Save money on AI using those permanent free LLM APIs

Those LLM APIs offer permanent free tiers for text inference (no trial or initial credits, permanent tier only). Contents Provider APIs Inference providers Provider APIs APIs run by the companies that train or fine-tune the models themselves. Cohere 🇺🇸 - Command A, Command R+, Aya Expanse 32B +9 more. 20 RPM, 1K/mo. Google Gemini 🇺🇸 - Gemini 2.5 Pro, Flash, Flash-Lite +4 more. 5-15 RPM, 100-1K RPD. Mistral AI 🇪🇺 - Mistral Large 3, Small 3.1, Ministral 8B +3 more. 1 req/s, 1B tok/mo. Zhipu AI 🇨🇳 - GLM-4.7-Flash, GLM-4.5-Flash, GLM-4.6V-Flash. Limits undocumented. Inference providers Third-party platforms that host open-weight models from various sources. Cerebras 🇺🇸 - Llama 3.3 70B, Qwen3 235B, GPT-OSS-120B +3 more. 30 RPM, 14,400 RPD. Cloudflare Workers AI 🇺🇸 - Llama 3.3 70B, Qwen QwQ 32B +47 more. 10K neurons/day. GitHub Models 🇺🇸 - GPT-4o, Llama 3.3 70B, DeepSeek-R1 +more. 10-15 RPM, 50-150 RPD. Groq 🇺🇸 - Llama 3.3 70B, Llama 4 Scout, Kimi K2 +17 more. 30 RPM, 1K RPD (14,400 for Llam