10:00 AM PDT · October 15, 2025 On Wednesday, Anthropic released Claude Haiku 4.5, the newest version of its smallest model, billed as offering similar performance to Sonnet 4 “at one-third the cost and more than twice the speed,” per a company blog post. While the Anthropic sites a range of new benchmark results to back up those performance claims. In the company’s testing, Haiku scored 73% on SWE-Bench verified and 41% on the command-line-focused Terminal-Bench — below Sonnet 4.5, but on par w...