Future AI Pulse

Top Open Source AI Models Dominating October 2025 Leaderboard

The latest open model rankings for October 2025 reveal a highly competitive race among the world’s top-performing large language models. New contenders have entered the leaderboard, showing how fast open-source AI is evolving across research labs and companies.

At the top of the list is GLM-4.6, developed by Zai and MIT, leading with an Arena Score of 1422. It’s followed closely by DeepSeek-V3.2-Exp-Thinking, another MIT-backed model, scoring 1419, and Qwen-3-235b-A22B-Instruct from Alibaba, with 1418.

The competition among these models highlights the growing sophistication of open architectures, many of which now rival or surpass closed-source alternatives in reasoning, language generation, and instruction following.

Rounding out the top ten are several notable names:

Kimi-K2-0905-Preview from Moonshot Longcat-flash-chat from Meituan MiniMax-M1 from MiniMax Gemma-3-27b-it from Google Mistral-Small-2506 from Mistral Command-A-03-2025 from Cohere gpt-oss-120b from OpenAI

The close margin of performance among these models — with scores separated by less than 80 points — underscores how quickly the open-source ecosystem is advancing. Many of these models are built on permissive licenses like Apache 2.0, enabling developers to fine-tune and deploy them freely.

As open AI development accelerates, research groups and startups are proving that community-driven innovation can compete head-to-head with corporate AI giants. This month’s leaderboard is a reminder that the future of AI is increasingly being built in the open.


Discover more from Future AI Pulse

Subscribe to get the latest posts sent to your email.


Discover more from Future AI Pulse

Subscribe now to keep reading and get access to the full archive.

Continue reading

Discover more from Future AI Pulse

Subscribe now to keep reading and get access to the full archive.

Continue reading