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GPT-5.4 Nano

Released March 2026 as the smallest model in the GPT-5.4 family and successor to GPT-5 Nano, intended for classification, data extraction, ranking and simple subagent tasks at high volume.

Cheapest of 2 providers, via OpenAI
Input
$0.20 / 1M tokens
Output
$1.25 / 1M tokens

About $4.50 for 10M input and 2M output tokens. Estimate yours

OpenAI Azure 2 providers

Key Specifications

Context window
400K tokens
Max output
128K tokens
Knowledge cutoff
Inputs
Text, Image Outputs: Text

GPT-5.4 Nano pricing by provider

Provider Input / 1M tokens Output / 1M tokens Cost at 10M in + 2M out
OpenAI logo OpenAI Creator Cheapest $0.20 $1.25 $4.50 View
Microsoft Azure logo Azure $0.20 $1.25 $4.50 View

Heads up: We do our best to keep these specs & prices accurate. However, cloud costs may fluctuate based on region, usage, and other factors not listed here. These are estimates based on common setups and are for informational purposes only. Always verify current rates & exact specs with the provider before provisioning. LLM rates are base-tier, on-demand prices per 1M tokens; cached-input, batch and long-context tiers are not included.

Compare every model at this volume in the LLM cost calculator.

Capabilities

Function calling

Function calling

Connect to external tools, APIs, and systems.

Structured output

Structured output

Return responses in structured formats like JSON.

Web search

Web search

Search the web for up-to-date information.

Code execution

Code execution

Write and execute code in a sandboxed environment.

File upload

File upload

Process uploaded documents, spreadsheets, and other files.

MCP

MCP

Connect to services via Model Context Protocol.

Image generation

Image generation

Generate and edit images from text prompts.

More from OpenAI

Model Context Input / 1M Output / 1M
OpenAI logo GPT-5.6 Luna 1M $0.20 $1.20
OpenAI logo GPT-5 Mini 400K $0.25 $2.00
OpenAI logo GPT-4o Mini 128K $0.15 $0.60
OpenAI logo GPT-4.1 Nano 1M $0.10 $0.40
OpenAI logo GPT-4.1 Mini 1M $0.40 $1.60
OpenAI logo GPT-3.5 Turbo 16K $0.50 $1.50
OpenAI logo GPT-5.4 Mini 400K $0.75 $4.50
OpenAI logo GPT-5 Nano 400K $0.05 $0.40

Models near this price

The models nearest this one by input rate, five each way, at each one's cheapest listed provider.

Frequently Asked Questions

How much does GPT-5.4 Nano cost?

GPT-5.4 Nano costs $0.20 per 1M input tokens and $1.25 per 1M output tokens via OpenAI; all 2 providers listing it charge the same rate.

What does GPT-5.4 Nano cost for 10M input and 2M output tokens?

At OpenAI's rates, 10M input tokens and 2M output tokens cost about $4.50: $2.00 for input and $2.50 for output. Input is prompts and context, output is what the model writes back; a workload that generates more than it reads shifts the cost toward the output rate of $1.25 per 1M tokens.

Which providers offer GPT-5.4 Nano?

2 providers list GPT-5.4 Nano: OpenAI ($0.20 in / $1.25 out) and Azure ($0.20 in / $1.25 out). Rates are per 1M tokens in USD, cheapest input rate first.

What is GPT-5.4 Nano's context window?

GPT-5.4 Nano accepts up to 400K tokens of input per request and returns up to 128K tokens per response. The context window is the prompt plus any documents, conversation history and tool results sent with it; every token in it is billed at the input rate.

What is GPT-5.4 Nano's knowledge cutoff?

GPT-5.4 Nano's knowledge cutoff is August 2025: its training data runs up to that month and it has no built-in knowledge of later events. It supports web search, which can supply newer information at query time.

What inputs and outputs does GPT-5.4 Nano support?

GPT-5.4 Nano accepts text and images as input and produces text. Its listed capabilities are function calling, structured output, web search, code execution, file upload, MCP and image generation.

How does GPT-5.4 Nano compare with GPT-5.6 Luna?

GPT-5.4 Nano and GPT-5.6 Luna both cost $0.20 per 1M input tokens ($1.25 vs $1.20 per 1M output tokens). The context window is 400K tokens against 1M.

What are cheaper alternatives to GPT-5.4 Nano?

Models from other creators with a lower input rate and at least GPT-5.4 Nano's 400K-token context window: Llama 4 Scout at $0.17 per 1M input tokens (10M context), GLM-5.3-Flash at $0.15 per 1M input tokens (1M context) and DeepSeek V4 Flash at $0.14 per 1M input tokens (1M context). Rates are the cheapest listed provider for each; whether the quality holds for a given task is a separate question.

Cheaper alternatives to GPT-5.4 Nano