Recently, Google’s aggressive steps have begun to change the balance in the artificial intelligence market, where OpenAI has been leading for a long time. Gemini appears to have more than tripled its share of productive AI web traffic in a short time, from 5.4% to 18.2%, and this momentum marks a significant break in the market.
Gemini closes the gapWith the impact of this development, the share of ChatGPT, which previously had an overwhelming superiority in the sector, decreased significantly; The dominance, which was 87.2% in previous periods, has now decreased to approximately 68%. Sensor Tower’s data shows that Gemini strengthened its user base, growing the number of monthly active users by over 30% to 346 million in the August–November 2025 period. In the similar period, ChatGPT’s user growth remained around 6%, and this gap gradually widened.
Google’s success secretThe reason for this rise lies in the fact that artificial intelligence is based on integration into ecosystems with billions of users such as Android, Chrome and Google Workspace, rather than making it available as a standalone tool. Especially Nano BananaThe introduction of visual production models and the default presence of Gemini 3 Flash in the search engine strengthened this momentum.
While this sharp decline in market share raised awareness for OpenAI, it reinforced the need for rapid action, which was described as an “emergency” within the company. Accordingly, GPT-5.2, which was originally planned to be commissioned at a later date, is in response to the Gemini 3 move. 11 DecemberIt was decided to make it available early. With the new model, OpenAI aims to regain lost ground, especially in coding, mathematics and long-context reasoning.
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