AI Model Popularity Index
Updated September 1, 2026

Which AI models are the most popular in July 2026?

Monthly rankings of the most-used AI language models, commercial and open source. Data sourced from HuggingFace, web reports, and real-time research. Updated automatically every month.

As of July 2026, the consumer AI assistant market was dominated by ChatGPT and Gemini, both reporting massive user bases and continuing to grow quickly. Claude, Grok, Perplexity, and Mistral were visible in public usage discussions, but the gathered July 2026 sources did not provide equally solid user-count data for them.

Commercial models

Usage estimates based on public reports and web research (Perplexity).

1
ChatGPT (GPT-4o / GPT-4.1 family)OpenAI Rising

OpenAI said ChatGPT reached about 1 billion weekly active users in July 2026, per coverage dated July 29, 2026.

1B+

2
Gemini 2.5 Pro / Gemini 2.0 FlashGoogle Rising

Google said the Gemini app had 950 million monthly users on July 22, 2026.

950M+

3
Claude 4 / Claude 3.7 SonnetAnthropic Rising

A July 2026 report cited ClaudeBot reaching 16.28% of AI-bot traffic in full-month July 2026.

N/A

4
Grok-3xAI Rising

No reliable public July 2026 user count was found in the gathered sources for Grok.

N/A

5
Perplexity SonarPerplexity Rising

No reliable public July 2026 user count was found in the gathered sources for Perplexity Sonar.

N/A

6
Mistral LargeMistral AI Stable

No reliable public July 2026 user count was found in the gathered sources for Mistral Large.

N/A

Open source models

Ranked by total downloads on HuggingFace, a strong proxy for developer and researcher adoption.

Sources

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