LiteLLM, Aurora, and Portkey are the three most-discussed AI gateways in 2026 — but they serve fundamentally different use cases. LiteLLM is the open-source default with the broadest provider coverage. Portkey is the enterprise control plane with guardrails and observability. Aurora is the performance-optimized Go-native gateway built for teams that need sub-millisecond overhead at production scale.
This guide compares them across seven dimensions: deployment model, performance, provider coverage, governance, pricing, latency, and best-fit scenarios. If you are evaluating gateways for a new project or considering a migration, this comparison will help you identify the right fit.
Deployment Model
LiteLLM Aurora Portkey
Deployment Self-hosted Self-hosted Cloud + self-hosted
Runtime Python (Flask) Go (Native) TypeScript (Node.js)
Setup Time 15-30 min Under 30 sec 5-10 min (cloud: instant)
Dependencies Python 3.9+, Go binary, Node 18+,
pip, PostgreSQL zero deps npm or managed cloud
Startup 8-12 sec 3-5 ms ~2 sec (Node.js startup)
Config Format YAML + env vars YAML + env vars JSON + environment
CLI litellm CLI aurora binary npx portkeyAurora ships as a single Go binary with zero runtime dependencies — no Python interpreter, no pip packages, no virtualenv. This makes it the fastest to deploy in containerized environments and the most resource-efficient at idle.
Performance
Performance differences stem from runtime architecture. In our controlled seven-gateway benchmark on identical hardware:
Gateway Requests Throughput Success P50 P99 Aurora 299,182 4,986/s 100.00% 17.7ms 47.2ms Portkey 58,651 978/s 99.40% 243.0ms 480.6ms LiteLLM 6,992 117/s 56.74% 1.6s 24.2s
Aurora delivers 42x the throughput of LiteLLM and 5x the throughput of Portkey under identical load. LiteLLM's Python GIL limits concurrent request handling, while Portkey's Node.js middleware stack introduces allocation overhead that compounds under sustained pressure. Aurora's Go goroutine scheduler maintains stable latency across all percentiles.
Provider Coverage
LiteLLM leads with 100+ provider integrations, including niche and emerging model providers. Aurora supports 32+ native providers and can route to any OpenAI-compatible endpoint. Portkey supports 1,600+ models through its provider catalog but relies on provider adapters rather than native protocol support.
If your team uses less common providers like AI21, Cohere, or Replicate, LiteLLM likely has a direct integration. For standard providers (OpenAI, Anthropic, Gemini, Bedrock, Azure), all three gateways offer first-class support.
Governance and Security
Portkey has the strongest governance tooling — 50+ guardrails, PII detection, jailbreak protection, prompt versioning, and RBAC — all built into the gateway layer. LiteLLM offers basic virtual keys and budget controls in OSS, with SSO and RBAC behind its enterprise license. Aurora offers built-in PII scrubbing, rate limiting, managed API keys with usage tracking, and audit logs in the open-source distribution, with advanced budgets, OIDC/RBAC, and compliance controls in Enterprise.
Pricing
LiteLLM Aurora Portkey OSS License MIT Apache 2.0 Apache 2.0 (gateway) Self-Hosted Cost Free + infra Free + infra Free + infra Managed Cloud N/A N/A $49/mo (100K reqs) Enterprise Custom Custom Custom Infra Cost/Mo $200-800 (k8s) $50-150 (VM) $0 (cloud) or infra
LiteLLM's self-hosted infrastructure costs are higher due to Python runtime overhead — production deployments typically need 3-node Kubernetes clusters. Aurora's Go binary runs efficiently on a single VM. Portkey's managed cloud eliminates infrastructure cost but adds per-request pricing.
When to Choose Each
Choose LiteLLM when:
- You need access to 100+ providers including niche models
- Your team has established Python/DevOps infrastructure
- Provider breadth is more important than raw throughput
- You prefer the largest community and most third-party integrations
Choose Aurora when:
- Performance and latency matter at production scale
- You want a single Go binary with zero runtime dependencies
- Self-hosting on minimal infrastructure is a priority
- Sub-millisecond overhead and consistent tail latency are requirements
- You need built-in PII masking, failover, and semantic caching in OSS
Choose Portkey when:
- Managed cloud infrastructure is preferred over self-hosting
- Enterprise guardrails and compliance are primary requirements
- Your team wants observability and prompt management out of the box
- Budget for a commercial product ($49/mo+) is available
Key Takeaways
- LiteLLM remains the best choice for maximum provider breadth and community support.
- Aurora is the performance leader — 42x higher throughput than LiteLLM, 5x higher than Portkey under identical load.
- Portkey offers the most complete governance feature set for regulated industries.
- Deployment model is often the deciding factor: self-hosted (Aurora or LiteLLM) vs managed cloud (Portkey).
- All three gateways are actively maintained — the right choice depends on your team's infrastructure preferences and performance requirements.