How effective is Haiku 5.5? Two problems from a Thai video clip and a price tag that needs to be figured out.
By Nokka | November 1, 2026 Anthropic launched Claude Haiku 5.5 on October 7, 2026, and called it the smallest, cheapest, and most capable model the company has ever made. [1] The price per token is much cheaper than Haiku 4.5, and the company claims that the cost of running jobs has decreased by an average of around 75 percent. [1] Whether that number is real, and how far a model of this small size can be used for real work, has been tested by a Thai person in a short clip. [2] What does that clip test…
Anthropic's Claude Haiku 5.5 model, launched on October 7, 2026, is claimed to be the company's smallest, fastest, and most capable model yet. A Thai user tested the model using Claude Code, giving it two tasks: responding to customer inquiries and drafting a five-page slide for a business owner starting to use AI. The user reported that the model completed the tasks quickly, but noted some limitations, such as not thoroughly reviewing the slide's content.
Anthropic reports that Haiku 5.5's performance on Terminal-Bench 4.0 is 39.2%, compared to 70.6% for Sonnet 5.5, and its pricing is significantly lower, with a 75% reduction in costs for running jobs. However, an independent test by Artificial Analysis yielded a lower performance score of 33% on Terminal-Bench 4.0.
Written by urgent.news from Dev.to's report — not a translation of it. Machine-written — may contain errors; check the original before relying on it.
