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How to know which AI tools are best for your business needs—with examples

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If you’re finding it tricky to navigate the ever-changing generative AI landscape, which shifts weekly as vendors compete to top leaderboards, you’re not alone. 

An AI training gap has emerged across the business world. According to one recent survey, two-thirds of leaders expect employees to have AI skills, but only a third of companies have clear policy on what technology to use—and how to use it.

While utilizing generative AI chatbots has a relatively low barrier to entry, figuring out the right model remains a challenge for people who have not studied their nuances. Here’s what you need to know about picking the right AI tools, such as ChatGPT, Claude, Gemini, Perplexity, and Copilot—and the underlying models that power them.

Learn more: Mastering AI at work: a practical guide to using ChatGPT, Gemini, Claude, and more

Speed date with AI

Today’s generative AI is still relatively new, and for this reason, there is an abundance of models on the market; no one company or model dominates. As a result, experimenting with a variety of tools is beneficial.

“Think of it like test driving a car,” Jules White, a computer-science professor at Vanderbilt University, told Fortune. “What is it like to drive on the highway, to park, how does the stereo work, how cushy is the seat, etc. I suggest doing the equivalent for models.”

For Maggie Vo, head of user education at Anthropic, that test drive should include consideration of three factors: task complexity, time sensitivity, and the need to refine your work. 

Something like writing a strategic plan might call for using the most capable model whereas a faster model might be most useful for reformatting data or quick summaries. If you’re planning to iterate multiple times, then use a combination: “Start with a smarter model to refine your approach, then use a smaller model to execute,” she said.

“The real skill is developing ‘Platform Awareness’—understanding not just different models but different AI systems entirely,” Vo added. “What works in Claude might need adjustment in other systems. Experiment across platforms to build intuition about their unique strengths.”

In practice, this can be as simple as typing the same prompt in different AI chatbots—as well as the models for each one (the option to change may be at top of the screen or close to the search bar)—and compare which tool gives the most helpful response.

Screenshot from Anthropic’s Claude

As Vo implied, as AI models have been developed, certain tasks are more easily completed with some AI models over others. The faster, typically free models, are usually best for simple chats—whereas the more advanced models may cost a fee and take more than a few moments to process, but will typically yield better results.

The best models, according to UPenn’s Ethan Mollick

Ethan Mollick, a professor at the University of Pennsylvania’s Wharton School—is one of the most widely-read experts on how to use AI models to help with business tasks. He is known for his prolific research and analysis on LinkedIn. According to a recent Substack post, his everyday AI use is focused within the products of OpenAI, Anthropic, and Google.

“With all (three) of the options, you get access to both advanced and fast models, a voice mode, the ability to see images and documents, the ability to execute code, good mobile apps, the ability to create images and video (Claude lacks here, however), and the ability to do Deep Research,” he wrote.

The ultimate challenge comes with deciding which model is best to use, he added. But like White, he connects it to selecting a vehicle: “Think of it like choosing between a sports car and a pickup truck; both are vehicles, but you’d use them for very different tasks.”

Mollick summarized the decision making into three categories: good for chats, good for work, and good for hard problems.

Good for chats

Claude 4 Sonnett, ChatGPT-4o, and Gemini 2.5 Flash are fast—and not as smart, according to Mollick. But as generally free AI products, they are the most widely accessible and can still make a difference in workplace efficiency.

Here are some examples of their capabilities:

  • Market and competitive analysis: “Compare OpenAI, Anthropic, and Google Gemini’s positioning in the enterprise AI space.”
  • Financial modeling and forecasting: “Create a three-year revenue forecast for a SaaS startup with 20% YoY growth and 75% gross margin.”
  • Content creation and editing: “Draft a LinkedIn post announcing a $10M Series A funding round that sounds confident but not boastful.”

Good for work 

Claude 4 Opus, ChatGPT o3, and Gemini 2.5 Pro are smarter, have lower error rates, but are slower, according to Mollick. They may still hallucinate, but tend to be more successful at coding, logic, or solving tougher problems that require multiple steps. Here’s an example of their capability: 

  • Market and competitive intelligence dashboards:

Who better to summarize AI’s priorities than AI itself? Here’s what the models had to say:

Prompt: “In one sentence, please describe your relative strengths. I am writing this in the context of other generative tools, including [Competitor] and [Competitor].”

OpenAI’s GPT-4o: “ChatGPT’s relative strength lies in its ability to generate highly polished, context-aware, and conversationally natural responses—particularly strong in editing, writing, and task-oriented problem-solving—while integrating tools like code execution and image analysis more seamlessly than Claude or Gemini.”

