GPT-4.1 Nano
OpenAIReleased Apr 14, 2025
For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...
- Context window
- 1.0M tokens
- Max output
- 33K tokens
- Input
- image, text, file
- Output
- text
- Tokenizer
- GPT
- Knowledge cutoff
- Jun 30, 2024
- Released
- Apr 14, 2025
Pricing
Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.
| Per 1M tokens | Provider | + 3% fee | You pay |
|---|---|---|---|
| Input | $0.100 | $0.0030 | $0.103 |
| Output | $0.400 | $0.012 | $0.412 |
| Cache read | $0.025 | $0.0008 | $0.026 |
Benchmarks
Artificial Analysis
- Intelligence index
- 9.6
- Coding index
- 11.1
- Agentic index
- 1.2
Design Arena
| Category | Elo | Win rate | Rank |
|---|---|---|---|
| 3Dmodels | 1001 | 46% | #89 |
| Codemodels | 1012 | 47.3% | #97 |
| Data vizmodels | 935 | 41.1% | #98 |
| Game devmodels | 1036 | 49.6% | #90 |
| UI componentsmodels | 972 | 43.9% | #92 |
| Websitesmodels | 1016 | 48.1% | #98 |
Head-to-head preference voting. How we filter and rank
Supported parameters
- max_completion_tokens
- max_tokens
- response_format
- seed
- structured_outputs
- temperature
- tool_choice
- tools
- top_p
Call it
OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model openai/gpt-4.1-nano.
curl https://api.openkey.ai/v1/chat/completions \
-H "Authorization: Bearer $OPENKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openai/gpt-4.1-nano",
"messages": [{"role": "user", "content": "Hello"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.openkey.ai/v1",
api_key=os.environ["OPENKEY_API_KEY"],
)
completion = client.chat.completions.create(
model="openai/gpt-4.1-nano",
messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.openkey.ai/v1",
apiKey: process.env.OPENKEY_API_KEY,
});
const completion = await client.chat.completions.create({
model: "openai/gpt-4.1-nano",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);Questions
- How much does GPT-4.1 Nano cost via API?
- Through OpenKey, GPT-4.1 Nano costs $0.103 per 1M input tokens and $0.412 per 1M output tokens. That is the provider price ($0.100 / $0.400) plus a flat 3% fee — nothing else.
- What is GPT-4.1 Nano's context window?
- GPT-4.1 Nano accepts up to 1.0M tokens of context and returns up to 33K tokens per request.
- Is GPT-4.1 Nano OpenAI-compatible?
- Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "openai/gpt-4.1-nano" using any OpenAI SDK — only the base URL and API key change.
- What inputs does GPT-4.1 Nano support?
- GPT-4.1 Nano accepts image, text, file input and produces text output. Its knowledge cutoff is Jun 30, 2024.
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