The best OpenRouter alternatives in 2026

OpenRouter made one promise popular: one API key, one balance, hundreds of models. It still keeps it. Its pricing page lists 600+ models from 80+ providers, billed at each provider's list price.

So why look elsewhere? Usually for one of four reasons: the fee on credit purchases, a requirement to run the gateway yourself, tighter control over keys and data, or a gateway that has to sit inside something bigger than a chat call. This guide compares the main options on those points, fairly, with where each one fits.

What OpenRouter gets right

• List-price inference on every plan. The fee sits on credit purchases instead: 5.5% on the Standard plan and 8% on Business.
• Generous bring-your-own-key terms. On Standard and Business, the first $25,000 of list-price inference a month on your own keys carries no fee; after that it is 5%.
• Smart default routing. OpenRouter weighs effective price, throughput, time to first token, rate limits and reliability, and a provider with far worse errors gets no traffic until it recovers. You can override it per request with order, only, ignore, sort, zdr, data_collection and max_price.
• A free way in. 25+ free models, at 50 requests a day, or 1,000 once you have bought $10 of credits.

If breadth on one bill is what you need, it is hard to beat.

The alternatives at a glance

Vercel AI Gateway

Vercel charges the provider's list price with no platform markup on tokens, including when you bring your own key. You can call it from any infrastructure, not only Vercel, through the AI SDK, OpenAI Chat Completions, the OpenAI Responses API or Anthropic Messages. Budgets cap spend per team, project, API key or member, and uptime is published per model and provider.

Fits teams on the AI SDK, or anyone who wants list price with no fee on tokens. Note that bringing your own key needs purchased credits, and a failed request on your key can fall back to Vercel's credentials, billed to your balance.

Cloudflare AI Gateway

Cloudflare's gateway sits in front of your provider calls and adds analytics, caching, rate limiting, retries and model fallbacks. Analytics, caching and rate limiting are free. Unified Billing, where you pay for third-party models through Cloudflare, carries a 5% fee on credits purchased, with inference passed through at provider rates.

Fits teams already on Cloudflare who want caching and visibility in front of providers they already use.

LiteLLM

LiteLLM is an open-source library and proxy that gives you one OpenAI-format interface to 100+ providers. The open-source proxy includes virtual keys, users and teams, spend tracking, budgets, rate limits and fallbacks. Virtual keys need a Postgres database you run. Enterprise adds SSO and SCIM, audit logs and support SLAs, priced "by your annual gateway request capacity, deployment architecture, and support needs — never per token."

Fits teams that must keep the gateway inside their own network and are happy to operate it.

Portkey

Portkey pairs an open-source gateway with hosted plans built around observability, guardrails and prompt management. The Developer plan is free for 10,000 recorded logs a month; Production is $49 a month for 100,000, then $9 per additional 100,000. You store your provider credentials in Portkey as Integrations. Portkey is now part of Palo Alto Networks, sold as Prisma AIRS AI Gateway, which became generally available on July 16, 2026.

Fits teams whose first need is logging, guardrails and governance over providers they already pay for.

Where Momor Gateway fits

Momor Gateway is for teams that bring their own provider contracts, have rules about where data goes, and want a call that fails to fail over properly.

Two lines of change. The compatible endpoint takes OpenAI Chat Completions requests, so the OpenAI SDK works with a new base URL and key. Momor reads model, models, provider and stream; everything else goes to the provider as you wrote it, translated for Anthropic, Gemini and Vertex. provider.order and provider.ignore work the way OpenRouter users expect.

Name models the way you think of them. A bare model name, publisher/model, one provider's offering, or a tier such as tier/high, which Momor anchors on Claude Sonnet. Candidates are tried cheapest first unless you order them.

Failover that carries the conversation. A provider that fails before the model speaks is stepped over and the next one tried. The conversation moves with its reasoning, tool calls and results, and tool-call ids are rewritten into the form each provider accepts, the same way on every turn, so calls stay paired with their results. A stream that breaks mid-answer is never stitched to another provider's answer: by default it stops, and on Momor's own API you can choose rollover, where the next provider answers again from its first token.

Your keys, on your terms. Save several keys per provider. Prioritized keys go before Momor's keys, fallback keys after, and each prioritized key decides whether Momor's keys may stand in for it. Any key can be limited to certain models, API keys or members. A call on your key costs 5% of its list price from your credits.

Data rules you can enforce. Turn on zero data retention for one call or for the whole organization. Under it, a call runs only on keys marked as covered by a zero-data-retention agreement, never on a key sent with the call, and file processing is refused. Call records hold metadata only, never prompts or responses, and are deleted after 90 days.

Files handled before the model sees them. Ask for file processing and Gateway converts what the model cannot read, by MIME type: PDF and Word readers, transcription models for recordings, OCR models for scans.

The same router runs Momor Workflows. If your model calls are steps in longer processes, Momor Workflows runs them with every step recorded, on the same Gateway.

What to weigh:

• A smaller catalog. 12 providers and 108 current models, against OpenRouter's 600+.
• Momor's own keys cover only the providers Momor resells, marked resale: true in the catalog. Every other provider runs on your key.
• The 5% fee on your own keys starts with the first call. There is no monthly allowance like OpenRouter's $25,000.

How to choose

• Most models on one balance: OpenRouter.
• List price with no fee on tokens, AI SDK: Vercel AI Gateway.
• Already on Cloudflare: Cloudflare AI Gateway.
• Must run inside your network: LiteLLM.
• Logs, guardrails and governance first: Portkey.
• Your own provider contracts, strict data rules, calls inside long-running work: Momor Gateway.

New Gateway organizations start with $25 in credits. Read the quickstart, check the model catalog, or see how failover works.