The Immers Foundation Models catalog offers public endpoints for testing open-source models at no cost:

The Immers Foundation Models catalog offers public endpoints for testing open-source models at no cost: • GLM-5.2 • Unlimited-OCR • gemma-4-26B-A4B-it • Qwen3.5-35B-A3B • and other models Requests can be sent via chat or directly through the API — no token fees are charged. This makes it possible to evaluate model response quality, tool-calling accuracy, and build prototypes for your projects before deploying a private instance. For private endpoints, Foundation Models provides ready-made configurations for deploying a much wider range of models on dedicated GPU servers in Russia. With private endpoints, you pay only for the virtual machine uptime, not for the volume of generated tokens. This is a good fit for developers, researchers, and product teams that value predictable costs and control over their stack. → Try the public endpoints