Consider OpenRouter when…
Shortlist OpenRouter when you want a large catalogue of models from 80+ providers, routing preferences, and free models for experiments.
Explore OpenRouter alternativesFIND YOUR FIT
OpenRouter vs Vercel AI Gateway
OpenRouter vs Vercel AI Gateway: compare two hosted multi-provider gateways by fees, free tiers, bring-your-own-key rules, and spend controls.
The decision in brief
Both are hosted gateways that bill inference at provider list prices from a prepaid balance, with fallbacks and support for your own provider keys. OpenRouter adds a platform fee when you buy credits and offers free models with daily caps; Vercel AI Gateway charges no platform fee on tokens, gives each team a monthly free credit for selected models, and sits alongside Vercel's AI SDK and hosting.
A focused editorial selection based on the linked official documentation. Fit notes are our judgment, rather than firsthand benchmark results or a universal ranking. How we select and verify information.
Compare the working details
| Decision factor | OpenRouter | Vercel AI Gateway |
|---|---|---|
| Main focus | Trying and switching between many hosted models through one API key, without opening an account with each provider. | Teams building with the AI SDK or on Vercel who want model access, spend controls, and observability in the same account, though it works from any infrastructure. |
| Working setup | Create an account, buy credits or start with the free models, point an OpenAI-compatible client at OpenRouter's base URL, then set fallbacks and provider preferences. | Create an AI Gateway API key in a Vercel team, call a model by name from the AI SDK or an OpenAI-compatible client, then add fallbacks, budgets, and provider keys as needed. |
| Pricing model | Inference is billed at each provider's list price. Pay-as-you-go plans add a platform fee when you buy credits rather than on each request, and Enterprise pricing is set by contract. On paid plans, bring-your-own-key traffic is free up to a monthly allowance, then carries a small fee. A free tier offers 25+ free models with daily request caps. | No markup or platform fee on tokens: you pay the provider's list price from prepaid AI Gateway Credits. Every team gets a small monthly free credit for a subset of models with lower rate limits, and buying credits moves you to the paid tier. Bring-your-own-key use has no fee but requires purchased credits. |
| What to verify | Free models are capped per minute and per day, and EU or US in-region routing needs the Business plan or above; add the fee on credit purchases when you compare costs. | Buying credits ends the monthly free credit, and AI Gateway budgets exclude bring-your-own-key spend, so set spending limits with the provider as well. |
Which belongs on your shortlist?
Consider Vercel AI Gateway when…
Shortlist Vercel AI Gateway when you build with the AI SDK or on Vercel, and want budgets and observability in the same team account.
Run the same evaluation in both
- Call the same model through both with identical prompts and compare the amount charged per request.
- Configure a fallback model in each and force the primary model to fail.
- Set a spend cap in each, check whether bring-your-own-key traffic counts toward it, and see what happens when it is reached.
Try the same task before you choose
Route one fictional app's traffic across providers
Use the same fictional setup in each candidate: a support-chat app for an invented company, Northwind Bikes, sends 200 test prompts to a primary model, with a model from a different provider as fallback. Use test API keys with low spend caps and no real customer data. Compare routing, failure handling, cost, and logs for the same run.
Every check starts as Not run. Record your own observations; these are evaluation criteria, rather than completed product tests. Your worksheet stays in this page and can be downloaded.
| Task and expected observation | OpenRouter | Vercel AI Gateway |
|---|---|---|
| Point an OpenAI-compatible client at the gateway The test prompts succeed after changing only the base URL, API key, and model names. | ||
| Make the primary model fail on purpose Requests move to the fallback model, and you can see which model answered each one. | ||
| Check what a failed attempt costs Record from the gateway's own usage view whether failed or retried attempts are billed. | ||
| Set a spend cap on one key Requests stop or alert at the cap, and you know whether bring-your-own-key traffic counts toward it. | ||
| Find one specific request in the logs Locate the prompt, model, tokens, latency, and cost for a chosen request, and note how long logs are kept. | ||
| Check where requests are processed Confirm whether traffic can be kept in one region, and on which plan. | ||
| Total the cost of the run Provider charges plus any platform fee or markup for the 200 prompts, then a clearly labelled estimate for a busier month. |
0 of 14 checks have an observation. An observation does not imply a passed test.
Sources and check dates
Provider documentation supports the product and billing descriptions. Confirm current limits and terms before choosing a plan.
ShowMeYourSaaS also offers commercial product coverage. These guides follow our editorial selection criteria; placement is not a purchased ranking. Send a correction with the page and a supporting source.