Not sure if anyone mentioned this here, but i didn't find an

A free API catalog with over 100 models. No credit card required.

Popular models:

• DeepSeek-R1 (reasoning),
• Llama 3.1 70B (solid default),
• Qwen 3.5 (coding).

Worth noting:

• GLM-5.1 — Agentic workflows and long-horizon reasoning.
• MiniMax M2.7 — 230B MoE specializing in coding and reasoning.
• Kimi K2.5 — 200K token context for document processing.
• BioNeMo — Protein folding.
• FourCastNet — Weather forecasting.

Rate limit is 40 RPM.