Grok 4.3

xAI chatreasoningtool_usevision Long

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

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

About Grok 4.3

Grok 4 represents xAI's frontier model, pushing the boundaries of AI capability while maintaining the distinctive Grok personality. The model delivers exceptional performance on complex reasoning, coding, and creative tasks, competing with the best models available. Grok 4 features advanced reasoning capabilities, extended context handling, and real-time knowledge access through X integration. It demonstrates strong performance on challenging benchmarks and excels at tasks requiring deep analytical thinking. For users seeking maximum AI capability with Grok's engaging style, Grok 4 offers xAI's most powerful offering. It's particularly valuable for demanding applications in research, development, and creative work.

๐Ÿ’ฐ
Price Ranking
#1033 lowest price among 1240 Chat models

Model Specifications

Context Length
1.0M
Max Output
โ€”
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)

๐Ÿ’ฐ 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

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

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๐Ÿš€ 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)