# OpenAI — Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users

- Company: OpenAI (openai.com)
- Announced: 2026-08-06T10:00:00+00:00
- Category: model-update
- Subject: GPT / ChatGPT / API
- Models affected: GPT-5.6 Sol, GPT-5.6 Luna
- Source: https://openai.com/index/improving-gpt-5-6-sol-in-chatgpt
- Record: https://forck.live/items/3622-improving-gpt-5-6-sol-in-chatgpt-and-expanding-access-to-gpt-5-6-luna-for-free

OpenAI announces an improved version of GPT-5.6 Sol in ChatGPT with better accuracy and consistency, and expands access to GPT-5.6 Luna for free users, including unlimited everyday chats.

## Evidence

Verbatim from https://openai.com/index/improving-gpt-5-6-sol-in-chatgpt:

> ChatGPT introduces improved GPT-5.6 Sol with better accuracy and consistency, plus expanded access for free users and unlimited everyday chats with GPT-5.6 Luna.

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Record: https://forck.live/items/3622-improving-gpt-5-6-sol-in-chatgpt-and-expanding-access-to-gpt-5-6-luna-for-free
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