OpenAI: GPT-5 Nano

GPT

Multimodal

Paid

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 counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.

Parameters

Context Window

400,000

tokens

Input Price

$0.05

per 1M tokens

Output Price

$0.4

per 1M tokens

Capabilities

Model capabilities and supported modalities

Performance

Reasoning

Excellent reasoning capabilities with strong logical analysis

Math

Coding

Knowledge

Modalities

Input Modalities

text,image,file

Output Modalities

text

LLM Price Calculator

Calculate the cost of using this model

Input Tokens (0.00000005/token)$0.000075

Output Tokens (0.00000040/token)$0.001200

Common Scenarios:

Input Cost:$0.000075

Output Cost:$0.001200

Total Cost:$0.001275

Estimated usage: 4,500 tokens

Monthly Cost Estimator

Based on different usage levels

Light Usage

$0.0045

~10 requests

Moderate Usage

$0.0450

~100 requests

Heavy Usage

$0.4500

~1000 requests

Enterprise

$4.5000

~10,000 requests

Note: Estimates based on current token count settings per request.

Last Updated: 1970/01/21