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Published on
October 16, 2025
5 min read
Anthropic Launches a Faster, Cheaper Version of Claude Haiku AI Model
In Focus
- Anthropic has unveiled Claude Haiku 4.5 AI model
- Performance of the new AI model matches that of Sonnet 4
- Haiku 4.5 is cheaper and faster than Anthropic’s previous models
Anthropic has launched the Haiku 4.5 model. Claude Haiku 4.5 is the company’s latest version of its smallest model. According to TechCrunch, the new AI model matches Sonnet 4 in performance, but it’s twice as fast at a third of the cost.
Claude Haiku 4.5 is Designed for Production
Anthropic has optimized the Claude Haiku 4.5 model for production. As a lightweight AI model, Haiku 4.5 makes it easier for developers to deploy multiple agents simultaneously or in combination with other highly complex models. Anthropic says that for the first time, its latest AI model will make new ways of deployment in production possible.
“It’s opening up entirely new categories of what’s possible with AI in production environments, with Sonnet handling complex planning while Haiku-powered sub-agents execute at speed. We’re giving people a complete agent toolbox where each model has the right combination of intelligence, speed, and cost for different parts of the job,” Anthropic CPO Mike Krieger said.
Top Claude Haiku model features include:
- High intelligence
- Fast coding speeds
- Minimal server loads
- Combines with complex models
The latest Anthropic AI model upgrade will be available to all users immediately. It’s unclear whether Haiku 4.5 will be accessible in China since Anthropic restricted AI access in the Asian country last month. The AI startup believes that the release of the Claude Haiku 2 model will particularly appeal to subscribers of its free AI product versions due to its significant capabilities.
How Does Claude Haiku Differ from Previous Versions?
The major difference between Claude Haiku and Anthropic’s previous models is performance. According to Anthropic,the new AI model matches Sonnet 4 in performance, but it’s twice as fast and costs a third of Sonnet 4’s price.
“What was recently at the frontier is now cheaper and faster. Five months ago, Claude Sonnet 4 was a state-of-the-art model. Today, Claude Haiku 4.5 gives you similar levels of coding performance but at one-third the cost and more than twice the speed,” the company posted on its website.
Anthropic supported Haiku’s performance claims with its new benchmark tests. According to the AI startup, Haiku 4.5 registered a 73% score on the software engineering bench. Claude Haiku 4.5 also scored 41% on the Terminal-Bench.
Although these results are slightly lower than those of Anthropic’s Sonnet 4.5, they are comparable to those of Sonnet 4, Gemini 2.5, and GPT-5. Anthropic tests showed similar results for tool use, visual reasoning, and computer use.
Anthropic launched Haiku 4.5 weeks after signing an enterprise AI deal with Deloitte that will make Claude accessible to employees across the company’s global network.
Anthropic’s Haiku Model Launch at a Glance:
- Claude Haiku 4.5 model is optimized for production
- The new model is available to all Claude users immediately
- Haiku’s performance is comparable to that of Sonnet 4 and Gemini 2.5
- Haiku 4.5 model will most useful in software development
- Last update on Haiku model series was a year ago
New Model Will Benefit Developers More
The new Haiku 4.5 model is expected to be most useful in software development environments where Claude Code, which is available to enterprise customers, is already popular and speed is crucial.
Developers who need fast, real-time AI for chatbots, coding, or customer support will benefit more from the model’s smart and speedy performance.
“Our early testing shows that Claude Haiku 4.5 brings efficient code generation to GitHub Copilot with comparable quality to Sonnet 4 but at faster speed. Already, we’re seeing it as an excellent choice for Copilot users who value speed and responsiveness in their AI-powered development workflows,” GitHub’s Distinguished Product Manager, Mathew Isabel said.
Anthropic launched Claude Haiku 4.5 following a series of major releases. The new AI model was launched two weeks after Sonnet 4.5 and about two months after the launch of Opus 4.1. The two models have been touted for their cutting-edge performance. Anthropic last updated the Haiku series about a year ago.
