OpenAI: GPT-6 Astra Pro

Name: OpenAI: GPT-6 Astra Pro
Brand: openai
SKU: openai/gpt-6-astra-pro
Price: 17550.00 KRW
Availability: InStock

openai/gpt-6-astra-pro

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GPT-6 Astra Pro is the same underlying model as [GPT-6 Astra](https://openrouter.ai/openai/gpt-6-astra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

Modalities

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In / out price

₩17,550 / ₩87,750

Context

1.05M

Released

Sep 5, 2026

Pricing

Prices are quoted in Korean won. Changes to the exchange rate or margin show up immediately.

Input (prompt)	₩17,550 / 1M
Output (completion)	₩87,750 / 1M
Cache read	₩1,755 / 1M
Cache write	₩21,938 / 1M

1,000 input tokens plus 1,000 output tokens costs about ₩105.