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OpenAI: GPT-4.1 Nano

OpenAI

OpenAI: GPT-4.1 Nano by OpenAI costs $0.10 per 1M input tokens and $0.40 per 1M output tokens, with a 1M-token context window.

Pricing

Input (per 1M tokens)
$0.10
Output (per 1M tokens)
$0.40
Cached input (per 1M)
$0.03
ProviderInput / 1MOutput / 1M
openrouter$0.10$0.40
OpenAI$0.10$0.40

Specifications

Provider
OpenAI
Context window
1M tokens
Parameters
—
Released
Apr 2025
Open weights
No
Frontier model
No

Benchmarks

Speed & latency

Time to first token
0.81s

Fastest host: azure (via vercel-ai-gateway).

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FAQ

How much does OpenAI: GPT-4.1 Nano cost?

OpenAI: GPT-4.1 Nano is priced at $0.10 per 1M input tokens and $0.40 per 1M output tokens. Output tokens cost more than input.

What is OpenAI: GPT-4.1 Nano's context window?

OpenAI: GPT-4.1 Nano supports a context window of 1M tokens — the maximum prompt plus response length it can handle in a single request.

Is OpenAI: GPT-4.1 Nano open weight?

No — OpenAI: GPT-4.1 Nano is a closed/proprietary model accessed via API.

Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.