OpenAI · LLM API Modelactive

gpt-4.1-nano-2025-04-14

OpenAI pricing for gpt-4.1-nano-2025-04-14.

Updated September 21, 2026

Input / 1M

$0.20

Output / 1M

$0.80

Cached Input

$0.05

Context Window

128K

Standard Input

$0.20 / 1M

Base prompt input rate

Standard Output

$0.80 / 1M

Completion output rate

Prompt Caching -50%

$0.05 / 1M

Cached prompt context

Batch API -50%

$0.10 / 1M

Asynchronous 24h batch

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Finetuning

All rates listed in USD per 1 Million (1M) tokens unless noted

StandardBatch

Pricing Metric / Parameter	Standard RATE (per 1M)	Batch RATE (per 1M)
Training	$1.50	$1.50
Input	$0.20	$0.10
Cached input	$0.05	$0.025
Output	$0.80	$0.40

Source: OpenAI official pricing page, verified 2026-09-21. Prices in USD per 1M tokens.

AI / LLM

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