LightweightOpenAI

GPT-5.4 Nano

GPT-5.4 Nano is OpenAI's lightweight text model optimized for high-volume, cost-effective tasks with a 128K token context window.

Context 128K
Tier Lightweight
Input from
$0.200 / 1M tokens
across 2 providers
Compare Prices

API Pricing

ProviderInput / 1MOutput / 1MSpeedTTFTUpdated
OpenAI logo
OpenAI
$0.200$1.25180 t/s2.6s4/14/2026
OpenRouter logo
OpenRouter
$0.200$1.25180 t/s2.6s4/14/2026

Prices updated daily. Last check: 4/14/2026

Model Details

General

Creator
OpenAI
Family
GPT
Tier
Lightweight
Context Window
128K
Modalities
Text

Capabilities

Tool Calling
No
Open Source
No

Strengths & Limitations

  • 128K token context window for processing lengthy documents
  • Optimized for high-volume deployment with faster inference
  • Part of the GPT-5.4 family with OpenAI's latest training techniques
  • Lower computational overhead compared to full-scale models
  • Streaming response support for real-time applications
  • Maintained by OpenAI with regular updates and reliability
  • Suitable for batch processing large text datasets
  • No tool calling or function execution capabilities
  • Text-only modality - no image or multimodal input support
  • Proprietary model with no access to weights or local deployment
  • Limited reasoning capabilities compared to flagship GPT-5.4 variants
  • May underperform on complex analytical or creative tasks

Key Features

•128K token context window
•Text input and output processing
•Streaming response generation
•Batch API support for high-volume processing
•JSON mode for structured output
•Temperature and top-p sampling controls
•Stop sequences and custom completion settings
•Rate limiting and usage monitoring

About GPT-5.4 Nano

GPT-5.4 Nano is OpenAI's lightweight model in the GPT-5.4 family, positioned as the most cost-effective option for high-volume text processing tasks. As part of the GPT lineup, it sits below the standard GPT-5.4 and GPT-5.4 Turbo models, prioritizing efficiency and speed over maximum capability. The model supports a 128K token context window and handles text-only inputs and outputs. GPT-5.4 Nano is designed for straightforward language tasks where the full capabilities of larger models aren't necessary, offering faster response times and lower computational overhead. Unlike its larger siblings in the GPT-5.4 family, it does not include tool calling functionality, keeping the model streamlined for core text generation. GPT-5.4 Nano serves applications requiring consistent text processing at scale, such as content moderation, simple classification, basic summarization, and high-throughput text generation where cost efficiency is paramount. Organizations often deploy it for preprocessing tasks or scenarios where the additional capabilities of flagship models would be underutilized.

Common Use Cases

GPT-5.4 Nano is designed for high-volume text processing scenarios where cost efficiency and speed matter more than advanced reasoning capabilities. It excels at content moderation, simple classification tasks, basic summarization of documents, and straightforward text generation. Organizations use it for preprocessing large datasets, customer service automation, content filtering, and batch text transformation tasks. The 128K context window makes it suitable for processing lengthy documents while maintaining cost effectiveness. It's particularly valuable for applications requiring consistent performance across millions of requests, such as automated content review, simple chatbots, or text formatting tasks where the full power of flagship models would be unnecessary.

Frequently Asked Questions

How much does GPT-5.4 Nano cost per million tokens?

GPT-5.4 Nano pricing varies by provider and usage type (standard API vs batch processing). Check the pricing table above for current rates across all available providers.

What is GPT-5.4 Nano best used for?

GPT-5.4 Nano is optimized for high-volume text processing tasks like content moderation, simple classification, basic summarization, and straightforward text generation. Its 128K context window and cost-effective design make it ideal for batch processing and applications requiring consistent performance at scale.

How does GPT-5.4 Nano compare to the standard GPT-5.4 model?

GPT-5.4 Nano prioritizes cost efficiency and speed over maximum capability. It lacks tool calling functionality and advanced reasoning capabilities found in standard GPT-5.4, but offers faster inference and lower costs for simpler text tasks. Both share the same 128K context window and text-only modality.