GPT-4.1 Nano

Ultra-lightweight GPT-4.1 variant for high-volume, cost-sensitive applications.

gpt-4.1-nano
STABLEGet StartedView uptime
1,000,000 context
Released April 14, 2025
Starting at $0.10/M input tokens
Starting at $0.40/M output tokens
Streaming
Vision
Tools
JSON Output
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Select Provider

All Providers for GPT-4.1 Nano

LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.

OpenAI
Context: 1M
Input
$0.1
/M tokens
Cache Read
$0.025
/M tokens
Output
$0.4
/M tokens
Get Started
Azure
Context: 1M
Input
$0.1
/M tokens
Cache Read
$0.025
/M tokens
Output
$0.4
/M tokens
Get Started

Frequently asked questions

What is GPT-4.1 Nano?

Ultra-lightweight GPT-4.1 variant for high-volume, cost-sensitive applications. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.

How much does GPT-4.1 Nano cost?

Pricing for GPT-4.1 Nano on LLM Gateway starts at $0.10 per million input tokens and $0.40 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.

What is the context length of GPT-4.1 Nano?

GPT-4.1 Nano supports a context window of up to 1,000,000 tokens on its largest provider deployment.

Which providers serve GPT-4.1 Nano?

GPT-4.1 Nano is served by OpenAI, Azure through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.

Does GPT-4.1 Nano support tool calling and structured outputs?

Yes. GPT-4.1 Nano supports both tool (function) calling and structured JSON outputs through LLM Gateway.

When was GPT-4.1 Nano released?

GPT-4.1 Nano was released on April 14, 2025.