- The use of AI in the workplace has nearly tripled multiple times in global office environments since 2023.
- ChatGPT lost significant market share as competing workplace AI tools rapidly expanded
- Google Gemini has become ChatGPT’s main competitor in the field of professional productivity workflows
AI adoption in the workplace has entered an extraordinary phase of acceleration in global office environments, as total time spent using AI tools nearly tripled between 2023 and 2024, then repeated this explosive growth through 2025.
A new report from DeskTime analyzed anonymized data from more than 50,000 users over three years, revealing growing competition with ChatGPT within workflows.
ChatGPT, which controlled 99.91% of all AI time tracked in 2023, saw this monopoly significantly broken, as according to DeskTime, which tracked power users who log in at least 26 hours per year, ChatGPT’s share fell to 74.71% in the first four months of 2026.
A once-dominant player loses his grip
Although a good number of offices still have ChatGPT in their workflows, power users loyal to ChatGPT have dropped from 100% to 75.61% during the same period.
This erosion mirrors what early Internet users saw as Firefox gradually lost ground to new alternatives.
“With AI, it’s often difficult to separate hype from reality, which is why DeskTime decided to examine what’s really happening in today’s workplace,” said Artis Rozentals, CEO of DeskTime.
“The numbers are compelling… AI is fundamentally redefining work, and the risk of falling behind increases exponentially. »
Gemini and Claude remain ChatGPT’s main rivals
Google’s Gemini has emerged as the leading challenger among workplace AI tools by capturing 14.38% of office AI time tracked so far in 2026.
Claude has seen an even more dramatic rise, now accounting for 8.56% of usage and showing the steepest upward curve this year.
Both rivals have converted casual experimenters into regular users at a rate ChatGPT can’t match.
However, Microsoft’s Copilot presents a puzzling contrast, as its share has stagnated at around 1% over several years.
Neither growth nor collapse seems to characterize the trajectory of this tool in offices.
Meanwhile, a category of smaller alternatives, including Perplexity and Mistral, have failed to gain a significant foothold.
The market for workplace AI agents increasingly resembles a three-horse race rather than a single-player field, and workplace professionals are actively diversifying their toolkits rather than sticking to a single familiar interface.
These numbers come from a single productivity tracking service and may not represent a generalized story of AI use.
The definition of “AI time” can vary across job functions and industries, in ways that can distort competitive comparisons.
Nonetheless, the current trend appears consistent enough to merit the attention of any dominant software vendor.
Whether ChatGPT can reverse this decline or follow Firefox into niche status remains an open question for the remainder of 2026.
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