xai/grok-code-fast-1',
$ baseURL: 'https://synapse.garden/api/v1',
$ apiKey: process.env.MG_KEY,
$ prompt: 'Why is the sky blue?',
$ })
256K
CONTEXT WINDOW
256K
MAX OUTPUT
$0.220/M
INPUT · PER M
$1.65/M
OUTPUT · PER M
PRICING

List prices, every modality.

RatePer million tokens · USD
Input$0.220/M
Output$1.65/M
Cache read$0.022/M
Honest list pricesHow we calculate prices
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FAQ · GROK-CODE-FAST-1

Frequently asked

01 / 04

How do I call grok-code-fast-1 from my code?

Use the OpenAI or Anthropic SDK and point baseURL at https://synapse.garden/api/v1. Set model: ‘xai/grok-code-fast-1 and supply your Synapse Garden API key. No code changes beyond the base URL.

02 / 04

How much does grok-code-fast-1 cost?

Input: $0.220/M per million tokens. Output: $1.65/M per million tokens. The free tier includes a million tokens every month at no cost.

03 / 04

What's the context window for grok-code-fast-1?

grok-code-fast-1 supports a context window of 256K tokens, with a maximum output of 256K tokens.

04 / 04

Do I need a separate Anthropic or OpenAI account?

No. Synapse Garden is the single API surface — one key gives you OpenAI, Anthropic, Google, Meta, Mistral, DeepSeek, xAI, Cohere, and more. Billing, rate limits, and audit logs are unified.

READY

Try grok-code-fast-1 in three minutes.

Sign up, create a key, drop our base URL into your existing client. The free tier includes a million tokens every month — no credit card.