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OpenAI model

GPT-5.4 Nano

API pricing per million tokens

gpt-5-4-nano ReasoningChecked 8h ago
Cost calculator Compare
Input
$0.2
per 1M, list
Output
$1.25
per 1M tokens
Cached input
$0.02
batch $0.1 / $0.625
Context
400K
128K max output

Where to buy it (4)

  • OpenAIflex-50%$0.1 / $0.625cached $0.01
  • Azure AI Foundrydefault region$0.2 / $1.25cached $0.02
  • OpenAI (list)the lab's own API$0.2 / $1.25cached $0.02
  • Azure AI Foundryus+10%$0.22 / $1.38cached $0.022

Through a gateway

Your own numbers

100M input and 20M output tokens a month: $45.00 direct.

Related models

About GPT-5.4 Nano

GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks.

Takes files, image, text in and returns text. First listed Mar 19, 2026. Blended price $0.463 per 1M tokens at 3 input to 1 output.

OpenRouter listing OpenAI pricing page
Across fru.devCompany profile4 acquisitionsPay schedule64 releases, latest 2026-09-229 conferences

Questions

How much does GPT-5.4 Nano cost?

$0.2 per million input tokens and $1.25 per million output tokens, with cached input at $0.02, or $0.1 and $0.625 through the Batch API.

What is the context window of GPT-5.4 Nano?

400K tokens, with up to 128K tokens of output.

Where is GPT-5.4 Nano cheapest?

Of 4 routes tracked, OpenAI is cheapest at $0.1 input and $0.625 output per million tokens.

List prices from providers' pages on the date shown; your contract may differ. Logos via logo.dev; trademarks belong to their owners.

Weekly: LLM API list prices that changed, Thursday mornings.