Key Takeaways
- Anthropic launched Claude Sonnet 4.6, featuring advanced "computer use" capabilities that allow the AI to autonomously navigate operating systems and execute multi-step workflows.
- Sherritt International (S) announced a suspension of its nickel and cobalt operations in Cuba due to critical fuel shortages, causing its stock to plummet more than 15% on the Toronto Stock Exchange.
- NYC Mayor Zohran Mamdani proposed a 9.5% property tax increase—the first in over two decades—to bridge a $5 billion budget gap, a move that has drawn sharp criticism from city fiscal watchdogs.
- New Zealand’s Q4 Producer Price Index (PPI) showed a 0.5% drop in input prices, signaling a significant cooling in manufacturing costs and potential deflationary pressure at the producer level.
Anthropic PBC released Claude Sonnet 4.6 on Tuesday, marking a major milestone in the development of autonomous AI agents. The new model can independently use computers for complex tasks such as filling out web forms, coordinating data across multiple browser tabs, and executing multi-step coding projects.
This release intensifies the competition with Alphabet Inc. (GOOGL) and OpenAI, which is heavily backed by Microsoft (MSFT). Anthropic claims the model offers stronger coding performance and improved defense against prompt-injection attacks, positioning it as a leader in enterprise-grade AI security.
In the commodities sector, Sherritt International (S) is set to pause mining and processing at its Moa joint venture in Cuba within the next week. The company cited severe fuel supply constraints as the primary driver, following a breakdown in planned deliveries to the island.
While the company’s Alberta refinery has enough inventory to continue operations until mid-April, the suspension in Cuba represents a significant blow to production guidance. Market analysts noted that the fuel crisis in Cuba has worsened following shifts in regional oil supply chains, directly impacting Sherritt's bottom line.
In municipal finance, New York City Mayor Zohran Mamdani unveiled a preliminary budget that includes a 9.5% property tax hike. The proposal aims to close a $5 billion deficit but relies on optimistic revenue forecasts and the controversial use of city reserve funds.
Governor Kathy Hochul has offered $1.5 billion in state aid to assist the city but maintained that the final decision on property taxes rests solely with the local administration. The proposal has already met resistance from the City Council, with critics arguing that the hike could exacerbate the city's ongoing affordability crisis.
Finally, economic data from New Zealand revealed a cooling trend in producer costs during the fourth quarter. The PPI Output index rose a marginal 0.1%, while PPI Input prices fell 0.5%, a sharp reversal from the previous quarter's 0.2% increase.
These figures suggest that inflationary pressures are easing significantly for New Zealand businesses. Economists suggest this data may provide the Reserve Bank of New Zealand with the necessary justification to maintain or accelerate its current cycle of interest rate cuts.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.