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grok-3-mini-fast-beta API on AvalAI

xai/grok-3-mini-fast-beta

grok-3-mini-fast-beta is an AI model from xAI that is available through AvalAI's OpenAI-compatible API.

Open dashboardCompare

Price display scale

Input price$1.25 / 1M tokens

Output price$2.50 / 1M tokens

Context window131,072 tokens

Maximum output131,072 tokens

Use grok-3-mini-fast-beta with the AvalAI API

Keep the API key in an environment variable and send requests from server-side code.

Bash

curl https://api.avalai.ir/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $AVALAI_API_KEY" \
  -d '{"model": "xai/grok-3-mini-fast-beta", "messages": [{"role": "user", "content": "Give a concise, practical solution."}]}'

Python

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AVALAI_API_KEY"],
    base_url="https://api.avalai.ir/v1",
)

response = client.chat.completions.create(
    model="xai/grok-3-mini-fast-beta",
    messages=[{"role": "user", "content": "Give a concise, practical solution."}],
)

print(response.choices[0].message.content)

JavaScript

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.AVALAI_API_KEY,
  baseURL: "https://api.avalai.ir/v1",
});

const response = await client.chat.completions.create({
  model: "xai/grok-3-mini-fast-beta",
  messages: [{ role: "user", content: "Give a concise, practical solution." }],
});

console.log(response.choices[0].message.content);

Create an API keyRead the quickstart

Capabilities and endpoints

• Function calling
• Prompt caching
• Reasoning
• Tool choice
• Web search

grok-3-mini-fast-beta rate limits

Tier	RPM	TPM
Tier 1	100	800,000
Tier 2	500	2,000,000
Tier 3	800	4,000,000
Tier 4	1,200	6,000,000
Tier 5	1,500	10,000,000

Related models

• grok-3-mini-fast-latest
• grok-3-mini-fast
• grok-3-mini-latest
• grok-3-mini-beta

Frequently asked questions

What is the grok-3-mini-fast-beta API on AvalAI?

Create an AvalAI API key and send the model ID xai/grok-3-mini-fast-beta to one of the supported endpoints shown on this page.

How much does the grok-3-mini-fast-beta API cost on AvalAI?

The grok-3-mini-fast-beta API on AvalAI costs $1.25 per 1M input tokens and $2.50 per 1M output tokens.

What is the token cost for grok-3-mini-fast-beta?

Current AvalAI pricing for grok-3-mini-fast-beta is $1.25 / 1M tokens for input and $2.50 / 1M tokens for output.

What is the grok-3-mini-fast-beta context window?

The recorded maximum input context for grok-3-mini-fast-beta is 131,072 tokens.

What are the rate limits for grok-3-mini-fast-beta on AvalAI?

On tier 5, grok-3-mini-fast-beta on AvalAI supports up to 1,500 requests per minute and 10,000,000 tokens per minute.

What features does grok-3-mini-fast-beta support on AvalAI?

grok-3-mini-fast-beta on AvalAI supports Function calling, Prompt caching, Reasoning, Tool choice, Web search.

What account tier is required to use grok-3-mini-fast-beta on AvalAI?

Calling grok-3-mini-fast-beta on AvalAI requires tier 1 or higher.

Third-party data and freshness

• Pricing, availability, endpoints, and rate limits: AvalAI structured data (authoritative)