openai
OpenAI: GPT-5 Nano
openai/gpt-5-nano
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...
- Type
- text
- Provider
- openai
- Model ID
- openai/gpt-5-nano
- Capabilities
- vision, tools, reasoning
- Context window
- 400K tokens
- Input price
- $0.055 / 1M tokens
- Output price
- $0.44 / 1M tokens
Cloud price is billed from prepaid credits when a request fails over to the cloud. Open-weight models run free on GPUs you own — the gateway routes to your nodes first.
What it costs to run
cloud · 1M in + 1M out
$0.50
$0.055 for a million input tokens plus $0.44 for a million output tokens, billed from credits only when a request fails over to the cloud.
your hardware
cloud only
OpenAI: GPT-5 Nano is a hosted model, so it is always served from the cloud. Route easy traffic to an open model on your own hardware and keep this one for the requests that need it.
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Call OpenAI: GPT-5 Nano through one OpenAI-compatible endpoint.
Mix it with open models on your own hardware — the gateway routes each request to the cheapest place that can serve it.
no credit card · 2 nodes free · openai-compatible
Frequently asked questions
- What is the context window of OpenAI: GPT-5 Nano?
- OpenAI: GPT-5 Nano accepts up to 400,000 tokens (400K) of context per request.
- How much does OpenAI: GPT-5 Nano cost per million tokens?
- Through Wide Area Intelligence, OpenAI: GPT-5 Nano costs $0.055 per 1M input tokens and $0.44 per 1M output tokens when served from the cloud, billed from prepaid credits. A workload of 1M input plus 1M output tokens costs $0.50.