LiteLLM Alternatives (2026): 7 Gateways Compared
LiteLLM is the de-facto standard open-source LLM gateway — 53.6k GitHub stars and weekly releases. The teams shopping for alternatives usually love the product and are tired of operating it. Here are seven credible paths, by problem.
LiteLLM earned its position: one OpenAI-compatible API to 100+ providers, virtual keys, budgets per org/team/project/key, an MCP gateway with production OAuth, explicit air-gap support, and a release cadence — weekly stable releases through 2026, plus a Rust migration announced in June 2026 targeting sub-1ms overhead — that most vendors cannot match. If your LiteLLM deployment is healthy, this page will not talk you out of it.
But LiteLLM at enterprise scale is a system you operate, not a service you consume: Postgres and Redis to run, YAML and key hierarchies that sprawl as teams multiply, weekly upgrades to track, and quote-based enterprise pricing for the SSO/audit features large deployments need. Those are the switch drivers we hear, and each points to a different alternative.
Why teams look beyond LiteLLM
What LiteLLM does well is the baseline. Provider breadth (100+), FinOps depth (budgets and spend attribution at every level of the org hierarchy), the most mature MCP gateway among open-source options, and a sovereignty story — self-hosted, air-gap capable, 'no data leaves your environment' — that SaaS gateways cannot offer. Any replacement gives some of this up.
The first switch driver is operational ownership. LiteLLM's enterprise tier is a license key on software you still run: the database, the cache, the upgrades, the on-call rotation are yours. Teams without platform-engineering capacity — or with better uses for it — start looking at managed gateways (Portkey, Kong Konnect, Cloudflare, OpenRouter) precisely because someone else carries the pager.
The second is configuration sprawl and support at scale. What starts as one proxy config grows into hundreds of virtual keys, per-team YAML, guardrail attachments and model aliases maintained by hand. The weekly release cadence that makes LiteLLM exciting also means constant change management, and the Rust migration staged through December 2026 — explicitly "not a rewrite" from the user's perspective, per BerriAI — is still a platform transition to plan around. Enterprise support exists (Slack/Teams channels with SLAs), but pricing is contact-sales and the vendor is a small team behind a very large surface area.
The third is scope. LiteLLM governs traffic through the proxy. It does not document EU AI Act / ISO 42001 / NIST AI RMF evidence tooling, organization-wide AI inventory, or agent sandboxing as a product as of July 15, 2026. Enterprises that adopted LiteLLM as their first control point often outgrow it in the governance direction rather than the routing direction.
How we chose the alternatives
- A runtime data path with policy enforcement — every entry can replace LiteLLM's core proxying job, not just observe it.
- Documented capabilities as of July 15, 2026, cited to vendor sources; vendor benchmarks are reported as claims.
- Operational model stated plainly — who runs the infrastructure, and what the managed option costs in data-path sovereignty.
- Migration friction: all entries are OpenAI-compatible, so leaving LiteLLM is a base-URL change for most applications.
- Scale readiness: multi-team RBAC, budget hierarchies and support models, since config sprawl at scale is the top reason teams shop.
