# GPT-6 Sol and Luna carry Astra's communication style and 90% off cached input reads

OpenRouter says GPT-6 Sol and GPT-6 Luna use Astra's clearer, shorter, lower-jargon answers and OpenAI's improved prompt caching, with 90% off cached input reads.

Language: en
Time zone: America/Los_Angeles
Current time (UTC, cached as of): 2026-11-10T07:31:00.000Z
Query date (America/Los_Angeles): 2026-11-09

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Source: OpenRouter · Published 9/22/2026, 11:34:06

OpenRouter says GPT-6 Sol and GPT-6 Luna both carry Astra's communication style: clearer, shorter answers with less jargon. It also says both include OpenAI's improved prompt caching, with 90% off cached input reads.

Tags: OpenAI, GPT-6, OpenRouter, Prompt caching

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