Tools that don't work yet
Tools that can't point at a custom OpenAI- or Anthropic-compatible base URL today, and what to use instead.
Flux works by pointing a tool at a custom base URL, so any tool that hard-codes its provider or blocks custom endpoints can't route through Flux yet. Here is where each of those tools stands, and what to use instead.
Gemini CLI
Gemini CLI speaks only Google's Gemini wire format, not the OpenAI or Anthropic shape, so there is no base URL to redirect. No workaround today.
Antigravity
Antigravity provides no setting to override the model provider's base URL. No workaround today.
Amp
Amp has no documented base-URL override and is gated to Enterprise. No workaround today.
Cody
Cody's custom model endpoints are available only on the Enterprise self-hosted tier, not the standard product. No workaround on the standard product.
Partial support
These two tools route through Flux with caveats worth knowing.
Windsurf lets you supply your own Anthropic key, so you can point its Anthropic option at https://api.fluxrouter.ai/anthropic on a best-effort basis. For full Flux routing inside Windsurf, install Cline or Roo Code as an extension and configure those against Flux instead.
Void works against an OpenAI-compatible base URL, but the project is currently paused, so treat support as experimental.
For tools that do work, see the Connect your tools overview.