
ChatGPT No Longer Holds a Clear Majority in AI-Assistant Market
Sensor Tower reports that ChatGPT remains the top AI assistant but now holds only 46.4% of users as of May 31, 2026—down from a majority earlier—with Claude at 10.3% and Gemini at 27.7%; other players total around 5%. The shift comes as OpenAI pivots toward enterprise and productivity, killed its video app Sora, started showing ads, and faces mixed sentiment amid a Pentagon deal and rival campaigns, while Anthropic grows its enterprise footprint.


