OpenAI competitor Anthropic has announced Claude 3.5 Sonnet, its most powerful artificial intelligence model yet. The company says it can equal or improve on OpenAI’s GPT-4o or Google’s Gemini across a number of tasks. The new model is already available to Claude users on the web and on iOS.

Claude is a chatbot that has become popular in the past year. Anthropic, which was founded by ex-OpenAI research executives, has support from the likes of Google, Salesforce and Amazon. In the past year, it’s closed five different funding deals totaling about $7.3 billion.

Claude 3.5 Sonnet will be the middle model in the lineup — Anthropic uses the name Haiku for its smallest model, Sonnet for the mainstream middle option, and Opus for its highest-end model. Yet, the company says 3.5 Sonnet outperforms 3 Opus.

Claude 3.5 Sonnet is free from the company’s website, Claude.ai, and in the Claude iPhone app. “It shows marked improvement in grasping nuance, humour, and complex instructions, and is exceptional at writing high-quality content with a natural, relatable tone,” the company said in a blog post. The chatbot can write, edit and execute codes.

Anthropic has also announced Artifacts, which allows a user to ask its Claude chatbot to, say, generate a text document or code and then opens the result in a dedicated window.

Last month, Instagram co-founder Mike Krieger joined the company as chief product officer. OpenAI’s former safety leader Jan Leike joined the company in May.