Advanced Reasoning Engine
The Grok 4 model uses refined logic to solve complex math and coding problems with higher accuracy than previous versions.

image
text
Image To Text
curl --request POST "https://gptproto.com/v1/chat/completions" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "grok-4-0709",
"messages": [
{
"role": "user",
"content": [
{
"type": "text",
"text": "What is in this image?"
},
{
"type": "image_url",
"image_url": {
"url": "https://tos.gptproto.com/resource/cat.png"
}
}
]
}
],
"max_tokens": 300
}'Grok 4 delivers a specialized suite of tools designed for high-performance AI applications and live data processing.
The Grok 4 model uses refined logic to solve complex math and coding problems with higher accuracy than previous versions.

Integrate the Grok 4 API into your stack with a single line of code through our streamlined GPTProto.com gateway.

Grok 4 is optimized for low latency and high token output, making it perfect for real-time chat and high-speed processing.

Grok 4 provides instant access to the X data stream, enabling applications to react to global events as they unfold via the API.

Follow these simple steps to set up your account, get credits, and start sending API requests to grok 4.0709 via GPT Proto.

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Discover Grok-4 and Grok 4.1's capabilities, benchmarks, and how xAI's frontier AI compares to GPT-5, Claude, and Gemini. Access via GPT Proto or X Premium. Updated Dec 2025.

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Explore the Grok 4 API for advanced reasoning, image, and video generation. Optimize your developer workflow and reduce costs. Get started with xAI now.