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Gpt 4.1 Nano

GPT-4.1 Nano is OpenAI's fastest and cheapest model, designed for classification, autocompletion, and lightweight agentic tasks. Despite its low cost, it supports the full 1M context window.

Gpt 4.1 Nano Pricing & Specifications

Input Price$0.10 per 1M tokens
Output Price$0.40 per 1M tokens
Context Window1,047,576 tokens (1.0M)
Max Output32,768 tokens
ProviderOpenAI
Release Date2025-04

What is Gpt 4.1 Nano?

Gpt 4.1 Nano is a large language model by OpenAI with a 1.0M context window and up to 32,768 output tokens. It costs $0.10 per 1M input tokens and $0.40 per 1M output tokens. GPT-4.1 Nano is OpenAI's fastest and cheapest model, designed for classification, autocompletion, and lightweight agentic tasks. Despite its low cost, it supports the full 1M context window.

Capabilities

text function calling json mode

Gpt 4.1 Nano Cost Examples

Short prompt (500 tokens)

$0.000050

Medium prompt (2K tokens)

$0.00020

Long output (4K tokens)

$0.00160

Count tokens for Gpt 4.1 Nano

Paste your prompt to see exact token counts and API cost estimates.

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Frequently Asked Questions

How much does Gpt 4.1 Nano cost per token? +
Gpt 4.1 Nano costs $0.10 per 1M input tokens and $0.40 per 1M output tokens. For a typical 1,000-token request with a 500-token response, that works out to roughly $0.000300.
What is the context window for Gpt 4.1 Nano? +
Gpt 4.1 Nano supports a context window of 1,047,576 tokens (1.0M). This determines the maximum combined length of your prompt and conversation history in a single API call.
What is the maximum output length for Gpt 4.1 Nano? +
Gpt 4.1 Nano can generate up to 32,768 tokens in a single response. If you need longer outputs, you can make multiple API calls and concatenate the results.
Is Gpt 4.1 Nano good for coding tasks? +
Yes, Gpt 4.1 Nano supports capabilities well-suited for coding tasks including code generation, debugging, and refactoring.
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