Grok 4.3 API Pricing & Quick Start

Name: Grok 4.3 API
Brand: xAI

Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

Pricing

Input Price

$1.2500

/ 1M tokens

NT$ 40

Output Price

$2.5000

/ 1M tokens

NT$ 81

Context Window

tokens

💱 USD/NTD = 32.38 · before tax · updated 07/30/2026

Provider	xAI
Released	April 2026
Model ID	`x-ai/grok-4.3`

Technical specifications

Context window

1M tokens

Reasoning

Yes

Input

TextImageFile

Output

Text

Quick Start

Use Grok 4.3 via BazaarLink API — just change the base_url:

Python

from openai import OpenAI

client = OpenAI(
    base_url="https://bazaarlink.ai/api/v1",
    api_key="sk-bl-YOUR_API_KEY",
)

response = client.chat.completions.create(
    model="x-ai/grok-4.3",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)

TypeScript

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://bazaarlink.ai/api/v1",
  apiKey: "sk-bl-YOUR_API_KEY",
});

const response = await client.chat.completions.create({
  model: "x-ai/grok-4.3",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(response.choices[0].message.content);

Why use Grok 4.3 via BazaarLink?

✓USD billing (TWD-quoted) + unified invoices — no foreign credit card needed for Taiwan teams
✓OpenAI-compatible API — zero code changes required
✓Automatic failover — multi-provider redundancy for the same model
✓Chinese-language support — local team, instant help

Try Now ← All Models

Frequently Asked Questions

What is Grok 4.3?

Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

How much does the Grok 4.3 API cost?

Grok 4.3 costs $1.2500 per 1M input tokens and $2.5000 per 1M output tokens when accessed through BazaarLink.

How do I use Grok 4.3 with the OpenAI SDK?

Set base_url to "https://bazaarlink.ai/api/v1" and use model ID "x-ai/grok-4.3". All OpenAI SDK methods (chat.completions, embeddings, streaming) work without code changes.

What is the context window for Grok 4.3?

Grok 4.3 supports a context window of 1,000,000 tokens.

Is Grok 4.3 available for free?

Grok 4.3 is a paid model. BazaarLink offers free trial credits on registration so you can test it without a credit card.

Relay integrity checks

Tested endpoints: 10 runs
Independent hosts: 7
Model-family fingerprint match: 0%
Anomalies detected: 10 runs
Data range: past 90 days

BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.

View the full integrity report →