Microsoft Corporation (MSFT) saw its shares climb 3.4% to $426.52 in late trading Thursday, outperforming major tech-focused ETFs, following a report that the company is preparing to announce new in-house artificial intelligence models at its upcoming Build developer conference. The stock traded over 32 million shares, reaching a market capitalization of approximately $3.18 trillion, as investors reacted to the potential of Microsoft deepening its AI capabilities beyond its reliance on partners like OpenAI.
According to Reuters, which cited The Information, Microsoft plans to introduce several proprietary AI models at the Build event in San Francisco next week. Among them is a coding model designed to enhance GitHub Copilot, the popular developer tool. Additional models for transcription, reasoning, speech, and image processing are also reportedly in the pipeline. Microsoft declined to comment on the report, Reuters said.
Market Context and Broader Gains
The rally in Microsoft shares was supported by a broader market upswing, with the S&P 500 and Nasdaq hitting intraday highs on Thursday. Positive sentiment was fueled by reports of progress on a potential U.S.-Iran ceasefire extension, though fresh inflation data kept some caution alive. The tech sector rose about 1.6%, according to Reuters, with the Invesco QQQ Trust (QQQ) up 0.9% and the SPDR S&P 500 ETF (SPY) gaining 0.6%.
“Traders were on a hair trigger” around deal talk, said Jamie Cox of Harris Financial Group, warning that inflation could linger longer than some investors hope. The broader tape provided a tailwind for Microsoft, which gained 3.8% as of 2:04 p.m. EDT after the coding-model report broke.
AI Strategy and Competitive Landscape
Microsoft’s move to develop its own AI models marks a significant shift in its strategy, as the company has primarily relied on models from OpenAI, Anthropic, and Google for GitHub Copilot. Reuters noted that Anthropic’s Claude Code is rapidly gaining traction in AI software tools, while Google and Amazon continue to apply pressure with their own AI plans. This competitive landscape is pushing Microsoft to accelerate its software and cloud offerings.
The company’s fiscal third-quarter revenue reached $82.9 billion, up 18% year-over-year, with Azure and other cloud-services revenue climbing 40%. CEO Satya Nadella highlighted that Microsoft’s AI business has hit an annualized revenue run rate of $37 billion, while CFO Amy Hood cited “strong execution and growing demand” for Microsoft Cloud.
Analyst Views and Anthropic Partnership
HSBC analyst Stephen Bersey sees Microsoft’s partnership with Anthropic as a potential major revenue driver, according to MarketWatch. He estimates Azure’s annual opportunity at $43 billion if Microsoft secures 30% of Anthropic’s expected compute demand by 2030, maintaining a $571 price target for the stock. Microsoft disclosed that Anthropic had locked in $30 billion in Azure compute purchases as of November, along with an additional gigawatt of contracted capacity. Both Nvidia (NVDA) and Microsoft have each committed to invest up to $10 billion and $5 billion, respectively, in Anthropic.
Risks and Outlook
Despite the positive news, risks remain. The new AI models may generate headlines but could struggle to lure developers away from established platforms. Building and operating data centers is capital-intensive and time-consuming. If inflation persists or investors grow concerned that Microsoft is overspending to maintain its lead, the gains from Thursday could quickly reverse.
The focus now shifts to the Build event, where traders will be looking for details on model quality, Copilot traction, pricing, and whether the new tools will translate into AI revenue without sparking fresh worries about rising costs. Microsoft’s announcement signals that the company is not content to rely solely on partners to drive its AI tempo, putting the market on notice that it is taking a more active role in shaping its own AI destiny.
