The daily briefing

OpenAI tunes GPT-5.6 Sol in ChatGPT and widens GPT-5.6 Luna access for free users

Friday, August 7, 2026 · what moved in the AI release cycle in the last 24 hours.

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Good morning. OpenAI says GPT-5.6 Sol in ChatGPT is now giving Plus and Pro users more focused, reliable responses plus a new thought-level slider, while free users are moving toward GPT-5.6 Luna. On the benchmark front, Gemini 3.6 Flash is putting up solid numbers, scoring 73.7 on multimodal grounding and 70.2 on knowledge, edging out its Flash-Lite sibling across the board. Kimi K3 is the multimodal standout though, hitting 87.9 on grounding. Amazon Nova 2 Pro also logged a gdp-pdf score of 2 on epoch's eval. Enjoy your day!

After several quiet days dominated by benchmark updates, OpenAI provides the main development: GPT-5.6 Sol in ChatGPT gets more focused, reliable responses plus a thought-level slider for Plus and Pro users, while free users move toward GPT-5.6 Luna. Elsewhere, Gemini 3.6 Flash, Gemini 3.5 Flash-Lite, Kimi K3, and Amazon Nova 2 Pro log fresh benchmark scores, but no new model releases surfaced today.

An AI summary of the day’s tracked items. It may contain errors; every item below links to its source.

Top stories

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    Improving GPT-5.6 Sol in ChatGPT and expanding access to GPT-5.6 Luna for free users

    OpenAI improving GPT-5.6 Sol and expanding free access to GPT-5.6 Luna changes what most ChatGPT users get by default, a consequential shift from a frontier lab.

    GPT-5.6 Sol · OpenAI

Picked by AI from the day’s tracked items; every link goes to the source.

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