The alternatives at a glance
| Product | Best for | Deployment | Open source | Pricing model |
|---|---|---|---|---|
| Portkey | Platform teams standardizing LLM traffic, cost tracking and guardrails across many product teams. | SaaS, hybrid (data plane in your VPC) or air-gapped (enterprise) | MIT (gateway core); platform proprietary | Free dev tier; Pro from $49/mo; enterprise by quote |
| Bifrost (Maxim AI) | Platform and infrastructure teams that want the fastest possible self-hosted LLM gateway, including regulated shops that need in-VPC or air-gapped deployment. | Self-hosted (Docker/Kubernetes/Go SDK); enterprise in-VPC, on-prem or fully air-gapped | Apache-2.0 core (~6.5k stars); clustering, guardrails and SSO are commercial | OSS core free to self-host; Bifrost Enterprise by quote with a 14-day trial. |
| Kosmoy | Regulated enterprises that need governance enforced in the runtime path, in their own infrastructure. | Self-hosted — single-tenant, your own Kubernetes (air-gap capable) | Proprietary | Enterprise subscription; no self-service tier. |
| Kong AI Gateway | Platform and API teams — especially existing Kong customers — extending proven gateway governance to LLM, MCP and agent traffic. | Konnect (SaaS control plane, customer-hosted data planes) or fully self-managed; air-gap marketed for Enterprise | Apache-2.0 core (incl. ai-proxy); many AI plugins Enterprise/Konnect-only | OSS gateway free; Konnect has free and self-serve tiers; Enterprise by quote — AI Gateway is not sold separately |
| Helicone | Existing Helicone users who need continuity; the maintenance-mode status makes it hard to recommend for new adoption in 2026. | SaaS; full platform self-hostable (Docker Compose, Helm); no air-gapped option documented | Apache-2.0 (main platform repo, ~5.9k stars) | Free Hobby tier (10k requests/month); Pro from $79/mo; Team $799/mo adds SOC 2 and HIPAA; gateway usage billed at provider cost (zero markup). |
| OpenRouter | Developers, AI startups and engineering teams that want one API to many models — with routing, failover and data-policy controls — without running any gateway infrastructure. | SaaS only; EU in-region routing (eu.openrouter.ai) is the residency option | Proprietary | Pass-through provider token prices with no per-token markup; 5.5% fee on credit purchases and a 5% BYOK fee after a free monthly allowance; enterprise by sales contact. |
| Cloudflare AI Gateway | Developer and platform teams — especially existing Cloudflare/Workers shops — that want a free, zero-ops edge proxy for caching, reliability, multi-provider routing and cost control. | SaaS only — runs on Cloudflare's global edge; no self-hosted or VPC option | Proprietary | Core gateway features free on all plans; log storage tied to the Workers plan; guardrails billed as Workers AI inference; Unified Billing adds a 5% fee on provider credits. |
Last verified July 15, 2026 against each vendor's public documentation.
Capability shape vs LiteLLM
Each panel shows one alternative across the same ten capability axes (0–10); the dashed outline is LiteLLM for reference. The further a shape reaches on a spoke, the stronger that capability.
The alternatives, one by one
Portkey
AI gateway & LLM-ops control planePortkey is an AI gateway and control plane for production AI — one API to 1,600+ models across 45+ providers, with observability, guardrails, prompt management and MCP/agent access control — acquired by Palo Alto Networks in May 2026.
The managed upgrade path. Portkey does LiteLLM's job as a service — SaaS, hybrid or air-gapped — with deeper request analytics and a more built-out guardrails ecosystem, now backed by Palo Alto Networks.
Where it beats LiteLLM
- Someone else runs it: managed SaaS and hybrid tiers remove the Postgres/Redis/upgrade burden entirely.
- Observability depth: request logging with 21+ metrics and OpenTelemetry export is more polished than LiteLLM's dashboards.
- Guardrails: 20+ built-in checks with sync blocking plus partners (Zscaler, Bedrock Guardrails), versus LiteLLM's orchestration of external engines.
Where it falls short
- Ownership risk cuts the other way: the public roadmap has been quiet since the May 2026 acquisition (docs changelog stops April 2026, as of July 15, 2026), while LiteLLM ships weekly.
- Smaller open-source footprint (~12.4k stars vs 53.6k) and the free SaaS tier is metered where self-hosted LiteLLM is free at any scale.
- Provider count (45+) trails LiteLLM's 100+.
Bifrost (Maxim AI)
Open-source high-performance AI gatewayBifrost is Maxim AI's Go-based open-source gateway — vendor benchmarks claim ~11 microseconds of overhead at 5,000 RPS — unifying 1,000+ models across 23+ providers behind one OpenAI-compatible API, with virtual keys and budgets, enterprise guardrails, an MCP gateway and clustering.
The performance swap. Bifrost is a Go-based Apache-2.0 gateway that Maxim AI markets as "50x faster than LiteLLM", with vendor benchmarks of ~11 microseconds overhead at 5,000 RPS — same self-hosted sovereignty, different performance envelope.
Where it beats LiteLLM
- Gateway overhead, per vendor-run benchmarks (LiteLLM's own Rust migration is its answer, but that lands through December 2026).
- A single Go binary with gossip-based clustering is operationally simpler than the Python proxy plus Postgres and Redis.
- Same air-gap-friendly posture — documented offline installs with no telemetry.
Where it falls short
- Community and ecosystem: ~6.5k stars and 23+ providers versus LiteLLM's 53.6k stars and 100+ providers.
