Per-model, not global
Routing is driven by each request’s model id. Keep the main session on
Claude and divert only the models you name — down to a single subagent —
with no prompt fingerprinting.
shunt
Shunt Claude Code to any model. A transparent gateway that diverts only the models you map to another provider — everything else passes through to Anthropic unchanged.
Spec-compliant gateway
Implements the official Claude Code LLM gateway
protocol:
/v1/messages, /v1/models discovery, token counting, and attribution
pass-through.
OpenAI & ChatGPT/Codex
Translates Anthropic Messages ⇄ the OpenAI Responses API — over an OpenAI
API key, or a reused ChatGPT subscription via codex login.
Any Anthropic-compatible backend
Kimi, DeepSeek, GLM, MiniMax, OpenRouter, Vercel AI Gateway and friends are
one [providers.<name>] table away — no code changes.