Top 5 LLM Proxy Solutions in 2026
The top five LLM proxy solutions in 2026 are LiteLLM, Portkey, Kong AI Gateway, Cloudflare AI Gateway, and OpenRouter in that order. LiteLLM stays the default self-hosted OpenAI-compatible router after a serious 2026 PyPI incident, Portkey fits managed gateway buyers, Kong suits API estates on Konnect, Cloudflare rewards Workers-centric traffic, and OpenRouter is the fastest multi-model credit path for teams that accept hosted aggregation.
How we ranked
- Routing and provider coverage (28%) scores how many providers and fallbacks you express without bespoke glue, because proxies exist to collapse integration sprawl.
- Security and governance posture (27%) weights supply-chain history, key handling, and policy plugins higher than typical listicles after 2025–2026 incidents.
- Observability and FinOps controls (15%) measures logging, budgets, cache hooks, and dashboards once traffic leaves laptops.
- Cost model and latency overhead (15%) compares hosted fees, cache savings, and hop latency for streaming workloads.
- Community and review sentiment (15%) blends Reddit, G2 Learn, Facebook reshares, and TechCrunch on multi-model stacks from October 2024 through April 2026.
The Top 5
#1LiteLLM8.6/10
Verdict
LiteLLM remains the pragmatic default when you want an OpenAI-compatible surface, a huge provider matrix, and version pins behind your perimeter.
Pros
- Unifies Bedrock, Vertex, Azure, Anthropic, OpenAI, and many others behind one router contract.
- Virtual keys, budgets, and load balancing map cleanly to platform engineering habits.
- Practitioners wire it into agent stacks for multi-model routing, as the 2026 tools map illustrates.
Cons
- The March 2026 PyPI compromise is a material trust dent despite fast remediation posts.
- Self-hosting means you own upgrades, HA, and secrets SaaS gateways absorb.
- Support chatter on Reddit is mixed when releases move quickly.
Best for
Platform teams on Kubernetes or Docker who want maximum routing flexibility without rewriting clients.
Evidence
Maintainers published incident scope and cleanup in their security update. LWN and BleepingComputer give security reviewers independent detail, while Reddit amplified the do-not-upgrade warning quickly.
Links
#2Portkey8.3/10
Verdict
Portkey is the strongest managed option when you want semantic caching, guardrails, and enterprise attestations without operating LiteLLM’s moving parts yourself.
Pros
- Positions a very large model catalog behind one control plane with retries and observability aimed at production.
- Open-sourced its gateway runtime after operating at trillions of tokens daily, which helps teams audit the hop they deploy per The New Stack.
- Internet2 on Facebook signals higher-ed procurement paths.
Cons
- Independent roundups still mention latency and feature gaps worth benchmarking on your prompts.
- Smaller mindshare than hyperscaler bundles, so bake-offs against DIY LiteLLM stay common.
- Log-centric pricing rewards disciplined retention policies.
Best for
Mid-market and enterprise GenAI platform groups that need SOC-style paperwork and dashboards without a dedicated gateway SRE bench.
Evidence
The New Stack ties the open-source gateway drop to real throughput claims. Reddit’s tools map keeps Portkey beside LiteLLM and OpenRouter, underscoring practitioner shortlists.
Links
#3Kong AI Gateway8.0/10
Verdict
Kong AI Gateway fits when API platform teams already live in Kong Konnect and need LLM traffic to inherit the same plugins and lifecycle discipline as the rest of the estate.
Pros
- Kong’s 2025 press narrative adds automated RAG helpers, PII sanitization plugins, and tighter Konnect packaging for AI governance.
- PR Newswire reaches buyers who read IT news digests, not only GitHub watchers.
- TrustRadius reviews of Kong Konnect capture how enterprises experience the control plane AI Gateway plugs into.
Cons
- Value skews to teams already paying for Kong licensing.
- Docs skew API-native versus hand-holding data science notebooks.
- Hyperscaler marketplaces add competitive pressure on incremental hops.
Best for
Regulated enterprises that standardized Kong for north-south API traffic and want LLM calls inside the same policy engine.
Evidence
Kong’s press release covers automated RAG, PII sanitization, and Konnect alignment. Reddit shows proxy demand after rate limits.
Links
#4Cloudflare AI Gateway7.7/10
Verdict
Cloudflare AI Gateway wins when LLM traffic already flows through Workers or when you want edge caching, billing experiments, and DLP hooks without another data-center tier.
Pros
- The August 2025 refresh adds dynamic routing, DLP scanning, broader provider coverage, and unified billing direction that FinOps leads notice.
- Caching docs spell identical-request semantics teams can automate against.
- Secrets Store integration for bring-your-own-key flows reduces plaintext key sprawl versus ad hoc env files.
Cons
- Cache hits require identical prompts today, so semantic deduping still leans on upstream tricks.
- Best economics assume Cloudflare affinity across the rest of the stack.
- Closed-beta billing features complicate finance forecasts.
Best for
Teams on Workers that want observability, caching, and key hygiene beside existing edge traffic.
Evidence
Cloudflare’s August 2025 blog explains routing, DLP, and billing experiments. Caching documentation states identical-request limits that shape savings math.
Links
#5OpenRouter7.4/10
Verdict
OpenRouter is the lowest-friction credit-based aggregator when you want hundreds of models behind one key and accept governance mostly via account controls instead of VPC isolation.
Pros
- One wallet cuts time-to-try for model comparisons, which r/OpenRouter debates in public.
- Catalog breadth supports A/B routing without five vendor contracts on day one.
- OpenRouter on X ships model-drop notes faster than most changelog pages.
Cons
- Hosted-only posture blocks strict data residency unless you add architecture around it.
