Start here: what CoreBeam is, how to connect Claude Code / Codex / OpenCode / Pi, what it costs

CoreBeam is an LLM gateway, an alternative to OpenRouter, with one API key and no markup.

OpenRouter charges 5.5% on every credit purchase, before you send a token. We charge nothing. What makes that possible: we buy inference up front and negotiate a discount from the inference provider, then serve you at the original price. The discount is the entire margin. It is thin, and it is the whole business model — there is nothing else in it, which is why there is nothing hidden in it.

Until 31 October, use the coupon code LAUNCH10 to get 10% off any topup of your credits.

What you get

• Anything that speaks the OpenAI or Anthropic API connects by changing the base URL. Claude Code, Codex, Cursor, Cline, the SDKs.
• 0 markup, while OpenRouter charges you 5.5% extra.
• The model you name is the model that answers. Where several providers serve it, routing picks the cheapest one that is fast and stable enough. It never substitutes a different model.

Check https://corebeam.ai/docs to integrate with your AI coding agent or workflow. Or, simply give the link to your agent and ask it to set it up for you.