GPT-4.1 Nano API
The cheapest OpenAI model. Excellent for classification, extraction, and simple tasks at scale.
💰 Save up to 70% vs official OpenAI pricingGPT-4.1 Nano — cheaper than the official OpenAI API
Access GPT-4.1 Nano through AI API Hub and pay less per token. Same OpenAI-compatible endpoint, lower cost.
Technical Specifications
| Provider | OpenAI |
| Model Family | GPT-4.1 Nano |
| Release Date | 2026-01 |
| Context Window | 1M |
| Max Output Tokens | 8,192 |
| Input Price | $0.10 / 1M tokens |
| Output Price | $0.40 / 1M tokens |
| Vision Support | No |
| Function Calling | Yes ✓ |
| JSON Mode | Yes ✓ |
| Streaming | Yes ✓ |
| Fine Tuning | Available |
| Status | Active ✓ |
Overview
GPT-4.1 Nano is OpenAI's current gpt4 model, released in 2026-01. The cheapest OpenAI model. Excellent for classification, extraction, and simple tasks at scale.
For developers, the headline numbers are a 1M context window and up to 8,192 output tokens per response — enough headroom for ultra-low cost and 1m context without chunking your input. Priced at $0.10/1M input and $0.40/1M output, it sits in the budget tier — ideal for high-volume pipelines where token cost dominates.
On the capability side, GPT-4.1 Nano exposes 3 features: Function Calling, JSON Mode, Streaming. Fine-tuning is on the table if you need to specialize behavior on your own data. It's text-only, so route image or audio workloads elsewhere.
The practical appeal of routing GPT-4.1 Nano through AI API Hub is simplicity: one OpenAI-compatible endpoint, USDT & USDC payments, no credit card, and you're calling the API in under 30 seconds — just swap your base URL.
What Makes GPT-4.1 Nano Different
How GPT-4.1 Nano is used
GPT-4.1 Nano is used for general-purpose text tasks — chat, summarization, drafting, classification, and extraction. Function calling extends it to agent-style workflows where it invokes external APIs. For specialized workloads (coding, reasoning, vision), a purpose-tuned sibling may perform better.
Pricing position within OpenAI
GPT-4.1 Nano is the cheapest active model in OpenAI's lineup at $0.10/1M input — no sibling undercuts it. The most expensive sibling costs $20.00/1M (19900% more). At scale, routing high-volume calls here vs the flagship saves significantly.
GPT-4.1 Nano's role in the lineup
Within OpenAI's lineup, GPT-4.1 Nano is the entry-level option — cheapest per token, designed for high-volume workloads. Other gpt4 family variants offer more capability at higher cost. If you hit quality limits, step up to a mid-tier or flagship sibling.
Real-world use cases
Real-world deployments: customer support chatbots, content drafting and summarization, classification pipelines, and extraction workflows. GPT-4.1 Nano handles the standard text-in/text-out case reliably — route specialized tasks (vision, coding, reasoning) to purpose-tuned siblings.
vs sibling models
What makes GPT-4.1 Nano different from sibling models: compared to GPT-5.5 ($4.90/1M more expensive, 256K vs 1M context (smaller)); GPT-5.4 ($2.40/1M more expensive, 256K vs 1M context (smaller)); GPT-4.1 ($1.90/1M more expensive, same 1M context). Choose GPT-4.1 Nano when cost per token is the priority.
API Examples
Python
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.apiyihe.org/v1"
)
response = client.chat.completions.create(
model="gpt-4.1-nano",
messages=[
{"role": "user", "content": "Hello"}
]
)
print(response.choices[0].message.content)JavaScript / Node.js
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.API_KEY,
baseURL: "https://api.apiyihe.org/v1"
});
const response = await client.chat.completions.create({
model: "gpt-4.1-nano",
messages: [
{ role: "user", content: "Hello" }
]
});
console.log(response.choices[0].message.content);cURL
curl https://api.apiyihe.org/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "gpt-4.1-nano",
"messages": [
{"role": "user", "content": "Hello"}
]
}'Supported Features
| Vision / Image Input | ❌ Not Available |
| Audio / Voice Input | ❌ Not Available |
| Function Calling | ✅ Supported |
| JSON Mode | ✅ Supported |
| Streaming | ✅ Supported |
| Fine-Tuning | ✅ Available |
| Multimodal | ❌ Not Available |
Benchmark Scores
| Benchmark | Score |
|---|---|
| MMLU | Not Publicly Available |
| GPQA | Not Publicly Available |
| SWE-Bench | Not Publicly Available |
| HumanEval | Not Publicly Available |
| GSM8K | Not Publicly Available |
| MATH | Not Publicly Available |
| MMMU | Not Publicly Available |
Pricing History
GPT-4.1 Nano was released in 2026-01 by OpenAI and is currently publicly available via AI API Hub.
Current Pricing: $0.10 per 1M input tokens · $0.40 per 1M output tokens. Pay-as-you-go with no minimum commitment.
Pricing Model: Token-based billing (pay per use). No subscription fees. No hidden costs. Fine-tuning incurs additional costs at training and inference time.
💡 OpenAI occasionally updates pricing. AI API Hub reflects current pricing in real-time. All prices in USD. Pay with USDT or USDC — no currency conversion fees.
Compare Alternatives
Frequently Asked Questions
What is GPT-4.1 Nano?
GPT-4.1 Nano is OpenAI's current gpt4 model. The cheapest OpenAI model. Excellent for classification, extraction, and simple tasks at scale. It offers a 1M context window and supports Function Calling, JSON Mode, Streaming. You can access it through AI API Hub using USDT or USDC — no credit card required.
How much does GPT-4.1 Nano cost?
GPT-4.1 Nano is priced at $0.10 per 1M input tokens and $0.40 per 1M output tokens, billed pay-as-you-go with no minimum. Through AI API Hub you can start with as little as $5 and scale from there.
GPT-4.1 Nano vs Claude Opus 4.8?
They're built for different jobs. GPT-4.1 Nano costs $0.10/1M input with a 1M window; Claude Opus 4.8 runs $5.00/1M input with 1M. GPT-4.1 Nano is the more cost-effective pick and still brings ultra-low cost. See the full side-by-side at /compare/gpt-4.1-nano-vs-claude-opus-4.8/.
GPT-4.1 Nano context window?
GPT-4.1 Nano has a 1M context window, capable of processing up to 1,048,576 tokens in a single request. Maximum output tokens: 8,192.
Does GPT-4.1 Nano support function calling?
Yes, GPT-4.1 Nano supports function/tool calling, allowing you to define functions that the model can invoke. This enables AI agents, API integrations, and structured data extraction.
Is GPT-4.1 Nano multimodal?
No, GPT-4.1 Nano is a text-only model. For multimodal use cases, consider models with vision/audio capabilities.
GPT-4.1 Nano API rate limits?
GPT-4.1 Nano rate limits: 10K RPM. Higher tier plans offer increased throughput. For high-volume production use, consider OpenAI's faster variant models.
How to access GPT-4.1 Nano API?
Access GPT-4.1 Nano through AI API Hub: (1) Register at api.apiyihe.org/register?aff=8JZC, (2) Deposit USDT/USDC, (3) Get your API key instantly, (4) Use the OpenAI-compatible endpoint https://api.apiyihe.org/v1 with model name "gpt-4.1-nano". Start building in under 30 seconds.