Is Anthropic API free? Keys are free and new users get a small test credit, but Claude API calls are prepaid per token. Prices, plan credits, student options.
Is the xAI API free? Keys and the Playground are free, but Grok API calls use prepaid credits. Current xAI API prices, rate limits and how to get started.
What is an LLM API key? A plain English guide to API keys for OpenAI, Claude, Gemini and Grok: how they work, how billing attaches and how to keep one safe.
Compare free OpenAI API alternatives in 2026: Google AI Studio's free Gemini API, Anthropic signup credits, xAI's free Playground, and OpenAI's own free options.
Meta AI vs ChatGPT in October 2026: free in app help vs a standalone GPT-6 workspace, Meta One vs Go/Plus pricing, privacy controls, and who should pick which.
Gemini 4 Argon release date is October 13, 2026. Who can use it in the Gemini app, API, and AI Studio, intro pricing through November 30, and Fairwind access.