Back to memos

2 updates · 2 appsSeptember 23, 2026

ChatGPT introduces two new AI models, GPT-6 Sol and Luna

ChatGPT has two new AI brains, GPT-6 Sol and GPT-6 Luna, offering different levels of smarts and speed for your tasks.

Breaking

ChatGPTChatGPT has two new AI brains, GPT-6 Sol and GPT-6 Luna, offering different levels of smarts and speed for your tasks.

ChatGPT

1 update

Expanded summary · ChatGPT

ChatGPT has two new AI brains, GPT-6 Sol and GPT-6 Luna, offering different levels of smarts and speed for your tasks.

OpenAI has released its next generation of AI, called GPT-6. It comes in two versions: 'Sol' is the most powerful and capable version for complex problems, while 'Luna' is designed to be faster and more affordable for everyday questions and tasks.

You can choose which one to use based on what you need to get done.

Original reportingIntroducing GPT-6 Sol and LunaRead original

Claude

1 update

Expanded summary · Claude

Claude released a new version of its most powerful AI, Opus 5.5, which is smarter, cheaper to use, and has better safety features.

Anthropic has updated its top-tier AI model to Opus 5.5. The company says this new version is better at tasks like coding and is also less expensive to use.

It also includes stronger security protections to prevent misuse.

Original reportingAnthropic launches Claude Opus 5.5 with stricter safeguards for cybersecurity (reported by The Verge)Read original