Anthropic’s Claude Sonnet 4: “I excel at nuanced reasoning, ethical decision-making, and producing well-structured, thoughtful responses while maintaining strong safety guardrails, though I’m generally more cautious and less willing to engage with borderline requests compared to some other AI assistants.”

Google’s Gemini 2.5 Flash: “Gemini excels in multimodal understanding and generation, seamlessly integrating text, code, images, and other data formats while leveraging real-time information from Google’s vast ecosystem to provide highly accurate and contextually rich responses.”

Some other examples include the ability to conduct customer-service automation & quality control as well as financial-scenario modeling & risk analysis. Mollick admitted he primarily uses the “Good for work” models, though he also has favorites for specific tasks outside of this list, like using GPT-4.5 when writing.

Good for hard problems

Claude 4 Opus extended thinking, ChatGPT-o3-pro, and Gemini 2.5 Pro are the most advanced AI models on the market, and for that reason, they remain slow and have limited use, Mollick added in his Substack post.

Here’s an example of a prompt that would push the limit of ChatGPT of, but ChatGPT-o3-pro might be best equipped to tackle:

“Below is the full text of a 180-page Phase III oncology trial dossier (including statistical appendices and 40 pages of adverse-event tables).

  • Extract every efficacy endpoint, its p-value, confidence interval, and sample size.
  • Re-compute the primary endpoint’s hazard ratio from the raw survival-curve data provided in Appendix C, flagging any inconsistencies with the sponsor’s reported figure.
  • Summarize all Grade 3–4 adverse events, grouped by organ system, and calculate their absolute-risk increase versus control.
  • Draft a 500-word briefing for the FDA that:
  • Identifies any statistical or methodological red flags.
  • Assesses whether the benefit–risk profile justifies accelerated approval.
  • Proposes two post-marketing study designs to validate long-term safety.”

Other models

No matter what model or AI company used, it’s always important to double check the AI for errors or hallucinations. Accuracy is the priority of Perplexity, according to Jesse Dwyer, head of communications at the AI company.

“Perplexity’s sole focus is accurate, trustworthy AI—we use all top models and post-train them for accuracy,” Dwyer said. “Models that have been trained to experience some hallucination are helpful if you want videos of high-diving cats, but they can be dangerous when you are making business or financial decisions.”

Copilot is also a widely used AI chatbot, thanks to its integration with Microsoft products, but it can be difficult to switch between models. DeepSeek r1 and Grok by Elon Musk’s xAI also are options on the market, but, according to Mollick, each have missing features.

Mollick did not respond to Fortune’s request for comment.

The takeaway: Practice makes perfect

While there remains no perfect method for using AI in the workplace, the most effective ways to remain on top of your game is exploration and education—and that starts with simply using them.

“The difference between casual users and power users isn’t prompting skill (that comes with experience); it’s knowing these features exist and using them on real work,” Mollick wrote.

And because many business leaders, including CEOs, have already begun using AI, Dwyer suggested trying to emulate how they are using it in their work.

“AI is one of the first business tools adopted first by managers instead of frontline workers,” he told Fortune. “It makes sense that leaders with experience getting the best work from their teams and software tools will be naturally prepared to work with AI.”



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Apple rocked by executive departures, with chip chief at risk of leaving next

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Apple Inc., long the model of stability in Silicon Valley, is suddenly undergoing its biggest personnel shake-up in decades, with senior executives and key engineers both hitting the exits.

In just the past week, Apple’s heads of artificial intelligence and interface design stepped down. Then the company announced that its general counsel and head of governmental affairs were leaving as well. All four executives have reported directly to Chief Executive Officer Tim Cook, marking an exceptional level of turnover in Apple’s C-suite. 

And more changes are likely coming. Johny Srouji — senior vice president of hardware technologies and one of Apple’s most respected executives — recently told Cook that he is seriously considering leaving in the near future, according to people with knowledge of the matter. Srouji, the architect of Apple’s prized in-house chips effort, has informed colleagues that he intends to join another company if he ultimately departs.

At the same time, AI talent has been fleeing for tech rivals — with Meta Platforms Inc., OpenAI and a variety of startups poaching many of Apple’s engineers. That threatens to hamper the company’s efforts to catch up in artificial intelligence, an area where it’s struggled to make a mark. 

It all adds up to one of the most tumultuous stretches of Cook’s tenure. Though the CEO himself is unlikely to leave imminently, the company has to rebuild its ranks and figure out how to thrive in the AI era. 

Within the company, some of the departures are cause for deep concern — with Cook looking to stave off more with stronger compensation packages for key talent. In other cases, the exits just reflect the fact that veteran executives are nearing retirement age. Still, many of the shifts constitute a disconcerting brain drain.

