Cloudflare AI Gateway top alternatives 2026: nexos.ai, Best for Enterprise · Kong AI Gateway, Best for Hybrid API Teams · LiteLLM, Best for Open-Source Self-Hosting
Quick Verdict
- nexos.ai – Best for Enterprise: its AI Gateway puts 200+ models behind one OpenAI-compatible endpoint, backed by SOC 2 Type II, ISO 27001 and ISO 42001 certification and EU-hosted infrastructure.
- Kong AI Gateway – Best for Hybrid API Teams: the strongest fit when Kong already fronts your APIs and AI traffic should follow the same policies.
- LiteLLM – Best for Open-Source Self-Hosting: an open-source proxy you run on your own infrastructure, with budgets and routing included free.
- The rest of the field: Portkey (now Prisma AIRS AI Gateway), TrueFoundry, Vercel AI Gateway and OpenRouter each solve a narrower problem well.
The nexos.ai AI Gateway is the best Cloudflare AI Gateway alternative for enterprise teams in 2026, pairing smart LLM routing with the audit-ready governance that European security reviewers ask for. Cloudflare’s gateway remains a capable, low-cost edge proxy for many apps.
Governance is the usual trigger for leaving Cloudflare. The UK government’s Cyber Security Breaches Survey 2025/2026 found that only 24% of UK businesses using or considering AI have practices in place to manage its cyber risks, and 43% reported a breach or attack in the previous 12 months.
Shadow AI makes those gaps expensive. IBM’s 2025 Cost of a Data Breach findings found that one in five organisations reported a breach tied to shadow AI. Organisations with high levels of shadow AI paid about $670,000 more per breach. A gateway that logs, limits and governs every model call is now a security control, not a convenience.
We spent time in each platform’s documentation, pricing pages and console flows, then mapped them against the reasons teams outgrow Cloudflare, with no vendor input on the rankings.
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Cloudflare AI Gateway Alternatives at a Glance
| # | Platform | Best For | Deployment | Pricing Model | Compliance Highlights |
| 1 | nexos.ai | Best for Enterprise | Managed, EU-hosted | Custom enterprise offer | SOC 2 Type II, ISO 27001, ISO 42001, GDPR |
| 2 | Kong AI Gateway | Best for Hybrid API Teams | Self-hosted, hybrid, dedicated cloud | Per gateway service + per request | Enterprise compliance programme |
| 3 | LiteLLM | Best for Open-Source Self-Hosting | Self-hosted (Docker, Helm) | Free open source; Enterprise custom | SOC 2 Type II (ISO 27001 recertifying) |
| 4 | Portkey (Prisma AIRS AI Gateway) | Best for Palo Alto Security Stacks | SaaS, private cloud | Free tier; from $49/month | SOC 2, ISO 27001, HIPAA, GDPR |
| 5 | TrueFoundry | Best for Air-Gapped Deployments | SaaS, VPC, on-prem, air-gapped | Free; Pro $25/user/month | SOC, HIPAA, GDPR badges |
| 6 | Vercel AI Gateway | Best for Next.js Teams | Managed | Zero markup on tokens | Vercel-wide SOC 2 Type II, ISO 27001 |
| 7 | OpenRouter | Best for Model Experimentation | Managed | 5.5% to 8% platform fee | SOC 2 Type II (trust centre) |
Where Cloudflare AI Gateway Stops Fitting
Cloudflare AI Gateway runs as a managed proxy on Cloudflare’s edge, and its free analytics, caching and rate limiting draw many teams in. The friction shows up in four places as usage matures:
- SaaS only: Cloudflare offers no self-hosted or VPC option.
- Exact-match caching: near-duplicate prompts still reach the model.
- Gateway and log limits: accounts are capped at 10 gateways on the free plan and 20 on paid plans, and gateways created on or after 24 September 2026 follow Workers Logs pricing for log storage.
- Unified Billing fee: buying model credits through Cloudflare adds a 5% fee, and Unified Billing is capped at 200 requests per 60 seconds per gateway.
