Best Free OpenRouter Models for AI Coding Agents in 2026
The best free OpenRouter model for AI coding agents in 2026 is Qwen3-Coder ( qwen/qwen3-coder:free ), a 1-million-token coding model from Alibaba's Qwen team that costs nothing and handles the read-edit-run tool loop that coding agents depend on. OpenRouter hosts 23 genuinely free models as of July 2026 — their IDs all end in :free — and every one of them is capped at 20 requests per minute and 50 requests per day, rising to 1,000 requests per day after a one-time $10 credit purchase.