# TestingCatalog — OpenAI launches faster, cheaper GPT-6 Sol and Luna

- Company: TestingCatalog (testingcatalog.com)
- Announced: 2026-09-22T21:08:50+00:00
- Category: new-model
- Coverage: not counted
- Announcement: yes
- Group: models
- Source: https://www.testingcatalog.com/openai-launches-faster-cheaper-gpt-6-sol-and-luna/
- Record: https://forck.live/items/13123-openai-launches-faster-cheaper-gpt-6-sol-and-luna
- Subject: AI models / agents / unreleased features
- Models affected: GPT-6 Sol, GPT-6 Luna, GPT-6 Astra
- Pricing: Per million tokens: Sol $2 input, $10 output; Luna $0.10 input, $0.50 output

OpenAI announced GPT-6 Sol and GPT-6 Luna, two new models in the GPT-6 family that are faster and more affordable than GPT-6 Astra. Sol ($2 input, $10 output per million tokens) and Luna ($0.10 input, $0.50 output) aim to reduce costs for professional work, coding, and agentic tasks. The models are rolling out in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise and Edu users; Luna is also available to Free and Go users in the desktop app.

## Evidence

Verbatim from https://www.testingcatalog.com/openai-launches-faster-cheaper-gpt-6-sol-and-luna/:

> Per million tokens, Sol costs $2 for input and $10 for output, while Luna costs $0.10 for input and $0.50 for output.

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Record: https://forck.live/items/13123-openai-launches-faster-cheaper-gpt-6-sol-and-luna
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