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ChatGPT regains web traffic share as Gemini slips to 25%

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ChatGPT's share of gen AI website traffic rose from 53.7% in April 2026 to 56.4% in September 2026, according to Similarweb data cited by Testing Catalog. Gemini fell from 26.7% to 25.0% over the same period, while Claude held at about 9.6%. The post argues Anthropic could shift the chart if it targets general consumers as it does developers.

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ChatGPT vs Gemini πŸ‘€

ChatGPT seems to be on a steady growth again for the past 4 months in terms of web traffic share.

ChatGPT went up from 53% to 56% while it is no near 71% it had a year ago.

Gemini went down only from 26% to 25%; Earlier growth last year was a result of Gemini 3 success in particular.

Claude is definitely a sleeping beast over here. If Anthropic will start looking at general consumers as they do at developers, this chart would change quite quickly.

I also feel like average LTV for these users is quite high and majority of people can react to the dynamic of AI progress.

Will we see another big change on this chart any time soon?

Similarweb@Similarweb
Gen AI website traffic share update - September 2026 πŸ—“οΈ 12 months ago (October 2025): ChatGPT: 71.8% Gemini: 13.6% DeepSeek: 4.1% Grok: 2.8% Perplexity: 2.5% Claude: 2.3% Copilot: 2.0% πŸ—“οΈ 6 months ago (April 2026): ChatGPT: 53.7% Gemini: 26.7% Claude: 8.0% DeepSeek: 4.0% Grok: 3.2% Copilot: 2.0% Perplexity: 1.5% πŸ—“οΈ 3 months ago (July 2026): ChatGPT: 54.3% Gemini: 26.6% Claude: 9.6% DeepSeek: 3.4% Grok: 2.5% Copilot: 1.7% Perplexity: 1.0% πŸ—“οΈ 2 months ago (August 2026): ChatGPT: 55.6% Gemini: 25.6% Claude: 9.3% DeepSeek: 3.5% Grok: 2.5% Copilot: 1.6% Perplexity: 0.9% πŸ—“οΈ 1 month ago (September 2026): ChatGPT: 56.4% Gemini: 25.0% Claude: 9.6% DeepSeek: 3.4% Grok: 2.3% Copilot: 1.5% Perplexity: 0.9%
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Source: 🚨 AI News | TestingCatalog · x.comPublished · added here