INPUT PRICE
Input / 1M tokens
text
OUTPUT PRICE
Output / 1M tokens
text
Text To Text
curl --location 'https://gptproto.com/v1/responses' \
--header 'Authorization: GPTPROTO_API_KEY' \
--header 'Content-Type: application/json' \
--data '{
"model": "gpt-5.1-codex-max",
"input": [
{
"role": "user",
"content": [
{
"type": "input_text",
"text": "Write a short poem about artificial intelligence and its impact on humanity."
}
]
}
]
}'
GPT Proto provides seamless, enterprise-grade access to gpt-5.2, empowering developers with the world's most advanced reasoning capabilities. Explore our full model catalog to see how the GPT-5 family can transform your application logic today.
gpt-5.2 stands as a pinnacle of artificial intelligence, specifically designed to bridge the gap between simple text generation and complex cognitive reasoning. By utilizing a refined transformer architecture, this model excels at following multi-step instructions and maintaining logical consistency over long sequences. Developers using gpt-5.2 on GPT Proto benefit from its ability to process images and text simultaneously, allowing for the creation of truly intelligent multimodal applications. Whether you are solving advanced mathematical problems or generating architectural software designs, gpt-5.2 provides the depth of thought required for professional excellence. The model's integration with the Responses API ensures that every interaction is stable, predictable, and highly customizable to your specific technical needs.
Integrating gpt-5.2 into your stack is effortless on our platform. We provide comprehensive tools and libraries that allow you to call the gpt-5.2 model with just a few lines of code. By visiting our API documentation, you can learn how to implement features like Structured Outputs and multimodal vision inputs. Our infrastructure is optimized for the gpt-5.2 engine, ensuring that your users experience the lowest possible latency without sacrificing intelligence. You can easily manage multiple API keys and track your model performance through a single, intuitive interface designed for technical teams.
One of the most innovative features of gpt-5.2 is the ability to adjust its reasoning effort. This allows you to optimize your workflow by choosing 'low effort' for simple tasks to save money or 'high effort' for mission-critical logic. On GPT Proto, we give you full access to these parameters, enabling a level of cost and performance optimization that was previously impossible. This granular control makes gpt-5.2 the perfect choice for diverse applications, from high-speed chatbots to deep-thinking research assistants.
gpt-5.2 on GPT Proto represents the most significant leap in accessible AI reasoning, providing developers with the tools to build the next generation of truly autonomous agents.
Stability is the foundation of any successful API integration. When you choose to run gpt-5.2 on GPT Proto, you are leveraging an enterprise-grade infrastructure built for 99.9% uptime. Our platform handles the complexities of model scaling and load balancing, so you can focus on building features rather than managing servers. We provide detailed logs and real-time monitoring tools that make it easy to debug your gpt-5.2 calls and optimize your prompt strategies. Our commitment to developer success means you always have access to the latest model snapshots and technical support.
| Feature | Standard Models | gpt-5.2 on GPT Proto |
|---|---|---|
| Reasoning Depth | Surface level | Multi-step logical deduction |
| Cost-Efficiency | Fixed pricing | Flexible effort optimization |
| Multimodal Vision | Optional/Limited | Native high-resolution support |
| Integration Speed | Manual setup | Instant API key generation |
We believe in a fair and transparent billing model for all our users. On GPT Proto, you do not have to deal with complex credit conversions or hidden fees. Instead, you simply Top-up Balance using your preferred currency. Your gpt-5.2 usage is then billed precisely per token, and you can monitor your remaining amount in real-time. To see exactly how your application is performing, you can visit your usage dashboard at any time. This direct approach to funds management ensures that you have total control over your project's budget as you scale.
For more tips on how to get the most out of gpt-5.2, check out our latest articles on the official blog. We regularly publish guides on prompt engineering, reasoning optimization, and new features within the GPT-5 ecosystem. Start building with gpt-5.2 on GPT Proto today and experience the future of intelligent API integration.

Explore how gpt-5.2 is revolutionizing industries by providing deep reasoning, multimodal understanding, and reliable API performance on the GPT Proto platform.
Developers use gpt-5.2 to build sophisticated autonomous agents that can write, test, and debug entire software modules. By leveraging the model's high reasoning effort on GPT Proto, these agents can understand complex dependency trees and legacy codebases. The model not only generates the code but also explains the logic behind its decisions, making it an invaluable partner for pair programming. This significantly reduces the time required for manual bug hunting and allows engineering teams to focus on high-level architecture rather than repetitive syntax tasks.
Retailers and manufacturers integrate gpt-5.2 via the GPT Proto API to perform real-time visual inspections of products and store environments. The model can process images to detect defects, verify inventory levels, or even analyze customer behavior patterns. Its multimodal nature allows it to combine visual data with textual context, providing a holistic understanding of the scene. This use case is particularly powerful for safety monitoring, where gpt-5.2 can identify potential hazards in a workplace and alert supervisors with detailed, logic-based reports immediately.
Financial analysts employ gpt-5.2 on GPT Proto to synthesize vast amounts of market data into actionable investment reports. The model's ability to perform deep logical deduction makes it superior at identifying subtle trends in earnings calls and economic indicators. It can cross-reference multiple documents and provide a reasoned outlook that considers various geopolitical risks. By using the Structured Outputs feature, firms can ensure that the model's findings are delivered in a format that integrates directly into their existing quantitative models, ensuring data integrity throughout the process.
Follow these simple steps to set up your account, get credits, and start sending API requests to gpt 5.1 codex max via GPT Proto.

Sign up

Top up

Generate your API key

Make your first API call

OpenAI released GPT-5.2 on December 11, 2024, with three versions offering major improvements in coding, spreadsheets, and reasoning. Learn what's new and how to access it affordably through GPT Proto.

Compare GPT 5.2 and Gemini 3 models. Learn their capabilities, pricing, and which AI is best for your needs. Detailed feature comparison inside.

Discover OpenAI's GPT-5.1 with improved reasoning, 8 personality modes, and better instruction following. Learn how this update transforms AI conversations for developers and businesses.

GPT-5 launched August 2025 with unified multimodal architecture, advanced reasoning modes, and breakthrough performance. Complete guide to features, pricing, variants, and enterprise integration.
Developer Reviews for gpt-5.2