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TechRadar
TechRadar
Eric Hal Schwartz

Anthropic’s Claude Haiku 4.5 isn’t flashy – but it might be your next favorite model for getting things done fast

Claude Anthropic TechRadar
Claude Haiku 4.5.
  • Anthropic's new Claude Haiku 4.5 model promises twice the speed but nearly the same power as the larger Sonnet model.
  • It's now the default model for all Claude free users.
  • Haiku 4.5 can act as a sub-agent for larger models, and outperforms previous small models.

Anthropic has dropped Claude Haiku 4.5, a new slim and speedy AI model appropriately named for the famously brief poetic form. The company claims Claude Haiku 4.5 is almost as powerful as its much larger sibling, Claude Sonnet 4, but much cheaper and able to run at double the speed.

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