GPT-6 Luna and Claude Sonnet 5.5 Are Now Live

Larkpulse now features GPT-6 Luna and Claude Sonnet 5.5. Both write better than the models they replace, so your posts sound more like you and less like a chatbot.

Why Your Writing Gets Better

When you publish as a leader, founder or consultant, people can tell when a post wasn't really yours. Authentic writing needs two things: an AI that knows your ideas and voice, and an AI that can actually write with that knowledge.

Your second brain in Larkpulse covers the first. It holds your notes, sources, past posts and point of view. These new models improve the second.

What's Better

• Sharper, clearer writing. Drafts read more naturally and need less rewriting.
• Consistency. Tone and argument hold together from the first line to the last, even in longer pieces.
• Faster drafts. You get a first version sooner and can explore more angles in the same time.
• Lower running costs. Both models are more efficient than their predecessors.

Try It Today

GPT-6 Luna and Claude Sonnet 5.5 are live now. Open your workspace, draft a post from your second brain, and see how it reads. Tell us what you notice, because we read every message.