Lmring

LMRing is a web platform for comparing AI models side by side. A user picks up to four models from more than 50 providers, enters a single prompt, and watches the responses stream in at the same time in one interface, then evaluates the results to decide which model suits the job. The provider list covers OpenAI, Anthropic, Google, Meta, Mistral, Cohere, Groq, Azure, AWS, Alibaba, Baidu, Tencent, DeepSeek and Hugging Face, among others. Users bring their own API keys, which the site presents as the way to keep control and privacy. Custom OpenAI compatible endpoints and local models can also be added. Conversations can be saved and comparison results shared with a team, and the interface supports English, Chinese, French and other languages. A leaderboard tracks model performance using ELO based rankings, so the platform doubles as a reference for how models stack up against each other in head to head use. LMRing is aimed at developers, prompt engineers and teams choosing between models for a product or workflow. The home page offers a Get Started Free option, and structured data on the site lists a price of zero dollars. No paid plans or pricing page are published.