While Cook maintains that Apple is working on the most innovative product lineup in its history — a slate that’s expected to include foldable iPhones and iPads, smart glasses, and robots — Apple hasn’t launched a successful new product category in a decade. That leaves it vulnerable to poaching from a range of nimbler rivals better equipped to develop the next generation of devices around AI.

A spokesperson for Cupertino, California-based Apple declined to comment.

The exit of Apple’s AI chief, John Giannandrea, followed a number of stumbles in generative AI. The company’s Apple Intelligence platform has suffered from delays and subpar features. And a highly touted overhaul to the Siri voice assistant is roughly a year and a half behind schedule. Moreover, the software will rely heavily on a partnership with Alphabet Inc.’s Google to fill the gaps in its capabilities.

Against that backdrop, Apple began phasing Giannandrea out of his role in March but is allowing him to remain until next spring.

Within Apple, employees have long expected Giannandrea to step aside — and some have expressed surprise that he’s sticking around as long as he is.

But parting ways with Giannandrea sooner would have been taken as public acknowledgment of a problem, people familiar with the situation said. 

Design veteran Alan Dye, meanwhile, is heading to Meta’s Reality Labs unit — a remarkable defection to one of Apple’s fiercest rivals.

Within a day of that news, Apple turned around and announced that it had poached one of Meta’s executives. Jennifer Newstead, chief legal officer at the social networking company, will become Apple’s general counsel. She helped oversee Meta’s successful antitrust battle with the US Federal Trade Commission — experience that’s likely to prove useful in Apple’s own legal fight with the Justice Department over alleged anticompetitive practices.

Read More: Apple Taps Meta Lawyer as General Counsel in Latest Shake-Up

Newstead is taking over for Kate Adams, who served eight years in the role and will retire in late 2026. Lisa Jackson, vice president for environment, policy and social initiatives, is retiring as well — and her duties will be divided up among other executives. 

Though the news of Adams’ departure was jarring — especially considering the number of Apple legal disputes currently on her plate — she’s had a fairly long tenure for a general counsel at the company.

Jackson, meanwhile, was widely expected to be leaving soon. The former Obama administration official has kept a lower profile during President Donald Trump’s second term, opting to dispatch deputies to handle discussions with the White House. Bloomberg News had previously reportedthat she was considering retirement.

These exits follow an even bigger departure. Jeff Williams, Cook’s longtime No. 2, retired last month after a decade as chief operating officer. Another veteran leader, Chief Financial Officer Luca Maestri, stepped into a smaller role at the start of 2025 and is likely to retire in the not-too-distant future.

The flurry of retirements reflects a demographic reality for Apple. Many of its most senior executives have been at the company for decades and are roughly the same age — either in their 60s or nearing it.

Cook turned 65 last month, fueling speculation that he would join the exodus. People close to the executive have said that he’s unlikely to leave soon, though succession planning has been underway for years. John Ternus, Apple’s 50-year-old hardware engineering chief, is considered by employees to be the frontrunner CEO candidate.

When Cook does step down, he’s likely to shift into the chairman job and maintain a high level of influence over the iPhone maker. That makes it unlikely that Apple will select an outsider as the next CEO, even as executives like Nest Labs founder Tony Fadell are being pushed as candidates by people outside the company. Though Fadell helped invent Apple’s iconic iPod, he left the tech giant 15 years ago on less-than-friendly terms. 

For now, Cook remains active at Apple and travels extensively on behalf of the company. However, the executive does have an unexplained tremor that causes his hands to shake from time to time — something that’s been discussed among Apple employees in recent months.

The shaking has been noticed by both executives and rank-and-file staff during meetings and large company gatherings, according to people familiar with the matter. But people close to Cook say he is healthy and refute rumors to the contrary that have circulated in Silicon Valley.

Read More: The Apple Insiders in the Running to Succeed Cook

A more imminent risk is the departure of Srouji, the chip chief. Cook has been working aggressively to retain him — an effort that included offering a substantial pay package and the potential of more responsibility down the road. One scenario floated internally by some executives involves elevating him into the role of chief technology officer. Such a job — overseeing a wide swath of both hardware engineering and silicon technologies — would potentially make him Apple’s second-most-powerful executive.

But that change would likely require Ternus to be promoted to CEO, a step the company may not be ready to take. And some within Apple have said that Srouji would prefer not to work under a different CEO, even with an expanded title.

If Srouji does depart, which isn’t yet a certainty, the company would likely tap one of his two top lieutenants — Zongjian Chen or Sribalan Santhanam — to replace him.

