gpt-4.1 / image-to-text
INPUT PRICE
Input / 1M tokens
image
OUTPUT PRICE
Input / 1M tokens
text
API
Chat
curl -X POST "https://gptproto.com/v1/chat/completions" \
-H "Authorization: sk-*****" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-4.1",
"messages": [
{
"role": "user",
"content": [
{
"type": "text",
"text": "What is in this image?"
},
{
"type": "image_url",
"image_url": {
"url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
}
}
]
}
]
}'Response
curl --location 'https://gptproto.com/v1/responses' \
--header 'Authorization: sk-*****' \
--header 'Content-Type: application/json' \
--data '{
"model": "gpt-4.1",
"input": [
{
"role": "user",
"content": [
{
"type": "input_text",
"text": "What is in this image?"
},
{
"type": "input_image",
"image_url": "data:image/jpeg;base64,${base64Image}"
}
]
}
],
"stream": false
}'
Real World Application Scenarios
Discover how developers use gpt-4.1/image-to-text to convert images into actionable text for diverse professional needs.
Automated Invoice Digitization
A mid-sized finance firm uses gpt-4.1/image-to-text to streamline its accounts payable workflow. Uploaded invoices and receipts are automatically converted into structured tables, with vendor details, dates, and totals extracted accurately. This replaces slow manual entry, reduces human error, and enables real-time expense tracking. Integration required minimal change to their ERP, handling various international invoice formats. Automation speeds up accounts reconciliation by over 40 percent, freeing accountants for review rather than basic data entry.
Accessibility Alt Text Generation
A digital publishing company integrates gpt-4.1/image-to-text into their content management system to generate meaningful alt text for images. Product photos, infographics, and editorial illustrations are instantly described in clear language compliant with WCAG standards. Editors can review and customize captions, reducing the time spent writing alt text for thousands of assets. The result is improved site accessibility and search engine optimization, boosting the publisher’s compliance and audience reach.
Historical Archive Digitization
A university library digitizes rare manuscripts and handwritten letters with gpt-4.1/image-to-text. The model handles faded text, old fonts, and bilingual content, producing accurate, searchable digital copies. Historians and researchers can now search full archives, extract key dates or names, and organize materials instantly. This scalable approach preserves valuable heritage content and connects it to a global academic audience more efficiently than manual transcription.
Getting Started with Gptproto — Build with gpt-4.1 in Minutes
Follow these simple steps to set up your account, get credits, and start sending API requests to gpt-4.1 via Gptproto.
Sign up
Create your free Gptproto 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-4.1, 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-4.1.
Make your first API call
Use your API key with our sample code to send a request to gpt-4.1 via Gptproto and see instant AI‑powered results.
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