Agent Router Enterprise · LiteLLM Alternative

The enterprise LiteLLM alternative, proven at production scale.

LiteLLM's Python proxy bottlenecks as your agents grow. Agent Router routes LLM and MCP traffic on the Envoy proxy your platform team already trusts, with consistent throughput, a deterministic memory profile, and budgets enforced before execution.
  • Consistent latency past a few hundred RPS, where LiteLLM has degraded from 200 ms to over 12 seconds under load.
  • A deterministic memory profile on Envoy, with fewer forced restarts, OOM events, and performance drift.
  • Budgets enforced before execution, with atomic token reservations you can trust under concurrency.

Why production teams switch

Built on Envoy and Go By the Envoy AI Gateway team Proven in regulated industries

Facing these questions?

If this sounds like your gateway, you've outgrown LiteLLM.

01

Are you seeing latency spikes above a few hundred RPS?

Documented LiteLLM deployments degraded from 200 ms to over 12 seconds under load, and adding more instances did not resolve it.

02

Do you have to restart your gateway regularly?

Memory cap-outs and OOM events force restarts that interrupt production agent traffic and erode trust in the platform.

03

Are your rate limits reliable under concurrency?

Token miscounting means the budgets and limits you set cannot be trusted once requests start overlapping.

04

Is logging slowing the request path?

Synchronous logging and live database lookups on the critical path add latency to every single call.

If yes, then you need an enterprise-grade gateway.

Agent Router Enterprise vs. LiteLLM

An enterprise gateway, not a retrofitted OSS project.

LiteLLM is a Python library and proxy optimized for developer experimentation. Agent Router Enterprise is built for the teams running those agents in production.

Technology expertise

Built on Envoy and Go, the same distributed-systems stack powering production infrastructure at scale. Designed for enterprise delivery, not prototyping.

LiteLLM: a Python library and proxy optimized for developer experimentation, best suited for prototyping rather than production at scale.

Enterprise admin focus

A dedicated admin experience, immutable audit logs for EU AI Act compliance, and governance controls designed for regulated industries.

LiteLLM: a community-driven roadmap with developer-first admin UX. Enterprise governance requires significant custom configuration.

MCP maturity

A production-ready MCP Gateway with a curated server catalog, MCP Profiles, OAuth and API-key auth, and unified observability. Available today.

LiteLLM: MCP support is experimental, and not recommended where teams need stable, auditable tool access in production.

Production readiness

A track record operating critical infrastructure in regulated industries: CVE remediation, compliance audits, and SEV0 incident response.

LiteLLM: a self-hosted Python proxy with no enterprise SLAs and limited validation for regulated environments.

Under load

Proven past the point LiteLLM breaks.

  • LiteLLM bottlenecks beyond roughly 300 RPS. Agent Router sustains far higher throughput with consistent performance.
  • Documented LiteLLM latency climbed from 200 ms to over 12 seconds, and adding instances did not help.
  • A deterministic memory profile over long-lived deployments means fewer OOM restarts and less drift.
  • Built on the Envoy proxy, proven at high throughput in production environments.

Technical differentiation

Where LiteLLM breaks, and what an enterprise gateway does instead.

The same Envoy foundation that handles production traffic at scale changes how the gateway behaves under real load.

Accurate controls

  • Limits and budgets enforced before execution, not flagged after the bill
  • Token reservations happen atomically, even under heavy concurrency
  • Controls you can trust where LiteLLM miscounts tokens
  • Immutable audit logs for EU AI Act compliance

Runtime stability

  • A deterministic memory profile on Envoy, not Python memory cap-outs
  • Fewer forced restarts, OOM events, and performance drift over time
  • Logging stays off the critical path, written asynchronously
  • Policies and pricing cached in memory, so requests never wait on the database

Lean request path

  • Near-zero added latency, versus 30 to 40 ms with LiteLLM
  • Multi-step agent workflows stay fast and responsive
  • Consistent high RPS where LiteLLM bottlenecks above 300
  • Built on the same Envoy stack that powers production infra at scale

The path to production

Move off LiteLLM without re-architecting your agents.

Route through Agent Router.

Send your LLM and MCP traffic through one Envoy-based gateway, self-hosted in the environment your platform team already operates.

Hold throughput under load.

Get consistent latency and a deterministic memory profile where LiteLLM bottlenecks, with logging kept off the critical path.

Govern and scale.

Immutable audit logs, MCP Profiles, budgets enforced inline, and unified observability. Enterprise-ready from day one.

Ready to move beyond LiteLLM limitations?

Validate supervised agent operations, governance, and cost controls, or work with Tetrate engineers to design safe agent operations on your own traffic.

Built on Envoy, proven at scale Self-hosted, enterprise-grade Proven in regulated industries
Book a demo → Talk to an engineer