OpenRouter offers $1 worth of free usage with many free models available.
Groq provides high rate limits for daily usage and hosts all Llama 3.1 and 3.2 models.
get API key: https://console.groq.com/keys
available model names:
Gemini has very generous rate limits for the gemini-1.5-flash model, but they also offer some smarter models and faster models.
get API key: https://aistudio.google.com/app/apikey
available model names:
Note: The Gemma models are primarily for experimentation purposes and generally don't perform as well as the Gemini models.
Hyperbolic offers $10 free credit on signup and hosts Qwen 2.5/Qwen 2.5 Coder models among others.