Planetarium vs Electric Twin

What is Electric Twin?

An always-on synthetic audience trained on your own surveys, focus groups and interviews. It is built for enterprise insight and marketing teams that already hold research on their customers.

Your surveys, focus groups and interviews plus machine learning that keeps a language model's answers to your audience; each audience is tested on held-back data.

How do Planetarium and Electric Twin compare?

Row by row, from each company’s own pages. Where one publishes nothing on a point, the row says so.

How accurate is Electric Twin?

92% on NDAM, their stricter measure, against a 94% human ceiling. The figure comes from its own test: their accuracy page; they also report 96% on 1 minus mean absolute error. Led by Prof. Michael Muthukrishna (LSE and NYU), their Chief Science Adviser; pre-registered, with human data collected independently by Stack Data Strategy.

Planetarium was right 87 times in 100 when it names a winner (575 of 660), on 1,500 published news-headline A/B tests (Upworthy, 2013 to 2015), held out and scored once (October 2026). It named a winner on 660 and called the other 840 too close. Headlines only. The full record is on the accuracy page.

When is Electric Twin the better choice?

• You already have deep research on your customers and want a model trained on it.
• You want unlimited questions on the same audience under one license.
• You need ISO 27001 today, or work in a government setting.

When should you choose Planetarium?

• You do not have a research archive, or want audiences beyond your own customers.
• You want to test a live website or an ad, not only ask questions.
• You want to start free and pay by the month at a published price.

How much does Electric Twin cost?

License with unlimited questions, priced by audiences built and seats. No figure on the site.

Planetarium is self-serve by card: Starter $99, Pro $399, Growth $999 a month. First test free. See pricing.

How was this page made?

We publish this page and sell in this category. Every claim about another company comes from that company’s own public pages, or a paper or partner report it cites, read on October 27, 2026, and each is listed below. Where a company publishes nothing on a point, the page says so; that does not mean it cannot do it.

Each company measures accuracy its own way, on its own tests, so the figures are shown side by side but never ranked as one league table. We did not trial the other products. Our own figures are the ones on our pricing and accuracy pages. Something out of date? Tell us through the contact page and we will correct it.