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Anthropic just released another incredible coding model — and the speed is unbelievable.

The new Claude Haiku 4.5 gives you all the intelligence of Sonnet 4.5 at only a fraction of the cost.

It’s leaner, it’s faster, it’s cheaper — and it even comes with a brand new feature never seen before in this line of models.

Haiku 4.5 is built for pure speed. Speed is what this is all about.

[Claude Haiku 4.5 demo 2]

This model is perfect for anything needing a real-time response — chat assistants, customer service bots, or coding copilots.

IDEs like Cursor have already added support for it — to make your development even smoother with quicker responses.

[Claude Haiku 4.5 demo 3]

Being significantly faster than Sonnet 4.5 definitely makes for a much snappier user experience. Near-premium performance for much less.

This is a model that can be deployed at massive scale — making powerful AI more accessible for anyone looking to manage costs — even powering free-tier user experiences.

And the new Extended Thinking ability makes it even better.

With Extended Thinking you can boost complex reasoning and get even better accuracy with your coding — thinking harder to handle multi-step problems that would have previously required a slower, larger model like Sonnet.

Haiku 4.5 even supports Computer Use — which means it can autonomously use your PC to carry out complex tasks:

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