Visual UI-to-Code Generation
Converts Figma screenshots or hand-drawn wireframes into production-ready React or SwiftUI code via the gpt 5 codex api vision layer.
gpt-5-codex
The gpt 5 codex api by OpenAI is a frontier-class model for the full software development lifecycle. It offers a 256k context window, autonomous repo-level editing, and native vision-to-code generation with unparalleled reasoning.
$ 0.875
$ 1.25
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API
Text 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-codex",
"input": [
{
"role": "user",
"content": [
{
"type": "input_text",
"text": "Write a short poem about artificial intelligence and its impact on humanity."
}
]
}
]
}'gpt 5 codex api Key Features
Explore the technical breakthroughs that make the gpt 5 codex api the preferred choice for modern engineering teams requiring high-reasoning gpt capabilities.
Advanced Debugging Reasoning
Uses internal gpt Chain-of-Thought reasoning to identify complex race conditions and memory leaks that standard linters cannot detect.
Native Test Orchestration
The gpt 5 codex api writes tests and executes them via function calling, self-correcting based on terminal output until all tests pass.
Autonomous Repo-Level Editing
The gpt 5 codex api reasons across a 256k window to perform multi-file refactors while maintaining architectural patterns in large codebases.
Build with gpt 5 codex in Minutes
Follow these simple steps to set up your account, get credits, and start sending API requests to gpt 5 codex via GPT Proto.
Sign up
Create your free GPT Proto account to begin. You can set up an organization for your team at any time.
Top up
Your balance can be used across all models on the platform, including gpt 5 codex, giving you the flexibility to experiment and scale as needed.
Generate your API key
In your dashboard, create an API key — you'll need it to authenticate when making requests to gpt 5 codex.
Make your first API call
Use your API key with our sample code to send a request to gpt 5 codex via GPT Proto and see instant AI-powered results.
gpt 5 codex api FAQ
How does gpt 5 codex handle large repositories?
The gpt 5 codex api utilizes a 256k context window to ingest entire modules. Unlike older models, this gpt version reasons across multiple files to ensure architectural patterns and dependencies remain consistent during large-scale refactors or migrations.
What is the cost of the gpt 5 codex api?
Pricing for gpt 5 codex is $5.00 per 1M input tokens and $15.00 per 1M output tokens. Through GPTProto.com, you get a 50% discount on cached inputs and an additional 5% volume discount for monthly spends over $2,000 across our aggregated gpt providers.
Can gpt 5 codex generate code from images?
Yes. The gpt 5 codex api features native vision integration. This gpt model can process Figma screenshots or system architecture diagrams and output production-ready code in frameworks like React or SwiftUI with over 90% visual accuracy.
Is code sent to the api used for training?
No. When accessing the gpt 5 codex api through our enterprise aggregation platform, your code and data are strictly excluded from training datasets. We prioritize security and privacy for all gpt-driven proprietary development projects.
What programming languages does gpt 5 codex support?
The gpt 5 codex api supports over 80 programming languages. It achieves SOTA performance in Python, TypeScript, Rust, Go, and C++. It is particularly effective for legacy migrations, such as moving COBOL monoliths to modern gpt-optimized architectures.
How do I manage rate limits for the api?
The default tier for gpt 5 codex allows 10,000 RPM. If you hit limits, our platform provides automatic failover to secondary clusters. We also offer tools to truncate large files to fit within the 256k window, ensuring reliable gpt request fulfillment.
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