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GPT-5 Nano

Cortecs

GPT-5 Nano by Cortecs costs $0.06 per 1M input tokens and $0.44 per 1M output tokens, with a 400K-token context window.

Pricing

Input (per 1M tokens)
$0.06
Output (per 1M tokens)
$0.44
Cached input (per 1M)
$0.02

Specifications

Provider
Cortecs
Context window
400K tokens
Parameters
—
Released
Aug 2025
Open weights
No
Frontier model
No

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FAQ

How much does GPT-5 Nano cost?

GPT-5 Nano is priced at $0.06 per 1M input tokens and $0.44 per 1M output tokens. Output tokens cost more than input.

What is GPT-5 Nano's context window?

GPT-5 Nano supports a context window of 400K tokens — the maximum prompt plus response length it can handle in a single request.

Is GPT-5 Nano open weight?

No — GPT-5 Nano is a closed/proprietary model accessed via API.

Data as of 2026-11-01. Source: models.dev (open). Pricing is per 1M tokens (USD); confirm with the provider before production use.