Grok 4.3

xAI chatreasoningtool_usevision Long

API ID: x-ai/grok-4.3-20260430

Compare Calculate
Input Price
$1.25
/1M tokens
Output Price
$2.50
/1M tokens
Cached Input
$0.20
Save 84%

About Grok 4.3

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

💰
Price Ranking
#1033 lowest price among 1240 Chat models

Model Specifications

Context Length
1.0M
Max Output
—
Release Date
2026-04-30
Capabilities
chat reasoning tool_use vision
Input Modalities
textimagefile
Output Modalities
text

Best For

  • Complex reasoning, math problems, multi-step logic
  • Image analysis, document understanding, visual Q&A
  • Conversations, content writing, general assistance

Consider Alternatives For

  • Simple Q&A (cheaper models available)

💰 Real-World Cost Examples

Estimated monthly costs for common use cases

Personal AI Assistant
$1.31
/month
50 conversations/day, ~500 tokens each
Customer Service Bot
$41.25
/month
1000 tickets/day, ~800 tokens each
Data Analysis Pipeline
$58.13
/month
500 analyses/day, ~2k tokens each
Calculate Your Custom Usage

xAI Model Lineup

Compare all models from xAI to find the best fit

Model Input Output Context Capabilities
Grok 4.3 Current Free Free 1.0M chat reasoning tool_use vision
Grok 2 Vision 1212 Free Free 33k chat vision
Grok 2 Vision 1212 Free Free 33k chat vision
Grok Vision Beta Free Free 8k chat vision
Grok Vision Beta Free Free 8k chat vision
Grok 2 Free Free 33k chat
View All xAI Models →

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💡 Cheaper Alternatives

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Cross Brand

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$0.0050 Free 512
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🚀 Quick Start

Get started with Grok 4.3 API

OpenAI-compatible SDK 
from openai import OpenAI

client = OpenAI(
    base_url="https://api.provider.com/v1",
    api_key="YOUR_API_KEY"
)

response = client.chat.completions.create(
    model="x-ai/grok-4.3-20260430",
    messages=[
        {"role": "user", "content": "Hello!"}
    ]
)
print(response.choices[0].message.content)

Resources

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