The recent shifts are already reshaping Apple’s power structure. More authority is now flowing to a quartet of executives: Ternus, services chief Eddy Cue, software head Craig Federighi and new COO Sabih Khan. Apple’s AI efforts have been redistributed across its leadership, with Federighi becoming the company’s de facto AI chief.

Ternus is also poised to take a starring role next year in the celebration of Apple’s 50th anniversary, further raising his profile. And he’s been given more responsibility over robotics and smart glasses — two areas seen as future growth drivers. 

Further reorganization is likely. Deirdre O’Brien, head of retail and human resources, has been with Apple for more than 35 years, while marketing chief Greg Joswiak has spent four decades at the company. Apple has elevated the key lieutenants under both executives, preparing for their eventual retirements.

At the same time, Apple is contending with a talent drain in its engineering ranks. This has become a serious concern for the executive team, and Apple’s human resources organization has been instructed to ramp up recruitment and retention efforts, people familiar with the situation said.

Robby Walker, who had overseen Siri and an initiative to build a ChatGPT-like search experience, left the company in October. His replacement, Ke Yang, departed after only weeks in the job, joining Meta’s new Superintelligence Labs.

To help fill the void left by Giannandrea, Apple hired Google and Microsoft Corp. alum Amar Subramanya as vice president of artificial intelligence. He’ll report to Federighi, the software chief.

But there’s been a broader collapse within Apple’s artificial intelligence organization, spurred by the departure of AI models chief Ruoming Pang. Pang, along with colleagues such as Tom Gunter and Frank Chu, went to Meta, which has used eye-popping compensation packages to lure talent.

Roughly a dozen other top AI researchers have left the organization, which is suffering from low morale. The company’s increasing use of external AI technology, such as Google’s Gemini, has been a particular concern for employees working on large language models.

Apple’s AI robotics software team has also seen widespread departures, including its leader Jian Zhang, who likewise joined Meta. That group is tasked with creating underlying technology for products such as a tabletop robot and a mobile bot.

The hardware team for the tabletop device, code-named J595, has been bleeding talent too — with some headed to OpenAI. Dye also was a key figure overseeing that product’s software design.

Read More: Apple’s AI Push to Hinge on Robots, Security, Lifelike Siri

The user interface organization has been hit as well, with several team members leaving between 2023 and this year. That attrition culminated in Dye’s exit, which stemmed partly from a desire to integrate AI more deeply into products and a feeling that Apple hasn’t been keeping pace in the area. Another top interface leader under Dye, Billy Sorrentino, also left for Meta.

The hardware side of the design group — the team responsible for the physical look and feel of Apple’s products — has been nearly wiped out over the last half-decade. Many staffers followed former design chief Jony Ive to his studio, LoveFrom, or went to other companies.

Longtime interface designer Stephen Lemay is now stepping in as Dye’s replacement. Cook is also taking on more responsibility for overseeing design, a role that had been held by Williams.

Ive, a visionary designer who helped create the iPhone, iPad and Apple Watch, is now working with OpenAI to develop a new generation of AI-enhanced devices. That company acquired Ive’s startup, io, for more than $6 billion to jump-start its hardware business — setting its sights on Apple’s territory.

Like Meta, OpenAI has become a key beneficiary of Apple’s talent flight. The San Francisco-based company has hired dozens of Apple engineers across a wide range of fields, including people working on the iPhone, Mac, camera technology, silicon design, audio, watches and the Vision Pro headset. 

In a previously unreported development, the AI company is hiring Apple’s Cheng Chen, a senior director in charge of display technologies. His purview included the optics that go into the Vision Pro headset. OpenAI recruited Tang Tan, one of Apple’s top hardware engineering executives, two years ago.

Read More: Apple’s Star Designer Who Introduced iPhone Air Leaves Company

And over the summer, the company lost the dean of Apple University, the internal program designed to preserve the company’s culture and practices after the passing of co-founder Steve Jobs. Richard Locke, who spent nearly three years at Apple, left to become dean of the Massachusetts Institute of Technology’s business school.



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Epstein grand jury documents from Florida can be released by DOJ, judge rules

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A federal judge on Friday gave the Justice Department permission to release transcripts of a grand jury investigation into Jeffrey Epstein’s abuse of underage girls in Florida — a case that ultimately ended without any federal charges being filed against the millionaire sex offender.

U.S. District Judge Rodney Smith said a recently passed federal law ordering the release of records related to Epstein overrode the usual rules about grand jury secrecy.

The law signed in November by President Donald Trump compels the Justice Department, FBI and federal prosecutors to release later this month the vast troves of material they have amassed during investigations into Epstein that date back at least two decades.

