GPT 5.4 Nano

"vendor": "openai""model_name": "gpt-5.4-nano"

OpenAI GPT-5.4 Nano - the most affordable model in the GPT-5.4 family for high-volume, low-cost workloads

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README for GPT 5.4 Nano

Overview

GPT-5.4 Nano is the most affordable model in the GPT-5.4 family, designed for high-volume, low-cost workloads where minimal latency and maximum throughput matter.

Key Features

OpenAI-compatible API - Use /vendors/openai/v1/chat/completions or /vendors/openai/v1/responses
Ultra-low cost - The cheapest model in the GPT-5.4 lineup
Cached input support - Further cost savings on repeated prompts
Streaming support - Real-time token streaming

Supported Endpoints

Endpoint	Path
Chat Completions	`/vendors/openai/v1/chat/completions`
Responses	`/vendors/openai/v1/responses`

Usage

Set model to gpt-5.4-nano in your request body.

Pricing

Per Million Tokens

Input: $0.20
Cached Input: $0.02
Output: $1.25

GPT 5.4 Nano

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gpt-5.4-nano

README for GPT 5.4 Nano

README for GPT 5.4 Nano

Overview

Key Features

Supported Endpoints

Usage

Pricing