ChatGPT conserva la punta, pero la competencia en asistentes de inteligencia artificial se acorta

A unos 2.500 kilómetros de El Calafate, entre el hielo patagónico y elractor de las velocidades de internet, ChatGPT sigue siendo el asistente de inteligencia artificial más consultado desde un navegador web, aunque su Advantage relative se redujo en los últimos meses. Según un relevamiento de Similarweb, la plataforma de OpenAI retuvo el 56,4 por ciento del tráfico mundial dirigido a chatbots en septiembre de 2026, frente al 71,8 por ciento registrado un año antes. En otras palabras, perdió 15 puntos de cuota relativa, no por una caída en la cantidad de visitas, sino porque sus competidores Growing mucho más rápido.

Las visitas web mensuales a ChatGPT pasaron de 5.700 millones en enero de 2026 a 5.900 millones en septiembre, de modo que el servicio Strength en registros absolutos mientras su peso sobre el total se contrajo. El dato un cambio en el comportamiento de los usuarios: la demanda por asistentes de inteligencia artificial aumentó y se repartió entre más alternativas. El leader ya no opera con la misma holgura y la competencia se volvió másOE cerca.

Gemini ganó terreno por la vía de Google

El avance más fuerte entre los grandes services came from Gemini. It went from 1.100 million monthly visits in October 2025 to 2.600 million in September 2026, while its share rose from 13,6 percent to 25 percent. Similarweb linked that jump to the release of Gemini 3 at the end of 2025 and to the distribution of the product across Google's ecosystem. The mobile app exceeded 750 million monthly active users, a figure that is not directly comparable with web traffic but shows the weight of its mobile presence.

Claude, meanwhile, posted the most striking variation. Its visits multiplied by six, from 157 million to 1.000 million, and its share rose from 2,3 percent to 9,6 percent. That allowed it to move from fifth to third place, ahead of DeepSeek, Grok, Copilot and Perplexity combined. Growth accelerated in early 2026, after advertising campaigns during the Super Bowl in February and the positioning of Claude as a chatbot without advertising.

• ChatGPT: 5.900 millones de visitas web mensuales y 56,4 por ciento de cuota en septiembre de 2026.
• Gemini: 2.600 millones de visitas y 25 por ciento de cuota.
• Claude: 1.000 millones de visitas y 9,6 por ciento de cuota.
• DeepSeek: 356 millones de visitas y 3,4 por ciento de cuota.
• Grok: 2,3 por ciento de cuota.
• Copilot: 1,5 por ciento de cuota.
• Perplexity: 0,9 por ciento de cuota.

Behind the three leaders, the combined share of DeepSeek, Grok, Copilot and Perplexity fell from 11,4 percent a year earlier to 8,1 percent in September 2026. The three leading services therefore concentrated more than 90 percent of measured web traffic toward artificial intelligence assistants, according to the material. The competition is intense at the top, but it is also narrowing: Claude advanced on the pack of smaller rivals, while Gemini gained substantial ground on ChatGPT.

The measurement has a limitation that changes the reading

Similarweb counts only accesses made from a web browser to each chatbot's page. It excludes mobile app use, application programming interfaces and integrations embedded in other products. That method underestimates services that operate inside software ecosystems. Copilot is the clearest case, because it works natively within Windows and Office, while Claude and DeepSeek are widely used in programming tools and open-source code versions that function outside their official sites.

Por eso, en el trabajo cotidiano y también en el uso personal, conviene mirar estas cifras as a photo of web traffic and not as a complete ranking of all uses. A user may access an assistant through an app, integrate it into a development environment or find it operating inside another service without ever visiting its website. The fact that ChatGPT remains first in the measured segment is solid; the distance between the alternatives in real use is harder to establish.

A lo lejos, el clima y el hielo del sur_logo remain a reliable reference in a changing landscape, and the movement of these platforms shows a similar acceleration. ChatGPT keeps the lead, but Gemini and Claude have made the market considerably more competitive. For those who use these assistants professionally, the practical recommendation is to keep more than one at hand and compare their results according to the task at hand, especially when the answer depends on the tool used.