- Guardrails, clustering and SSO are enterprise-only; LiteLLM's OSS core includes more.
- MCP gateway is younger than LiteLLM's (which has production OAuth 2.0 On-Behalf-Of); no agent SDK or A2A story.
Kosmoy
AI management platformA self-hosted control plane for enterprise AI: one inventory, one policy gateway, one audit trail and a containment sandbox for every model, agent and MCP server a company runs.
The governance graduation. Teams that adopted LiteLLM as a control point and now face auditors move to Kosmoy: a self-hosted platform where the gateway is one layer under an AI inventory, compliance evidence and agent containment.
Where it beats LiteLLM
- Inventory beyond the proxy: four registries including a master agent registry fed by Foundry, Bedrock, Vertex, Salesforce and ServiceNow connectors — LiteLLM only knows what flows through it.
- Compliance: EU AI Act, ISO 42001 (aligned) and NIST AI RMF evidence bundles from registry state plus gateway logs; LiteLLM documents none of these as of July 15, 2026.
- Single-vendor accountability with enterprise support, versus assembling governance around an OSS proxy yourself; kernel-enforced Action Capsule sandboxing goes beyond LiteLLM's per-session VM runtime.
Where it falls short
- No open-source core and no free tier — LiteLLM's adoption path is a pip install; Kosmoy's is an enterprise sales process.
- Provider breadth and release cadence: LiteLLM ships weekly across 100+ providers.
- Developer-tool surface (SDKs, agent runtime, playgrounds) is thinner — Kosmoy optimizes for governance, not developer experimentation.
Kong AI Gateway
AI gateway on the Kong API platformKong AI Gateway is the AI extension of Kong's API gateway: a plugin-based data path that proxies, secures, rate-limits, caches and observes LLM, MCP and agent-to-agent traffic — self-managed or via the Konnect SaaS control plane.
The operationally mature consolidation. Kong brings API-platform discipline — and a managed Konnect control plane with customer-hosted data planes — to LLM, MCP and A2A traffic in one gateway.
Where it beats LiteLLM
- Konnect halves the ops problem: Kong runs the control plane while prompts stay on data planes in your infrastructure.
- A2A traffic governance went GA in April 2026 — a traffic pattern LiteLLM handles more experimentally.
- Enterprise-grade operational tooling (declarative config, plugin lifecycle, LLM analytics with OpenMeter chargeback) built for hundreds of teams.
Where it falls short
- The AI plugins that matter — semantic prompt guard, PII sanitizer, LLM analytics, advanced token limiting — are Enterprise/Konnect-only; LiteLLM's OSS core is far more complete.
- LLM provider breadth trails LiteLLM's 100+.
- No FinOps hierarchy as fine-grained as LiteLLM's org/team/project/key/tag budgets.
Helicone
LLM observability platform with an AI gatewayHelicone is an open-source, developer-first LLM observability platform (traces, costs, prompts, experiments) with a lightweight Rust AI gateway and zero-markup cloud gateway — in maintenance mode since Mintlify acquired the company in March 2026, with feature development ended.
Only for a narrow case, with a caveat: Helicone's observability-first stack with a lightweight Rust gateway has been in maintenance mode since the March 2026 Mintlify acquisition — feature development has ended. Existing users can stay; new adoption is hard to justify.
Where it beats LiteLLM
- Simpler surface: one-line logging integration and zero-markup passthrough billing, with less configuration to sprawl.
- Observability UX (sessions, traces, HQL queries) is more polished than LiteLLM's logs for pure analysis work.
Where it falls short
- Maintenance mode versus the most active gateway project in the ecosystem — the roadmap asymmetry could not be starker.
- No guardrails, no budget hierarchy, no air-gap documented as of July 15, 2026.
- The cloud gateway was reported as private beta in 2026 and is now frozen mid-flight.
OpenRouter
Multi-model API marketplace / hosted LLM routerOpenRouter is a hosted API marketplace exposing 400+ models from dozens of providers behind one OpenAI-compatible endpoint, with provider routing and failover, data-policy controls (ZDR, no-training routing) and, since 2026, organization-level Workspaces and Guardrails.
