256k Context Window
The ai gpt 5.2 pro can process up to 256,000 tokens, perfect for long-form research and massive codebase analysis.

image
text
Image To Text
curl --request POST "https://gptproto.com/v1/responses" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "gpt-5.2-pro-2025-12-11",
"input": [
{
"role": "user",
"content": [
{
"type": "input_text",
"text": "What is in this image?"
},
{
"type": "input_image",
"image_url": "https://tos.gptproto.com/resource/cat.png"
}
]
}
]
}'The ai gpt 5.2 pro introduces breakthroughs in reasoning, context management, and native multimodality for technical workflows.
The ai gpt 5.2 pro can process up to 256,000 tokens, perfect for long-form research and massive codebase analysis.

Processes 1080p video temporally to identify motion-based cues and dependencies in files up to 5 minutes long.

Achieves a 92% success rate on AgentBench for multi-step environment navigation and complex tool selection.

Reduces logical hallucinations by 40% using an internal Chain of Thought verification system for higher ai accuracy.

Follow these simple steps to set up your account, get credits, and start sending API requests to gpt 5.2 pro 2025.12.11 via GPT Proto.

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