gpt-4.1-nano API pricing

Checked 12 Sept 2026 LLMs
$ per 1M input $0.100
$ per 1M output $0.400

Blended at 3:1 input to output: $0.175 per million tokens.

OpenAI charges $0.100 per million input tokens and $0.400 per million output tokens. 3 of the models nearest it in price are cheaper on a blended basis.

$0.100
$/1M input
$0.400
$/1M output
$0.025
$/1M cached in
1,047,576
Context window
$13.20
1k req/day, monthly

Against the models nearest in price

Blended at a 3:1 input to output ratio.

Calculator →
gpt-4.1-nano against comparable models — checked 12 Sept 2026
Source
gpt-4.1-nano This model OpenAI $0.100 $0.400 1,047,576 $0.175

Last checked . Methodology

Questions

How much does gpt-4.1-nano cost per million tokens?

$0.100 per million input tokens and $0.400 per million output tokens, with cached input at $0.025. At a 3:1 input to output mix that blends to $0.175. Checked 12 Sept 2026.

What would gpt-4.1-nano cost for a real workload?

A thousand requests a day at 2,000 input and 600 output tokens each comes to $13.20 a month.

What is the context window for gpt-4.1-nano?

1,047,576 tokens of input, with up to 32,768 tokens of output.

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