Which AI models are the most
popular in April 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.
“In April 2026, OpenAI's GPT-5.2 variants maintain dominance via ChatGPT's massive user base, while Google Gemini 3.1 Pro and Anthropic's Claude 4.6 Opus lead benchmarks and gain traction in enterprise use. Open-source models like Meta's Llama 4 are rising rapidly for custom deployments, intensifying competition across multimodal and long-context tasks.”
Commercial models
Usage estimates based on public reports and web research (Perplexity Sonar).
Powers ChatGPT with over 5.5 billion monthly visitors from organic search in February 2026 (Exploding Topics)[1]
400M+
Ranks #1 on overall benchmarks with 1452 score and leads in general chat (Pluralsight)[2]
200M+
Top contender on ChatOn Arena leaderboard for text tasks in 2026 (CustomGPT.ai)[5]
100M+
Released April 5, 2025 as largest open-source model with 400B parameters (Exploding Topics)[1]
50M+
Offers state-of-the-art performance with 2 million token context window (Zapier)[4]
80M+
Established multimodal standard but superseded by newer GPT-5.x models (Whistler Billboards)[3]
300M+
Leads benchmarks with 1452 score and 1M token context as of 2026 (Pluralsight)[2]
150M+
Wins agentic coding benchmarks with 1448 score (Pluralsight)[2]
70M+
Open source models
Ranked by total downloads on HuggingFace — a strong proxy for developer and researcher adoption.
Qwen/Qwen2.5-7B-Instruct
Qwen/Qwen2.5-1.5B-Instruct
meta-llama/Llama-3.1-8B-Instruct
Qwen/Qwen3-8B
Qwen/Qwen3-1.7B
Qwen/Qwen3-4B-Instruct-2507
openai/gpt-oss-20b
Qwen/Qwen2.5-32B-Instruct
Sources
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