1. nexos.ai – Best for Enterprise
Two products make up nexos.ai, an all-in-one AI platform for enterprises. The AI Gateway gives developers one OpenAI-compatible endpoint to 200+ models from OpenAI, Anthropic, Google Gemini, Meta Llama, Mistral and DeepSeek. The AI Workspace extends the same governance to business teams.
Our move off Cloudflare came down to swapping the base URL in the OpenAI SDK. Behind that endpoint, nexos.ai offers smart LLM routing that weighs cost, model capability and performance. Fallbacks pass requests to a reserve model whenever a provider’s response times spike or its service drops.
Tomas Okmanas (CEO) and Eimantas Sabaliauskas, co-founders of Tesonet, founded nexos.ai in Vilnius, Lithuania, in late 2024. Their track record includes co-founding Nord Security and Oxylabs, so the platform carries a security-first lineage from day one.
The platform gives security reviewers audit-ready evidence. nexos.ai holds SOC 2 Type II, ISO 27001 and ISO 42001 certification, complies with GDPR, runs on EU-hosted infrastructure and displays an EU AI Act badge on its trust centre.
Standout Strengths
- Governance built for chargeback: budget caps per user or team, plus API keys issued per user, team or service with rotation and instant revocation.
- Data protection by default: prompts stay out of model training unless a customer opts in, and zero data retention is available for supported models.
- Spend visibility in one view: LLM observability breaks usage and cost down by team, user, project, model and individual request.
- Cost controls that work automatically: LLM caching reuses responses to identical requests and structures calls for provider-side prompt caching, and the gateway publishes a 99.99% uptime figure.
- Connects to the tools teams use: developer integrations for LangChain, CrewAI, the Vercel AI SDK and n8n, plus AI Workspace connectors for Slack, Microsoft SharePoint, Google Drive and GitHub.
- Enterprise-ready contracts: custom enterprise offers bundle SSO/SAML, RBAC, audit logs and SLAs.
In a customer story published by nexos.ai, e-commerce retailer Pigu.lt describes how it used the platform to optimise its product catalogue. CMO Vytautas Romeika says optimising one item is 99.8% cheaper than doing it manually. The customer story describes the scale of the job:
“Our content team needed to optimize 4 million products in our catalog…”
The video below shows how nexos.ai can work for your team.
Awards and lists: Global Recognition Award 2026 · Disruptors 60 List (Greenfield Partners) · The most promising startup 2025 (Verslo žinios) · Europe’s 50 most promising seed-stage startups (Euro Seed) · Emerging Vilnius Ambassador 2026.
Recommended for: CTOs, platform engineering leads and security teams at enterprises in the UK and Europe that run several LLM providers and need per-team budgets, audit evidence and one governed endpoint.
2. Kong AI Gateway – Best for Hybrid API Teams
Kong AI Gateway brings LLM, MCP and agent traffic under the same policies for platform teams that already route their APIs through Kong. The AI layer runs as a set of policies on Kong Gateway, with Konnect supplying the cloud control plane.
Routing is where Kong goes deepest. AI Proxy Advanced balances traffic across 17 listed providers using round-robin, lowest-latency, lowest-usage, priority or semantic algorithms, with retries and failover built in.
Co-founders Augusto Marietti and Marco Palladino started the company in Milan in 2009 as Mashape, and its core gateway remains open source under Apache 2.0.
Standout Strengths
- Flexible deployment: run the data plane on your own servers, in Kubernetes, or in Kong’s managed Dedicated Cloud Gateways.
- One control plane: existing API policies extend to model calls.
- Usage-based pricing: Konnect Plus runs $105 a month per gateway service plus $34.25 for every million requests, with a 30-day trial.
- Worth knowing: Kong’s AI policies, including AI Proxy Advanced, require Kong’s AI licence.
