Anthropic, the Amazon -backed OpenAI rival launches its most powerful group of artificial intelligence models yet: Claude 4.

The company said the two models, Claude Opus 4 and Claude Sonnet 4, are defining a new standard for AI agents. They can analyze thousands of data sources, execute long-running tasks, write human-quality content, and perform complex actions.

Anthropic, founded by former OpenAI research executives, launched its Claude chatbot in March 2023. Since then, it’s been part of the increasingly heated AI arms race taking place between startups and tech giants alike, a market that’s predicted to top $1 trillion in revenue within a decade.

Companies in seemingly every industry are rushing to add AI-powered chatbots and agents to avoid being left behind by competitors.

Anthropic stopped investing in chatbots at the end of last year and has instead focused on improving Claude’s ability to do complex tasks like research and coding, even writing whole code bases, according to Jared Kaplan, Anthropic’s chief science officer.

The more complex the task is, the more risk there is that the model is going to kind of go off the rails and we’re really focused on addressing that so that people can really delegate a lot of work at once to our models.”

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Kaplan says, “We’ve been training these models since last year and really anticipating them. I think these models are much, much stronger as agents and as coders. It was definitely a struggle internally just because some of the new infrastructure we were using to train these models made it very down-to-the-wire for the teams in terms of getting everything up and running.”