Cost-Effective Scaling
At just $0.15 per 1M input tokens, this gpt 4o mini allows for high-volume processing at a fraction of the usual cost.
gpt-4o-mini / image-to-text
OpenAI's ai gpt 4o mini is a small, high-performance model built for high-volume tasks. It offers 128k context, 16k output tokens, and native vision, providing top-tier intelligence at 60% less cost than GPT-3.5 Turbo for developers everywhere.
$ 0.105
$ 0.15
image
$ 0.42
$ 0.6
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-4o-mini",
"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-4o-mini",
"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
}'Core ai gpt 4o mini Features
The ai gpt 4o mini packs high-end capabilities into a low-latency, affordable package.
Native Vision Support
This mini model isn't just for text; it understands images too. Use it for OCR and visual analysis in real-time.
Structured JSON Outputs
Use the 4o mini for 100% reliable JSON schema adherence. Perfect for building stable, agentic AI workflows.
High-Performance Reasoning
The ai gpt 4o mini scores 82.0% on MMLU, outperforming Claude 3 Haiku and GPT-3.5 Turbo in reasoning and math.
How to Get a gpt-4o-mini API Key
Getting a gpt-4o-mini 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 $0.105 / $0.42 it's a cheaper gpt-4o-mini API key than going direct, and one key works across every model on the platform. Full gpt-4o-mini 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-4o-mini, 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-4o-mini.
Make your first API call
Use your API key with our sample code to send a request to gpt-4o-mini via GPT Proto and see instant AI-powered results.
ai gpt 4o mini Common Questions
Find expert answers about the ai gpt 4o mini model and its practical applications.
How does this ai gpt 4o mini compare to GPT-3.5 Turbo?
The ai gpt 4o mini is 60% cheaper than GPT-3.5 Turbo and significantly smarter. It scores 82.0% on MMLU compared to 70.0% for 3.5. It also adds vision support and a much larger 128k context window, making it the superior choice for modern ai applications.
Can I use this gpt 4o mini for vision-based tasks?
Yes, the gpt 4o mini natively supports image understanding. It can handle OCR, object detection, and captioning. This makes the mini model ideal for simple vision tasks like extracting data from receipts or describing user photos without needing a separate multimodal model.
What are the structured output capabilities?
This model supports OpenAI’s 'Strict' mode for JSON schemas. This ensures that the gpt 4o mini outputs match your provided schema with 100% reliability, which is critical for developers building complex API chains and automated workflows.
Is my data used to train the ai gpt 4o mini?
No. When you access the ai gpt 4o mini via our API, your data is processed under enterprise-grade privacy terms. OpenAI does not use data submitted through their API to train their underlying models, ensuring your proprietary information remains secure.
What is the context window for this 4o mini model?
The 4o mini model features a 128,000 token context window. Additionally, it supports up to 16,384 output tokens, which is four times higher than the standard GPT-4 models. This allows for processing long documents and generating extensive responses in a single pass.
How do I migrate my existing gpt apps to mini?
Migration is seamless. Simply update your API request's model parameter to 'gpt-4o-mini'. Since it uses the same chat completions schema as previous gpt models, no major code refactoring is necessary to take advantage of the lower costs and higher speed.
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