AI Observatory / Model Radar OpenAI / openai/gpt-5.4-nano

OpenAI: GPT-5.4 Nano

GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...

400,000 Context
128,000 Max output
$0.20 / 1M Prompt price
2026-03-17 Created
01 / Snapshot

Pricing, context, modalities, and parameters.

Model Radar detail pages stay neutral and operator-readable: core metadata first, then workflow fit.

Provider OpenAI Input modalities file, image, text
Output modalities text Prompt price $0.20 / 1M
Completion price $1.25 / 1M Request price N/A
Context length 400,000 Max completion tokens 128,000
Supported parameters include_reasoning, max_completion_tokens, max_tokens, reasoning, response_format, seed, structured_outputs, tool_choice, tools
Best for openai/gpt-5.4-nano

OpenAI: GPT-5.4 Nano

GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...

Cross-modal work Long context High-volume usage Coding workflows new vision tool-capable long-context low-cost
03 / Colophon

Routes and exits.

Each model page stays simple: overview, compare, related models, then back to the public hub.