- Another commercial dependency sits atop underlying model vendors.
- Fewer native enterprise plugins than Kong or Portkey, so policy depth stays thinner.
Best for
Startups and indie hackers optimizing for speed, breadth, and pay-as-you-go credits more than on-prem isolation.
Evidence
Reddit surfaces real FinOps edge cases around free models and credits. G2’s LLM platform buyer guide frames how enterprises evaluate stacks OpenRouter often augments.
Links
Side-by-side comparison
| Criterion | LiteLLM | Portkey | Kong AI Gateway | Cloudflare AI Gateway | OpenRouter |
|---|---|---|---|---|---|
| Routing and provider coverage | Massive OSS matrix, OpenAI-shaped clients | Very large managed catalog plus OSS gateway | Multi-vendor via Kong plugins and AI routes | Hundreds of models via refreshed gateway | Marketplace-scale catalog |
| Security and governance | Strong self-host control, 2026 PyPI scar | Managed attestations and guardrails narrative | PII plugins, Konnect policy inheritance | DLP scanning, Secrets Store BYOK | Mostly account controls, hosted trust |
| Observability and FinOps | Prometheus hooks, spend primitives | Dashboards tuned for GenAI teams | Kong analytics plus AI telemetry | Cloudflare dashboards, cache headers | Usage UI, model-level spend |
| Cost model and latency | Infra cost only, latency you size | Usage logging pricing, semantic cache upside | License plus infra, caching plugins | Provider list plus Cloudflare fees in beta flows | Credits plus provider passthrough |
| Community sentiment | Dominant OSS mentions, security anxiety | Growing enterprise buzz | Enterprise API crowd | Workers community tailwind | Indie enthusiasm |
| Score | 8.6 | 8.3 | 8.0 | 7.7 | 7.4 |
Methodology
Evidence spans October 2024 through April 2026 across Reddit, Facebook reshares, G2 Learn, TrustRadius, Capterra, X, TechCrunch, vendor docs, Hugging Face, and BleepingComputer. Each criterion scored zero to ten, then score = Σ(criterion_score × weight) rounded to one decimal. We overweight security after 2026 supply-chain headlines and reward clear deployment boundaries, which disadvantages hosted aggregators unless speed is the goal.
FAQ
Is LiteLLM still safe after the 2026 PyPI incident?
Treat it as production-safe only with registry discipline and upgrade reviews, following the maintainer postmortem plus Hugging Face’s recap before bumping versions.
When should I pick Portkey instead of LiteLLM?
Choose Portkey when you want managed uptime, semantic caching, and compliance packaging without a gateway SRE team, as The New Stack and Internet2’s Facebook note imply.
Does Kong AI Gateway require Kong Konnect?
Value peaks when AI traffic inherits Kong’s enterprise control plane per the press release, not as a throwaway sidecar.
How does Cloudflare AI Gateway save money?
Identical-request caching reduces duplicate paid calls within the limits in caching docs, while the August 2025 blog outlines broader FinOps direction.
Is OpenRouter a full enterprise AI gateway?
It removes procurement friction for model access but not deep policy engines, so pair it with egress controls or a second hop if you need Kong-class plugins, as G2’s platform guidance suggests.
Sources
- https://www.reddit.com/r/LocalLLaMA/comments/1s2c1w4/litellm_1827_and_1828_on_pypi_are_compromised_do/
- https://www.reddit.com/r/LocalLLaMA/comments/1r47a79/ai_developer_tools_map_2026_edition/
- https://www.reddit.com/r/openrouter/comments/1rywhrg/openrouter_free_models_eating_api_credits/
- https://www.reddit.com/r/ClaudeCode/comments/1rq7wh8/put_a_proxy_in_front_of_claude_api_after_getting/
G2 and Capterra
- https://learn.g2.com/how-to-roll-out-an-ai-gateway-across-your-organization
- https://www.g2.com/search/generative-ai
- https://learn.g2.com/which-llm-platform-is-best
- https://www.capterra.com/api-management-software/
TrustRadius
- https://www.trustradius.com/products/kong-konnect/reviews
Social and community mirrors
- https://www.facebook.com/InfoQdotcom/posts/in-this-infoq-article-eyal-solomon-discusses-ai-gateways-the-outbound-proxy-serv/1307000014770173/
- https://www.facebook.com/Internet2social/posts/internet2-launches-net-portkey-ai-gateway-service-for-research-and-education-com/1339944828132881/
- https://x.com/OpenRouterAI
News
- https://techcrunch.com/2024/10/29/githubs-copilot-goes-multi-model-and-adds-support-for-anthropics-claude-and-googles-gemini/
- https://www.prnewswire.com/news-releases/kong-ai-gateway-now-supports-agent-to-agent-traffic-becoming-the-most-comprehensive-ai-gateway-for-the-agentic-era-302741741.html
- https://www.bleepingcomputer.com/news/security/popular-litellm-pypi-package-compromised-in-teampcp-supply-chain-attack/
Blogs and official documentation
- https://docs.litellm.ai/blog/security-update-march-2026
- https://lwn.net/Articles/1064479/
- https://huggingface.co/blog/davidberenstein1957/litellm-supply-chain-attack-2026
- https://thenewstack.io/portkey-gateway-open-source/
- https://konghq.com/company/press-room/press-release/kong-ai-gateway-launches-next-gen-capabilities-to-enhance-ai-governance-help-reduce-llm-hallucinations-and-provide-infrastructure-for-agentic-workflows
- https://blog.cloudflare.com/ai-gateway-aug-2025-refresh/
- https://developers.cloudflare.com/ai-gateway/features/caching/