Routeplane vs LiteLLM
LiteLLM is the popular open-source Python proxy and SDK. Routeplane is a purpose-built Rust data plane with sovereignty and guardrails on the hot path.
LiteLLM is excellent at what it set out to do: a broad, open-source, Python-based unifier that maps 100+ models onto the OpenAI shape, with routing, fallback, and a proxy server. It’s a developer favourite for breadth and hackability.
Where teams outgrow it is the operational edge: a Python proxy carries garbage-collected tail latency, governance is something you assemble, and there’s no notion of classifying regulated data per request and hard-locking it to an in-region provider. Routeplane is built for exactly that regulated, high-throughput edge, in Rust, with deterministic guardrails and sovereign routing as first-class request stages.
Feature-by-feature
| Capability | routeplane | LiteLLM |
|---|---|---|
| OpenAI-compatible API | ✓ | ✓ |
| Open source / self-host | ◐ self-host | ✓ |
| Integration / model breadth | ◐ growing | ✓ 100+ |
| Per-request regulated-data classification | ✓ | ✗ |
| Region-locked routing enforced per request | ✓ | ✗ |
| Deterministic PII / secret redaction on hot path | ✓ | ◐ via callbacks |
| Prompt-injection detection | ✓ | ◐ |
| Engine language / tail latency | ✓ Rust, no-GC | ◐ Python (GC) |
| Multi-currency FinOps & chargeback | ✓ | ✗ |
| Tamper-evident audit trail | ◐ hash-chain (roadmap) | ◐ logs |
Which should you choose?
Choose routeplane when
- You operate under a data-residency mandate and need per-request enforcement, not a deployment region.
- Predictable p99 latency under load matters, a no-GC Rust data plane versus a Python proxy.
- You want PII/secret redaction and injection detection built into the request path, deterministically.
- You need spend attributed by team, project, and currency for finance, not just token totals.
Choose LiteLLM when
- You want a fully open-source, Python-native proxy you can fork and extend today.
- Breadth of model coverage out of the box is your top priority.
- You’re comfortable assembling guardrails, residency, and cost attribution yourself.
Migrating to routeplane
If you already front your apps with LiteLLM’s OpenAI-compatible proxy, switching is a base-URL change. Keep your SDKs; gain per-request residency, inline guardrails, and currency-aware cost attribution.
Frequently asked questions
Is Routeplane open source like LiteLLM?
Routeplane can be self-hosted from a single container image, and a managed tier is available. LiteLLM is fully open-source and Python-native; if a forkable Python codebase is a hard requirement, LiteLLM fits that better today.
Why Rust instead of Python?
A garbage-collected runtime introduces unpredictable pauses under load. Routeplane’s data plane is Rust (Axum/Tokio) with lock-free hot-path structures, targeting sub-5 ms added p99 overhead and no GC tails, which matters at the regulated, high-throughput edge.
Can LiteLLM enforce data residency per request?
Not as a built-in capability, you can pin deployments to a region, but per-request classification of regulated data and hard region-locked routing is the gap Routeplane is built to fill.
See the residency header come back true.
Point your existing OpenAI-compatible client at routeplane and route your first sovereign request this week.