MuiRouterBest LLM Gateway 2026
The best LLM gateway in 2026
Every gateway on this list is a legitimate choice — the right one depends on whether you want a managed endpoint or your own infrastructure, and whether you're a solo developer or a governance-conscious enterprise team. Here's how MuiRouter, OpenRouter, LiteLLM, Portkey and Cloudflare AI Gateway actually differ.
5 LLM gateways, organized by who they fit
1.MuiRouter
Start freeA managed, OpenAI-compatible gateway to OpenAI, Claude, Gemini, Grok, Workers AI, Moonshot and MiMo. Native Anthropic and OpenAI endpoints, per-token pricing with no separate top-up fee, and a built-in MCP server.
- No infrastructure to run — sign up and call the API
- Native /v1/messages and /v1/responses endpoints, not just a translation layer
- One wallet, one usage log across every model
- Narrower model catalog than some alternatives (curated, not 100+)
Best for developers who want a managed endpoint with native Claude/GPT access and simple per-token billing.
2.OpenRouter
Broadest catalogA managed API gateway with the broadest model catalog of the group — hundreds of models from dozens of providers, priced at the provider's own rate with no token markup.
- Hundreds of models across dozens of providers
- No markup on provider token pricing
- Free rate-limited models to experiment with
- 5.5% card fee on credit top-ups (5% crypto)
- 5% fee on BYOK usage past the free monthly allowance
Best for teams that want the single widest model catalog and don't mind managing top-up fees separately.
3.LiteLLM
Open sourceAn open-source proxy and Python SDK you self-host, translating 100+ providers into one OpenAI-shaped interface. Enterprise adds SSO, audit logs and support.
- 100+ providers — the widest catalog here
- Full control over deployment and routing logic
- Free open-source core
- You run and maintain the infrastructure yourself
- Enterprise features require a paid, custom-priced tier
Best for teams that want full infrastructure control and are comfortable self-hosting.
4.Portkey
Enterprise stackA production stack for AI teams bundling an AI gateway, observability, guardrails, governance and prompt management, with access to 1,600+ LLMs.
- Broadest model access — 1,600+ LLMs
- Deep observability, guardrails and governance features
- Free tier to get started
- Paid plans needed for full production features
- More platform than a lightweight router — heavier setup
Best for larger teams that need governance, guardrails and observability alongside routing.
5.Cloudflare AI Gateway
Built into CloudflareAn observability and control layer for AI calls to Workers AI, Anthropic, Gemini, OpenAI and more, with caching, rate limiting and automatic fallback — available on any Cloudflare account.
- No extra account needed if you're already on Cloudflare
- Built-in caching, rate limiting and fallback
- Available on every Cloudflare plan
- Best suited to teams already building on Cloudflare
- Less focused on unified per-token billing across providers
Best for teams already running on Cloudflare who want caching and fallback without a new vendor.
Best LLM gateway FAQ
- Should I choose a managed gateway or self-host one?
- Choose managed (MuiRouter, OpenRouter, Portkey, Cloudflare AI Gateway) if you don't want to run infrastructure. Choose self-hosted (LiteLLM's open-source core) if you need full control over routing logic and are comfortable operating the proxy yourself.
- Which gateway has the widest model selection?
- OpenRouter and LiteLLM both cover very broad catalogs — OpenRouter with hundreds of managed models, LiteLLM with 100+ providers you connect yourself. MuiRouter is more curated, covering the mainstream providers most teams actually use.
- Which one is best for a solo developer just starting out?
- MuiRouter or OpenRouter are the simplest starting points — sign up, get a key, call the API, with no infrastructure to run. MuiRouter adds native Claude/GPT endpoints and no separate top-up fee.
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