LinkedIn’s Crosscheck Lets Premium Users Pit AI Models Against Each Other for Free

If you’ve ever wondered whether ChatGPT or Claude gives better answers for your specific job, LinkedIn just made that comparison a whole lot easier.

The professional network quietly launched a new feature called Crosscheck, and it’s genuinely one of the more interesting things to come out of LinkedIn in a while. The idea is simple but clever: submit a prompt, get two answers from two different AI models, pick the one you like better, and then find out which models were behind each response. Think of it as a blind taste test for AI.

Right now, Crosscheck is rolling out to LinkedIn Premium subscribers in the United States.

A Blind Taste Test for AI Models

LinkedIn’s Chief Product Officer Hari Srinivasan describes Crosscheck exactly that way — a blind taste test. You don’t know which model you’re reading until after you’ve already made your choice. That’s actually a smart design decision.

Most AI comparisons are tainted by brand loyalty. People who already love Claude tend to say Claude is better. People who swear by ChatGPT tend to favor it regardless of output quality. By hiding the model names until after you vote, Crosscheck forces you to judge responses on their actual merit.

So your professional instincts get to drive the decision. Not your preconceptions about which company makes the “best” AI.

Which AI Models Show Up in Crosscheck

The lineup is already impressive for an early product. In initial testing, Crosscheck served up responses from Anthropic, Google, MoonshotAI, Mistral, and Amazon, alongside models from OpenAI and Microsoft.

Srinivasan acknowledges this is still an “early product” from LinkedIn Labs, with work still needed to make it faster and expand the model roster. But having this many players at launch is a strong start.

Plus, there’s a leaderboard coming. LinkedIn will track how professionals across different industries rate each model, so you’ll be able to see whether lawyers prefer different AI tools than marketers, or whether engineers consistently favor one model over another. That industry-specific data could actually be genuinely useful when deciding which AI tool to pay for.

No Token Limits. No Extra Subscriptions.

Here’s where Crosscheck gets really practical. There are no limits on text-based conversations. You can run as many comparisons as you want without hitting a usage cap or getting cut off mid-project.

That’s a meaningful benefit. Most AI platforms either throttle free users heavily or push them toward paid tiers pretty quickly. With Crosscheck, your LinkedIn Premium subscription covers the whole thing. No separate ChatGPT Plus subscription. No Anthropic Pro account. Just your existing LinkedIn plan.

The catch is that Crosscheck currently supports text prompts only. You can’t generate images, upload files, or access the more advanced tools available natively on each AI platform. For deep technical work or complex document analysis, you’d still need to go directly to those platforms.

But for everyday professional use? Writing, research, drafting emails, brainstorming? Crosscheck covers a lot of ground.

What LinkedIn Does With Your Data

Worth knowing before you dive in. LinkedIn does share data back to the AI companies participating in Crosscheck.

The company says that “anonymized data is shared with model builders to help them understand how their models are performing amongst different occupations.” No personally identifiable information gets passed along, according to LinkedIn’s explanation.

Still, it’s worth keeping in mind. Your usage patterns, the types of questions you ask, and the responses you prefer all contribute to training and improvement of these models. That’s true of most AI tools, but it’s good to know it explicitly here.

Who Can Use It Right Now

Crosscheck is currently available to LinkedIn Premium subscribers in the United States. The company plans to expand access to more countries and eventually free users “soon,” though no specific timeline has been announced.

If you already pay for LinkedIn Premium and do any kind of professional writing, research, or communication work, this is worth exploring immediately. The ability to compare frontier AI models side by side without paying extra — and without the bias of knowing which model you’re reading — is a genuinely useful tool that most professionals don’t have access to anywhere else.

The leaderboard feature alone could reshape how teams make decisions about which AI tools to adopt. Instead of relying on tech reviews or vendor marketing, you’ll have real data from people who share your industry and job function.

That kind of practical, peer-sourced insight is exactly what LinkedIn is supposed to be good at. Nice to see the platform deliver on that promise.