The zero-infrastructure route. OpenRouter replaces your gateway with a hosted marketplace: 400+ models, provider failover at a scale it reports as 25 trillion tokens per week, and 2026 Workspaces/Guardrails for org controls — funded by a $113M CapitalG-led Series B in May 2026.
Where it beats LiteLLM
- Nothing to run at all — no proxy, no database, no upgrades.
- Model breadth (400+) and marketplace-level failover exceed what a self-hosted LiteLLM sees.
- Data-policy routing (ZDR-only, no-training providers) is built into the request schema.
Where it falls short
- Sovereignty inverts: all traffic transits OpenRouter's cloud, with EU in-region routing as the only residency option — no self-host, no air-gap.
- Platform fees on credits and BYOK sit on top of provider prices; self-hosted LiteLLM charges nothing.
- No compliance tooling, no evals, and observability is spend-tracking rather than tracing as of July 15, 2026.
Cloudflare AI Gateway
Edge AI gatewayCloudflare AI Gateway is an edge proxy between applications and major AI providers, adding caching, rate limiting, spend limits, logging and analytics, dynamic routing with fallbacks and retries, stored provider keys and Llama-Guard-based guardrails on Cloudflare's global network.
The free managed baseline. If your LiteLLM deployment exists mainly for caching, retries, rate limits and cost visibility, Cloudflare does that as a free edge service with enforced spend limits since June 2026.
Where it beats LiteLLM
- Zero operations and zero license cost for the core gateway feature set.
- Edge proximity and proven scale (billions of logs, per Cloudflare's engineering blog).
- Dollar-denominated spend limits enforced at the gateway — a blunt but effective budget control.
Where it falls short
- SaaS-only: prompts transit Cloudflare's edge, and AI Gateway is documented as incompatible with Cloudflare's own Regional Services — the opposite of LiteLLM's air-gap posture.
- No MCP gateway, no RBAC hierarchy, no virtual-key governance comparable to LiteLLM's.
- Guardrails are a single moderation model (Llama Guard 3 8B), billed per evaluation.
Decision guide
Questions buyers ask
Is LiteLLM still a good choice in 2026?
Yes — for many teams it is still the best choice. It has the largest community of any LLM gateway (53.6k GitHub stars), ships weekly, supports 100+ providers, and its self-hosted, air-gap-capable posture is something most rivals cannot match. The honest caveats are that you operate it yourself, enterprise pricing is quote-based, and governance beyond the proxy (compliance evidence, org-wide inventory) is not what it does. If those are not problems for you, staying is the right call.
What is the fastest LiteLLM alternative?
By vendor benchmarks, Bifrost — Maxim AI reports ~11 microseconds of added latency at 5,000 RPS and markets it as "50x faster than LiteLLM". Treat that as a vendor-run claim: no independent benchmark exists as of July 15, 2026, and LiteLLM's own Rust migration (staged August–December 2026) targets sub-1ms overhead. If latency is your driver, benchmark both on your own traffic.
Which LiteLLM alternative helps with EU AI Act compliance?
Kosmoy. LiteLLM provides audit logs and log export, but does not document EU AI Act, ISO 42001 or NIST AI RMF tooling as of July 15, 2026 — and neither do Portkey, Kong, Bifrost, OpenRouter, Cloudflare or Helicone. Kosmoy classifies AI systems by risk tier in its registries and generates framework-mapped evidence bundles from the same source that enforces policy at runtime. On the current timeline (post-Digital-Omnibus), high-risk obligations arrive December 2027 and August 2028; Article 50 transparency applies from August 2, 2026.
Can I run Kosmoy and LiteLLM together?
Yes. Both expose OpenAI-compatible endpoints, so they can chain or serve different populations — a common pattern keeps LiteLLM as the developer experimentation gateway while Kosmoy fronts production and regulated workloads with inventory, compliance evidence and containment. Several Kosmoy customers arrived exactly this way and migrated one base URL at a time.
What does LiteLLM enterprise cost?
BerriAI does not publish prices — the docs say pricing depends on deployment size and direct buyers to sales, with a free 7-day enterprise trial license and AWS/Azure Marketplace procurement ([LiteLLM enterprise docs](https://docs.litellm.ai/docs/enterprise)). Third-party figures circulate but are unverified against the vendor, so budget from a conversation, not a blog post. The OSS core remains free at any scale.
