LLM APIs · 8 alternatives ranked of 23 in the category
Looking for alternatives to Z.ai GLM 5.2 on OpenRouter? These are the llm apis tools that score highest on adoption, reviews, benchmarks, and public code, with what separates each one from Z.ai GLM 5.2 on OpenRouter.
Ranked by adoption, review, benchmark, and repository signals. Each note below is drawn from the two products’ own catalog records, so a product with nothing to separate it from Z.ai GLM 5.2 on OpenRouter carries no note.
Claude Code Router can be tried on a open source plan before you commit budget and carries 37k GitHub stars to Z.ai GLM 5.2 on OpenRouter's 6.4k.
Cloudflare AI Gateway is not listed as open source, while Z.ai GLM 5.2 on OpenRouter is and can be tried on a freemium plan before you commit budget.
LLMRouter can be tried on a open source plan before you commit budget.
NVIDIA NIM LLM APIs is not listed as open source, while Z.ai GLM 5.2 on OpenRouter is and can be tried on a freemium plan before you commit budget.
Cerebras Inference is not listed as open source, while Z.ai GLM 5.2 on OpenRouter is.
Claude Code Router ranks highest among the alternatives to Z.ai GLM 5.2 on OpenRouter we track. Claude Code Router can be tried on a open source plan before you commit budget and carries 37k GitHub stars to Z.ai GLM 5.2 on OpenRouter's 6.4k. Open-source router for Claude Code that lets builders route coding-agent requests across OpenAI-compatible model providers and custom backends.
Claude Code Router (open source), Cloudflare AI Gateway (freemium), LLMRouter (open source), NVIDIA NIM LLM APIs (freemium), fal (freemium), Millwright (open source), and Auriko (freemium) offer a no-cost entry point, where Z.ai GLM 5.2 on OpenRouter is paid.
fal can be tried on a freemium plan before you commit budget.
Millwright can be tried on a open source plan before you commit budget.
Auriko is not listed as open source, while Z.ai GLM 5.2 on OpenRouter is and can be tried on a freemium plan before you commit budget.