302.AI
Anthropic announced Claude Haiku 4.5 on October 15, 2025, positioning it as the company's latest small model available to all users, with the company explicitly stating that "what was recently at the frontier is now cheaper and faster." The launch announcement directly names the exact variant and frames it as delivering coding performance comparable to Claude Sonnet 4 at one-third the cost and more than twice the speed, while also surpassing Sonnet 4 on certain tasks such as computer use. Claude Haiku 4.5 is priced at $1 per million input tokens and $5 per million output tokens, and is available via the Claude API for developers. The launch post emphasizes multi-agent orchestration use cases, noting that Claude Sonnet 4.5 can decompose complex problems into multi-step plans and orchestrate multiple Haiku 4.5 instances to execute subtasks in parallel, and that the model is well suited to real-time, low-latency applications such as chat assistants, customer service agents, and pair programming. Third-party quotes from Warp and Augment embedded in the page describe Haiku 4.5 as a leap for agentic coding, with Augment's agentic coding evaluation reportedly placing it at 90% of Sonnet 4.5's performance. The model is positioned by Anthropic as a sub-agent and computer-use specialist complementing the larger Sonnet 4.5, not a replacement for it.
