1st impression sol is doing things on my behalf I previously struggled to coach 5.5 to do without prompt. Already had a couple ohh that’s smart moments to myself
GPT-5.6 comes in three model tiers.
→ Sol handles long-horizon coding and agentic work that demands planning, tool use, and follow-through.
→ Terra balances performance and cost for everyday work.
→ Luna brings speed to well-defined, high-volume work.
Across knowledge-work evaluations, GPT-5.6 Terra surpasses GPT-5.5 at lower cost, while GPT-5.6 Luna nearly matches GPT-5.5’s peak performance at well under half the estimated API cost.
https://t.co/XLGYkgiOlE
ChatGPT Work is now rolled out to 100% of our Pro users. Open the ChatGPT mobile app on a phone near you and enjoy productivity on the go. Or install the new ChatGPT desktop app if you need full access to your apps, browser and local files.
One advice: Raise your ambition. GPT 5.6 Sol is different from what you might have seen before. 👀
New today:
- GPT 5.6 Sol, Terra, and Luna
- ChatGPT Work
- The new ChatGPT desktop app
- Unified plugins across ChatGPT & Codex
- Sites (Beta) in ChatGPT
- Multi-tab and enterprise auth in the Browser
- Faster Computer use
- and much more
Today’s release is very special to the team and me. Let’s walk through it:
5.6 livestream going now.
in addition to the model, 3 major product things.
1. ChatGPT Work--really big deal!
2. new ChatGPT desktop app
3. hosted sites
We’re excited to introduce Muse Spark 1.1, a significant upgrade from the first Muse Spark model we released earlier this year.
Along with this release, we are launching a public preview of the new Meta Model API where developers can access Muse Spark 1.1.
The model is also available now in "Thinking" mode in the Meta AI app and on https://t.co/wHkMPH82ZH.
Learn more: https://t.co/zGcA3XaWpN
⛰️ Symbolic, Tadej Pogacar is the first rider to reach the summit of the first Hors Catégorie climb of the #TDF2026.
⛰️ Comme un symbole, le premier col Hors Catégorie du #TDF2026 est franchi en tête par Tadej Pogacar.
Introducing a new way to reflect on how you use Claude.
Your monthly recap shows when you use Claude most and what you spent that time working on, with options to set quiet hours and nudges to take breaks. Find your dashboard in Settings under Reflect: https://t.co/8QAn47W5rI
(1) Today we're releasing Muse Spark 1.1 -- a strong agentic and coding model at a very low price. It's available through our new Meta Model API and in Meta AI.