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Summarize
OpenAI's market share drops amid rising AI competition
The sudden drop is a stark contrast to its previous standing

OpenAI's market share drops amid rising AI competition

Nov 08, 2025
05:02 pm

What's the story

OpenAI, the leading artificial intelligence (AI) company, has witnessed a major drop in its market share. The company's share fell from 75% in October to 61% this month, marking the largest monthly decline in search market share. The sudden drop is a stark contrast to its previous standing and highlights the growing competition from smaller players in the industry.

Market dominance

Still dominating generative AI chatbot space

Despite the recent decline, OpenAI remains the leader in the generative AI chatbot space. As of November 7, the company held a whopping 61% market share, according to data published by First Page Sage. This shows that while competitors like Perplexity and Claude AI are gaining ground, OpenAI still has a stronghold over this particular segment of the industry.

Chatbot rankings

Top 5 generative AI chatbots

The market share of the top five generative AI chatbots as of November 7 is as follows: OpenAI's ChatGPT (excluding Copilot) leads with a 61% market share and 7% quarterly growth. Microsoft's Copilot comes second with a 14.1% market share and 6% quarterly growth. Google's Gemini follows closely with a 13.4% market share and an impressive 8% quarterly growth rate, while Perplexity and Claude AI have smaller shares but higher growth rates at 6.4% (13%) and 3.8% (14%), respectively.

Growth leaders

Fastest-growing generative AI chatbots in the US

The fastest-growing generative AI chatbots in the US as of October 3 are led by OpenAI's ChatGPT (excluding Copilot) with a 61% market share and 7% quarterly growth. However, its growth rate has slowed down. Business-oriented Claude AI is among the top performers in this growth report, indicating that general-purpose AI chatbots have seen steady user acquisition among startups.