AI API Router Directory

Mixlayer is an AI API router and aggregator (mixlayer.com) offering transparent pay-as-you-go pricing for frontier models like GLM-5.3 and Qwen 3.5. It provides a free tier for small models like Qwen 3.5 4B and dedicated GPU hosting (H100/H200) billed by the hour.

No public free-tier information found in the source reference; treat free-tier availability as unverified rather than confirmed absent.

Qwen Cloud / Alibaba Cloud Model Studio is the API and model-marketplace side of Qwen, reachable internationally at qwencloud.com and in mainland China through Bailian at bailian.console.aliyun.com. The international marketplace page states that new users get 70M+ free tokens and advertises full-modality access from $6/month. Chinese-language Model Studio documentation states that activating Bailian for the first time automatically issues a newcomer free quota per model, usually 1,000,000 tokens, valid for 90 days and available only in the Beijing (cn-beijing) region.

Free grants are token allowances, not currency: 70M+ tokens for new users on the international Qwen Cloud marketplace, and typically 1,000,000 tokens per model (90 days, cn-beijing only) on Chinese Model Studio.

Qwen Studio is the consumer web app and desktop/mobile client for the Qwen model family, served at qwen.ai and app.chat.qwen.ai. The official product page states that Qwen Studio is free to use and open to all, and the same page lists Thinking, Search, Deep Research, Web Dev, Artifacts, Image Generation, Image Edit and Video Generation as product features. No paid consumer subscription and no numeric usage caps are published on the official pages fetched.

No numeric free allowance is published on official pages (checked 2026-09-16); qwen.ai states only that Qwen Studio is free to use and open to all.