Observed Signal · Jan 7, 2026 · Research Report · Source: Trending Topics · Impact: 3/5 · Sentiment: Neutral
ChatGPT Loses 20 Points to Gemini; Grok Overtakes Perplexity
Based on SimilarWeb's Global AI Tracker, ChatGPT's web traffic market share fell from 86.7% to 64.5% in 12 months, while Google's Gemini nearly quadrupled to 21.5%. In the middle tier, xAI's Grok grew to 3.4%, surpassing Perplexity at 2.0%. Claude held steady around 2.0%, and Microsoft's Copilot declined to 1.1%. The analysis covers only web traffic, excluding native app usage.
High relevance to the AI industry, showing significant shifts in competitive market share among major AI assistants; impacts AI adoption and potentially AI-driven adtech applications.
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Key Takeaways & Evidence Grounding
- ChatGPT's market share dropped by over 22 percentage points from 86.7% to 64.5% within a year.
- Google Gemini's market share grew from 5.7% to 21.5% in the same period.
- xAI's Grok grew from 0% to 3.4%, overtaking Perplexity (2.0%).
- DeepSeek holds a 3.7% market share, slightly ahead of Grok.
- The SimilarWeb tracker covers only web traffic, not native app usage.
Connected Companies & Entities
8 Entities mapped“Perplexity, der auf Suche spezialisierte KI-Dienst, zeigt hingegen eine stagnierende Entwicklung....”
“Der bemerkenswerteste Gewinner der vergangenen zwölf Monate ist zweifellos Google mit seinem KI-Assistenten Gemini....”
“ChatGPT von OpenAI bleibt zwar mit 64,5 Prozent unangefochten Marktführer......”
“Das zeigt der neue Global AI Tracker von SimilarWeb....”
“Claude von Anthropic und Microsofts Copilot verharren weitgehend stabil auf ihren Positionen....”
“Claude von Anthropic und Microsofts Copilot verharren weitgehend stabil auf ihren Positionen....”
“Mit 3,4 Prozent rangiert Grok mittlerweile nahezu gleichauf mit DeepSeek (3,7 Prozent), dem chinesischen KI-Anbieter......”
Ontology Mapping & Concepts
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