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Join the internet’s smartest crowd

Join the Internet’s Smartest Crowd
Look ahead with GJ Open. Discover talent, train your team, harness the wisdom of crowds.

Develop Your In-House Forecasting Talent with GJ Open

GJ Open, the largest public forecasting platform of its kind, is the ideal place to harness the wisdom of crowds and boost your team’s forecasting skills. We continue to lead the field with our innovative approach that combines collective insight with cutting-edge analytics. Let GJ Open serve you for discovering talent, training your team, and spotting trends.

Tailored Tournaments: Public or Private, Your Choice

  • Cultivate Talent and Teamwork: Use private or public forecasting challenges on GJ Open to spot and develop in-house potential. Depending on your needs, we can create for you a competitive or collaborative environment, complete with our teaming and score-keeping tools.
  • Improve Recruitment Decisions: Let performance guide your recruitment decisions. Use GJ Open to evaluate and train interns. Through our platform and structured feedback, we can help you identify candidates who excel in probabilistic thinking and trend analysis.
  • Identify Trends and Engage Stakeholders: Tap crowd wisdom. Stay ahead by asking the questions that matter to you and note the emerging trends. Involve your stakeholders in forecasting activities that deepen their connection with your brand and your vision.

Enhanced Insights with Custom Feedback Reports

We offer personalized feedback reports for individuals and groups. These detailed reports provide a clear picture of forecasting performance and areas for improvement.

Trusted by Industry Leaders

Our reputation speaks for itself. Leading media companies, top-tier investment funds, and prestigious universities use GJ Open to sharpen their foresight and strategy.

Challenge of the Month:
The Economist: The World Ahead 2026

Are you a Superforecaster®? What do you think will happen in the year 2026? Here’s your chance to forecast. In our 11th annual collaboration with The Economist and its annual publication previewing the year ahead, we invite you to take part in The Economist: The World Ahead 2026 challenge to test your ability to predict the outcome of political, economic, and cultural events featured in its pages.

NOTE: To be eligible to win this challenge, you must forecast on at least 22 of all the questions launched in this challenge through its conclusion in early October 2026. We are planning on launching 25 questions for this challenge.

The winner will be published in The Economist in late 2026!

Join the Challenge!

How to Become a Superforecaster®

Do you think you have what it takes to be a professional Superforecaster®? Best forecasters on GJ Open compete for a chance to join the ranks of Good Judgment’s professional Superforecasters. Read about the selection process here.

Intrigued?

Stop guessing. Start Superforecasting.

Schedule a consultation to learn how our FutureFirst monitoring tool, custom Superforecasts, and training services can help your organization make better decisions.

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