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⚡ EfficientVery Cheap

GPT-4.1 nano

by OpenAI

Ultra-fast and affordable fine-tunable model

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Input Price

$0.1

per 1M tokens

Output Price

$0.4

per 1M tokens

Context Window

128K

tokens (8.192K max output)

Specifications

Release Date2025-04-14
Category⚡ Efficient
Context Window128,000 tokens
Max Output8,192 tokens
ProviderOpenAI
Input Cost$0.1 / 1M tokens
Output Cost$0.4 / 1M tokens
Price TierVery Cheap

Capabilities

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Related Use Cases

Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$0.02$0.54$7
Medium~200 requests/day500K in / 100K out$0.09$2.70$33
Heavy~1K requests/day2,000K in / 500K out$0.40$12.00$146
Enterprise~5K requests/day10,000K in / 2,000K out$1.80$54.00$657

Cost Calculator

Alternatives to GPT-4.1 nano

Frequently Asked Questions

How much does GPT-4.1 nano API cost per million tokens?
GPT-4.1 nano costs $0.1 per million input tokens and $0.4 per million output tokens as of 2026. These are the standard API rates from OpenAI.
What is the GPT-4.1 nano context window?
GPT-4.1 nano supports a 128K context window (128,000 tokens), which means you can process up to 128K tokens in a single API call.
How much does GPT-4.1 nano cost per month?
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), GPT-4.1 nano costs approximately $2.70/month. Light usage runs about $0.54/month, and heavy usage (~1K requests/day) around $12.00/month.
Is there a cheaper alternative to GPT-4.1 nano?
Yes — GPT-5 nano by OpenAI is a cheaper option at $0.05/M input tokens vs $0.1/M for GPT-4.1 nano. Other budget alternatives include models in the efficient tier.
Is GPT-4.1 nano good for ai chatbot?
GPT-4.1 nano is a efficient model with support for text. For ai chatbot, it offers 128K context and costs $0.1/M input tokens — a budget-friendly choice for this use case.

GPT-4.1 nano Comparisons

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