Anthropic builds an extension, OpenAI builds its own browser, Google welds AI directly into Chrome — three completely different approaches. Here's a comparison of the current landscape, key differences, and a selection guide.
For side projects, toy demos, and RAG prototypes, nobody wants to swipe a credit card on day one. This is a verified roundup of 40+ LLM inference providers still operating as of 2026/05, tiered by whether free resources auto-replenish or are one-time grants. Each entry notes credit-card requirements, supported models, paid starting prices, and catches. Chinese-origin providers including Zhipu GLM (permanently free), Doubao (2M tokens/day), Kimi, DashScope, and the Ollama local option are all included.
Gemini CLI is Google's open-source terminal AI agent (Apache 2.0). ⚠️ Announced end-of-service on 2026/06/18 — official migration path is Antigravity CLI. Free accounts get 60 requests/minute and 1,000 requests/day; Skills, Hooks, and Subagents all carry over.
OpenClaw supports 35+ model providers. The minimum requirement is that the model supports tool use + streaming. It has built-in auth rotation and model failover mechanisms.