Autonomous Agentic Loops
Maintains goal alignment over 50+ turns, reducing reasoning drift in complex ai workflows.
gpt-5.1 / image-to-text
OpenAI’s ai gpt 5.1 is a flagship multimodal model designed for agentic reasoning. With 256k context and native video processing, this gpt 5.1 handles complex logical tasks requiring deep internal deliberation and technical precision.
$ 0.875
$ 1.25
image
$ 7
$ 10
text
API
Image To Text (Response)
curl --request POST "https://gptproto.com/v1/responses" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "gpt-5.1",
"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"
}
]
}
]
}'Image To Text (Chat)
curl --request POST "https://gptproto.com/v1/chat/completions" \
--header "Authorization: Bearer $GPTPROTO_API_KEY" \
--header "Content-Type: application/json" \
--data '{
"model": "gpt-5.1",
"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
}'ai gpt 5.1 Core Features
Technical highlights of the ai gpt 5.1 architecture.
System 2 Thinking Effort
Controllable compute allocation for deep internal deliberation on mathematical and logical proofs.
Zero-Shot Code Architecture
Generates multi-file project structures and identifies circular dependencies in large codebases.
Native Video Reasoning ai
Processes temporal data natively for precise event sequencing and action-consequence analysis.
How to Get a gpt 5.1 API Key
Getting a gpt 5.1 API key takes four steps and a few minutes. Create a free GPTProto account, add credits, generate your key, and make your first call — at $0.875 / $7 it's a cheaper gpt 5.1 API key than going direct, and one key works across every model on the platform. Full gpt 5.1 Documentation is in the docs.
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 5.1, 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 5.1.
Make your first API call
Use your API key with our sample code to send a request to gpt 5.1 via GPT Proto and see instant AI-powered results.
ai gpt 5.1 FAQ
How does ai gpt 5.1 handle complex reasoning tasks?
The ai gpt 5.1 model features a controllable reasoning parameter. By setting this ai effort to high, the gpt 5.1 architecture spends more compute on internal deliberation. This is essential for proofs or architectural design where logic is paramount. Compared to previous ai versions, gpt 5.1 maintains alignment over long trajectories, making it the ideal ai for autonomous agents that need to solve multi-step problems without drifting.
Is ai gpt 5.1 backward compatible with GPT-4o?
Yes, the ai gpt 5.1 API is fully backward compatible. Developers can simply update the model parameter to gpt 5.1 within their existing ai integration code. While the core structure remains the same, this ai introduces new parameters like reasoning_effort to take advantage of its advanced logic. Moving your ai workload to 5.1 via our platform ensures a smooth transition with added benefits like consolidated billing and failover.
What are the video reasoning capabilities of this ai?
Unlike older ai models that sample frames, ai gpt 5.1 processes video natively. This allows the ai to understand event sequencing and cause-and-effect within a video file. It is a massive leap for ai applications in robotics, security, and education. You can provide a video to the ai and ask for specific (x, y) coordinates of objects or a detailed analysis of actions, making gpt 5.1 a truly multimodal-native ai solution.
How does context caching work for ai gpt 5.1?
Our platform offers a 50% discount on cached input tokens for ai gpt 5.1. When you send a large prompt—such as a 200k token legal contract—to the ai, our system stores the processed prefix. Subsequent calls to the ai using that same context are significantly cheaper and faster. This makes gpt 5.1 highly cost-effective for enterprise ai applications that require repeated analysis of the same massive datasets or knowledge bases.
Can ai gpt 5.1 generate structured JSON data?
Absolutely. The ai gpt 5.1 supports native JSON mode with strict schema adherence. This ensures the ai output matches your specified structure every time, which is critical for developers building ai-powered software that relies on predictable data formats. By using grammar-constrained sampling, this ai version eliminates the formatting errors that often plague lower-tier ai models, ensuring your gpt 5.1 integrations are robust and reliable.
Is my data used to train the ai gpt 5.1 model?
No. When you access ai gpt 5.1 through GPTProto.com, your data is protected. Enterprise ai traffic is exempt from model training by OpenAI. We ensure that your sensitive ai inputs and outputs remain private and secure. For organizations with extreme privacy needs, we also offer VPC deployment options. This makes gpt 5.1 a trustworthy ai choice for legal, medical, and financial industries handling sensitive information.
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