Friday’s court ruling dealt with the earliest known federal inquiry.

In 2005, police in Palm Beach, Florida, where Epstein had a mansion, began interviewing teenage girls who told of being hired to give the financier sexualized massages. The FBI later joined the investigation.

Federal prosecutors in Florida prepared an indictment in 2007, but Epstein’s lawyers attacked the credibility of his accusers publicly while secretly negotiating a plea bargain that would let him avoid serious jail time.

In 2008, Epstein pleaded guilty to relatively minor state charges of soliciting prostitution from someone under age 18. He served most of his 18-month sentence in a work release program that let him spend his days in his office.

The U.S. attorney in Miami at the time, Alex Acosta, agreed not to prosecute Epstein on federal charges — a decision that outraged Epstein’s accusers. After the Miami Herald reexamined the unusual plea bargain in a series of stories in 2018, public outrage over Epstein’s light sentence led to Acosta’s resignation as Trump’s labor secretary.

A Justice Department report in 2020 found that Acosta exercised “poor judgment” in handling the investigation, but it also said he did not engage in professional misconduct.

A different federal prosecutor, in New York, brought a sex trafficking indictment against Epstein in 2019, mirroring some of the same allegations involving underage girls that had been the subject of the aborted investigation. Epstein killed himself while awaiting trial. His longtime confidant and ex-girlfriend, Ghislaine Maxwell, was then tried on similar charges, convicted and sentenced in 2022 to 20 years in prison.

Transcripts of the grand jury proceedings from the aborted federal case in Florida could shed more light on federal prosecutors’ decision not to go forward with it. Records related to state grand jury proceedings have already been made public.

When the documents will be released is unknown. The Justice Department asked the court to unseal them so they could be released with other records required to be disclosed under the Epstein Files Transparency Act. The Justice Department hasn’t set a timetable for when it plans to start releasing information, but the law set a deadline of Dec. 19.

The law also allows the Justice Department to withhold files that it says could jeopardize an active federal investigation. Files can also be withheld if they’re found to be classified or if they pertain to national defense or foreign policy.

One of the federal prosecutors on the Florida case did not answer a phone call Friday and the other declined to answer questions.

A judge had previously declined to release the grand jury records, citing the usual rules about grand jury secrecy, but Smith said the new federal law allowed public disclosure.

The Justice Department has separate requests pending for the release of grand jury records related to the sex trafficking cases against Epstein and Maxwell in New York. The judges in those matters have said they plan to rule expeditiously.

___

Sisak reported from New York.



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Miss Universe co-owner gets bank accounts frozen as part of probe into drugs, fuel and arms trafficking

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Mexico’s anti-money laundering office has frozen the bank accounts of the Mexican co-owner of Miss Universe as part of an investigation into drugs, fuel and arms trafficking, an official said Friday.

The country’s Financial Intelligence Unit, which oversees the fight against money laundering, froze Mexican businessman Raúl Rocha Cantú’s bank accounts in Mexico, a federal official told The Associated Press on condition of anonymity because he was not authorized to comment on the investigation.

The action against Rocha Cantú adds to mounting controversies for the Miss Universe organization. Last week, a court in Thailand issued an arrest warrant for the Thai co-owner of the Miss Universe Organization in connection with a fraud case and this year’s competition — won by Miss Mexico Fatima Bosch — faced allegations of rigging.

The Miss Universe organization did not immediately respond to an email from The Associated Press seeking comment about the allegations against Rocha Cantú.

Mexico’s federal prosecutors said last week that Rocha Cantú has been under investigation since November 2024 for alleged organized crime activity, including drug and arms trafficking, as well as fuel theft. Last month, a federal judge issued 13 arrest warrants for some of those involved in the case, including the Mexican businessman, whose company Legacy Holding Group USA owns 50% of the Miss Universe shares.

The organization’s other 50% belongs to JKN Global Group Public Co. Ltd., a company owned by Jakkaphong “Anne” Jakrajutatip.

A Thai court last week issued an arrest warrant for Jakrajutatip who was released on bail in 2023 on the fraud case. She failed to appear as required in a Bangkok court on Nov. 25. Since she did not notify the court about her absence, she was deemed to be a flight risk, according to a statement from the Bangkok South District Court.

The court rescheduled her hearing for Dec. 26.

Rocha Cantú was also a part owner of the Casino Royale in the northern Mexican city of Monterrey, when it was attacked in 2011 by a group of gunmen who entered it, doused gasoline and set it on fire, killing 52 people.

Baltazar Saucedo Estrada, who was charged with planning the attack, was sentenced in July to 135 years in prison.



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