Ratings: G2 4.4/5 from 356 reviews (Kong Konnect listing) · Gartner Peer Insights 4.5/5 from 153 ratings (Kong Gateway).
Recommended for: platform and API teams already running Kong Gateway or Konnect that want AI traffic under the same policies, on-prem or hybrid.
3. LiteLLM – Best for Open-Source Self-Hosting
LiteLLM gives engineering teams that want to own every layer of their AI stack an open-source proxy that exposes 140+ providers through one OpenAI-format API, MIT-licensed outside its enterprise modules.
Teams install it with Docker, Helm or Terraform, including air-gapped, and choose latency-based, least-busy or lowest-cost routing.
Krrish Dholakia and Ishaan Jaffer founded the project in 2023, and the San Francisco company went through Y Combinator’s Winter 2023 batch.
Standout Strengths
- Generous free tier: virtual keys, hard budgets per key, team or model, and RPM and TPM limits at no cost.
- Compliance claims: LiteLLM published an updated SOC 2 Type II report in September 2026, with ISO 27001 recertification under way.
- Enterprise path: SSO, SCIM, RBAC and audit logs come with the custom-priced Enterprise tier, which offers a 30-day trial key.
- Worth knowing: self-hosting means your team runs Postgres, Redis, upgrades and on-call.
Ratings: Product Hunt 5.0/5 from 24 reviews.
Recommended for: engineering teams with in-house DevOps capacity that want a free, self-hosted proxy and full control of their infrastructure.
4. Portkey (Prisma AIRS AI Gateway) – Best for Palo Alto Security Stacks
Portkey offers the clearest path for security teams standardised on Palo Alto Networks tooling, and it now operates as Prisma AIRS AI Gateway after the acquisition closed on 29 May 2026.
The gateway handles fallbacks, conditional routing, retries, simple and semantic caching, and circuit breakers, and its open-source core is MIT-licensed.
Rohit Agarwal and Ayush Garg founded Portkey in San Francisco in 2023, and it raised a $15 million Series A led by Elevation Capital in February 2026.
Portkey’s documentation lists SOC 2, ISO 27001, HIPAA and GDPR among its compliance credentials.
Standout Strengths
- Layered guardrails: deterministic checks on the free plan, with LLM and partner guardrails plus RBAC on Production.
- Clear entry pricing: a free Developer plan with 10,000 logs a month, then $49 a month for 100,000 logs.
- Worth knowing: long-term packaging for standalone buyers has not been detailed since the acquisition.
Ratings: Gartner Peer Insights 4.6/5 from 202 ratings · G2 4.6/5 from 18 reviews.
Recommended for: security and platform teams already invested in Palo Alto Networks’ Prisma AIRS or wider security stack.
5. TrueFoundry – Best for Air-Gapped Deployments
TrueFoundry suits organisations that cannot send traffic to any shared cloud, because its Enterprise plan installs the gateway in a private VPC, on-prem or with no internet connection at all.
Intel Capital led TrueFoundry’s $19 million Series A in February 2025, four years after the company’s founding.
Standout Strengths
- Deepest private deployment range: VPC, on-prem and air-gapped options on Enterprise.
- Detailed observability: percentile latency (P50 to P99), time-to-first-token, token counts and cost, broken out by team or model.
- Accessible pricing: up to three users can start on the free Developer tier, with Pro at $25 per user per month.
Ratings: Gartner Peer Insights 4.8/5 from 249 ratings · G2 4.6/5 from 59 reviews.
Recommended for: regulated organisations that must keep AI traffic inside a private VPC, on-prem or air-gapped network, especially those serving self-hosted models.
6. Vercel AI Gateway – Best for Next.js Teams
Vercel AI Gateway lets front-end teams already deploying on Vercel add multi-provider AI routing with almost no new tooling, and it reached general availability in August 2025.
Provider failover and model fallbacks ship by default, and requests can be pinned to regional inference.
Standout Strengths
- Zero markup: no platform fee on tokens, even when you bring your own keys.
