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ChatGPT's market share slips below 50% for first time
Summary
The chatbot still remains the most popular AI assistant worldwide with over 1.1 billion monthly users, followed by Gemini with 662 million and Claude with 245 m
Why It Matters
Signals increasing investor interest and capital allocation in AI startups.
Referenced Coverage & Sources
ChatGPT's market share slips below 50% for first time
TechCrunch AI•Jun 16, 2026
Z.ai's open-weights GLM-5.2 beats GPT-5.5 on multiple long-horizon coding benchmarks for 1/6th the cost
VentureBeat•Jun 16, 2026
Incumbent Advantage: Brand Bias and Cognitive Manipulation Dynamics in LLM Recommendation Systems
arXiv AI•Jun 17, 2026
Dissecting model behavior through agent trajectories
arXiv AI•Jun 17, 2026
Anthropic "pauses" token-based billing for its Claude Agent SDK
Ars Technica•Jun 16, 2026
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