Model decision page
OpenAI

OpenAI: GPT-5 Nano

Context Window: 400.0K
Max Output Tokens: 4.1K
LLM

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

Last verified
7/7/2026, 11:49:41 PM
Confidence
We prioritize official prices and captured reseller prices. Always confirm once again before purchasing.
Lowest verified entry
OpenRouter
Verified
$0.05 / $0.40

Not enough reseller data

Compare next
OpenRouter
Verified
$0.05 / $0.40

Price is competitive; compare source freshness and platform rules before choosing.

Official baseline
OpenAI
¥5.0e-8 / ¥4.0e-7

Use this baseline before choosing a reseller.

Monthly cost calculator

Official
OpenAI
¥1.3e-6
Lowest
OpenRouter
¥9.36
Compare next
OpenRouter
¥9.36

Estimated from current per-1M token prices; excludes cache, concurrency, package discounts, and platform rules.

Price Overview

Budget
OpenAIOfficial
¥5.0e-8/¥4.0e-7
OpenRouter
$0.05/$0.40
Input Price
Output Price
Unit: per 1M tokens

Platform Price Comparison

per 1M tokens
PlatformInput Price / 1M tokensOutput Price / 1M tokensSavings
OROpenRouter
Best Deal
Verified
Global multi-model routing and pricing platform
$0.05
$0.40
-
OpenAI
Official
Base Price
¥5e-8
¥4e-7
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Prices and information displayed are sourced from publicly available channels and are for reference only. They do not constitute any purchasing advice. Inclusion does not imply recommendation, endorsement, or guarantee of the services or products listed. We assume no legal liability for any consequences arising from the use of this information.