Sources
Every factual claim about another vendor on this page traces to that vendor's own published material or a named third-party source below.
- LiteLLM enterprise documentation — accessed July 15, 2026
- LiteLLM Rust migration announcement (GitHub issue #31263, June 25, 2026) — accessed July 15, 2026
- BerriAI/litellm GitHub repository — accessed July 15, 2026
- Kosmoy AI Inventory — accessed July 15, 2026
- LiteLLM README (100+ providers, MCP/A2A, performance claims) — accessed July 15, 2026
- LiteLLM release notes index (2026 releases) — accessed July 15, 2026
- Guardrail policy templates (incl. offline/air-gapped mode) — accessed July 15, 2026
- MCP deployment docs (registry, exposure controls, air-gap guidance) — accessed July 15, 2026
- litellm-agent-runtime (per-session VM coding-agent runtime) — accessed July 15, 2026
- Portkey open-source gateway repository — accessed July 15, 2026
- Portkey docs — what is Portkey — accessed July 15, 2026
- Portkey docs — plan & feature comparison (SaaS / hybrid / air-gapped) — accessed July 15, 2026
- Portkey docs — observability — accessed July 15, 2026
- Portkey docs — guardrails — accessed July 15, 2026
- Portkey docs — MCP gateway — accessed July 15, 2026
- Portkey pricing — accessed July 15, 2026
- Palo Alto Networks press release — Portkey acquisition completed (May 29, 2026) — accessed July 15, 2026
- Bifrost GitHub repository — accessed July 15, 2026
- Bifrost product page — accessed July 15, 2026
- Bifrost pricing — accessed July 15, 2026
- Bifrost enterprise deployment (in-VPC, air-gapped) — accessed July 15, 2026
- Bifrost guardrails docs — accessed July 15, 2026
- Guardrails at the Gateway (Bifrost blog) — accessed July 15, 2026
- Kosmoy Platform — accessed July 15, 2026
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- Kosmoy Action Capsule — accessed July 15, 2026
- Kosmoy AI Compliance — accessed July 15, 2026
- Kong AI Gateway product page — accessed July 15, 2026
- Kong AI Gateway 3.14 release blog (Agent Gateway GA, A2A) — accessed July 15, 2026
- A2A support press release (PR Newswire, April 2026) — accessed July 15, 2026
- MCP Tool ACLs announcement (AI Gateway 3.13, January 2026) — accessed July 15, 2026
- Kong MCP Registry press release (February 2026) — accessed July 15, 2026
- Konnect LLM usage reporting docs — accessed July 15, 2026
- Kong EU AI Act positioning blog — accessed July 15, 2026
- Kong/kong GitHub repository — accessed July 15, 2026
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- Helicone main GitHub repo — accessed July 15, 2026
- Helicone AI Gateway repo (Rust) — accessed July 15, 2026
- Helicone pricing — accessed July 15, 2026
- Helicone — joining Mintlify (March 2026) — accessed July 15, 2026
- Mintlify acquires Helicone (March 2026) — accessed July 15, 2026
- Helicone cloud gateway / passthrough billing launch — accessed July 15, 2026
- OpenRouter FAQ (fees, data retention) — accessed July 15, 2026
- Provider routing docs — accessed July 15, 2026
- Guardrails announcement — accessed July 15, 2026
- Introducing Workspaces — accessed July 15, 2026
- Business Wire — $113M Series B, 25T tokens/week (May 26, 2026) — accessed July 15, 2026
- TechCrunch — OpenRouter valuation to $1.3B — accessed July 15, 2026
- Cloudflare AI Gateway docs — accessed July 15, 2026
- AI Gateway pricing — accessed July 15, 2026
- Guardrails feature docs — accessed July 15, 2026
- Changelog — spend limits (June 5, 2026) — accessed July 15, 2026
- Changelog — unified REST API (May 21, 2026) — accessed July 15, 2026
- Data Localization Suite docs (AI Gateway compatibility) — accessed July 15, 2026
- Blog — scaling AI Gateway to billions of logs — accessed July 15, 2026
- Blog — AI Security for Apps GA — accessed July 15, 2026
Need governance, not just a swap?
Kosmoy puts an inventory, a policy gateway and a containment sandbox around every AI your teams run — in your own Kubernetes.
Or email sales@kosmoy.com.