openai/gpt-4.1-nano
Model Card
GPT-4.1 Nano is OpenAI's fastest and cheapest model, designed for low-latency tasks like classification and autocompletion. It features a 1M token context window and scores 80.1% on MMLU despite its small size.
Context Window 1M
tokens
Max Output 33K
tokens
Input Cost $0.1
per million tokens
Output Cost $0.4
per million tokens
Input text, image
modalities
Tool Use Yes
Knowledge Cutoff Apr 2024
Release Date Apr 14, 2025
API Usage Example
Add GPT-4.1 Nano to your app with just a few lines of code.
No backend, no configuration required.
// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "openai/gpt-4.1-nano"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "openai/gpt-4.1-nano"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
# pip install openai
from openai import OpenAI
client = OpenAI(
base_url="https://api.puter.com/puterai/openai/v1/",
api_key="YOUR_PUTER_AUTH_TOKEN",
)
response = client.chat.completions.create(
model="openai/gpt-4.1-nano",
messages=[
{"role": "user", "content": "Explain quantum computing in simple terms"}
],
)
print(response.choices[0].message.content)
curl https://api.puter.com/puterai/openai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_PUTER_AUTH_TOKEN" \
-d '{
"model": "openai/gpt-4.1-nano",
"messages": [
{"role": "user", "content": "Explain quantum computing in simple terms"}
]
}'
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Frequently Asked Questions
You can access GPT-4.1 Nano by OpenAI through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
Yes, it is free if you're using it through Puter.js. With the User-Pays Model, you can add GPT-4.1 Nano to your app at no cost — your users pay for their own AI usage directly, making it completely free for you as a developer.
| Price per 1M tokens | |
|---|---|
| Input | $0.1 |
| Output | $0.4 |
GPT-4.1 Nano was created by OpenAI and released on Apr 14, 2025.
GPT-4.1 Nano supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,095 pages of text.
GPT-4.1 Nano can generate up to 33K tokens in a single response.
GPT-4.1 Nano has a knowledge cutoff date of Apr 2024. This means the model was trained on data available up to that date.
GPT-4.1 Nano accepts the following input types: text, image. It produces: text.
Yes, GPT-4.1 Nano supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Yes — the GPT-4.1 Nano API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Get started with Puter.js
Add GPT-4.1 Nano to your app without worrying about API keys or setup.
Read the Docs View Tutorials