- Privacy defaults: prompts and outputs are not stored on Vercel’s side, and Pro and Enterprise teams can enforce zero-data-retention routing and disallow prompt training.
- Flexible budgets: spend limits can target a whole team, a single project, one API key or an individual member.
Ratings: G2 4.7/5 from 87 reviews (Vercel platform).
Recommended for: front-end and full-stack developers building on Next.js, the AI SDK or Vercel hosting who want zero-markup model access.
7. OpenRouter – Best for Model Experimentation
OpenRouter gives developers who want to try the latest model releases the widest catalogue here, with more than 500 models across upward of 80 providers on one account and one bill.
Provider fallbacks are on by default, and an Auto Router picks a model based on the task.
Standout Strengths
- Largest catalogue here: 500+ models, including free models for prototyping.
- Enterprise options: SSO, SCIM and contractual SLAs, with EU and US in-region routing on Business and Enterprise.
- Fee structure: 5.5% on Standard and 8% on Business, with the first $25,000 of monthly bring-your-own-key usage fee-free.
- Worth knowing: percentage fees grow with spend, and OpenRouter runs only as a hosted service.
One Trustpilot user’s 1-star review (26 September 2026) describes MCP tool calls breaking on every OpenRouter model tested, although Vultr, DigitalOcean and Amazon Bedrock ran the same model fine, and notes the failed calls were still charged.
Ratings: G2 4.6/5 from 25 reviews · Trustpilot 1.6/5 from 66 reviews.
Recommended for: developers, startups and prototyping teams that want to test many models quickly under one bill.
Before You Switch: A Migration Checklist
Secure operation, with logging and monitoring at its core, gets a dedicated stage in the NCSC’s guidance on building AI systems securely, and a gateway migration benefits from the same discipline.
- Teams should inventory routes: base URLs, providers, cache rules and rate limits need listing per gateway.
- Admins should rebuild budgets first: per-team limits belong in place before any traffic moves.
- Security teams should reissue scoped keys: keys you can rotate and revoke replace shared ones.
- Engineers should shadow traffic: a slice of requests reveals latency, cost and error differences, and the new controls should line up with the EU AI Act, whose main provisions have applied since 2 August 2026, with a few phased in later.
The Bottom Line
nexos.ai is our top pick because its AI Gateway gives enterprise teams certified governance, per-team budgets and smart LLM routing across 200+ models from one endpoint. Cloudflare AI Gateway still suits edge-heavy apps.
Kong AI Gateway suits teams that already run Kong’s API gateway, and LiteLLM rewards teams willing to own every layer. Portkey suits Palo Alto Networks shops, and TrueFoundry fits air-gapped networks.
Vercel AI Gateway keeps token costs markup-free for Next.js teams, and OpenRouter remains the quickest way to experiment across 500+ models.
Your compliance needs should decide the deployment model, and a test against real traffic should confirm the final choice before you commit.
FAQs
What is the closest like-for-like alternative to Cloudflare AI Gateway?
For enterprise teams, nexos.ai is the closest like-for-like move. It runs as a managed service, needs only a new key and base URL for existing OpenAI SDK code, and adds team budgets and EU-hosted infrastructure. Vercel AI Gateway and OpenRouter are also managed and quick to set up.
Is there an open-source Cloudflare AI Gateway alternative?
Yes, LiteLLM is open source and fully self-hosted, and Kong’s and Portkey’s gateway cores are open source too.
Does nexos.ai work with existing OpenAI code?
Yes, existing OpenAI SDK code runs against the nexos.ai AI Gateway after a base URL change, because the gateway follows the OpenAI API format and puts 200+ models behind that one endpoint.
Which Cloudflare AI Gateway alternative suits GDPR and EU data residency?
The nexos.ai AI Gateway suits UK and EU teams best, running on EU-hosted infrastructure with GDPR compliance and zero data retention for supported models. TrueFoundry is the stronger fit when traffic must stay fully on-prem or air-gapped.