Interactive LLM Cost Calculator
Want to calculate your exact parameters and operational expenses? Run the calculations locally inside your browser.
Launch LLM Cost Calculator1. Google Gemini Developer API (Free Tier)
Google's Gemini API offers a generous free tier via Google AI Studio, providing access to Gemini 1.5 Flash and Pro with rate limits of 15 requests per minute, sufficient for development and prototyping.
2. Groq Cloud Serverless Endpoints
Groq offers free serverless access to open weights models (like Llama 3 and Gemma 2) at high speeds, using rate-limited API keys to help developers test integrations.
3. OpenRouter Free Models Catalog
OpenRouter aggregates APIs and hosts a collection of free models (such as Llama 3 8B and Phi-3), letting developers call endpoints using standard OpenAI-compatible API packages.
Frequently Asked Questions
Is there a truly free AI API?
Yes. Google AI Studio and Groq Cloud offer free tiers with reasonable rate limits, letting you run development workloads without entering a credit card.
What is the catch with free APIs?
Free endpoints have strict rate limits (Requests Per Minute) and do not guarantee uptime, making them unsuitable for production traffic.