Flux-2 certifies professionals who operate across multiple domains simultaneously. Strategy and execution. Depth and breadth. One in four candidates who attempt Flux-2 pass.
The step from Flux-1 to Flux-2 is not about working harder. It is about working wider. Flux-2 professionals don't just execute -- they own the strategy behind the execution. They move across product, marketing, operations, and finance with equal fluency.
The 4-hour window is long enough to demand coherence across multiple functions -- and short enough to expose anyone who can only move fast in one direction. The scoring rubric shifts at this tier: domain breadth increases to 18% and begins to become a real differentiator.
Most Flux-1 candidates who attempt Flux-2 fail on domain breadth. They build one excellent deliverable instead of a cohesive multi-part solution. At Flux-2, the question is not just'can you build?' but 'can you build across the whole problem?'
A regional trucking company with 200 drivers has 34% annual turnover. Exit interviews consistently cite poor communication and feeling invisible to management. The CEO estimates $2.4M in annual costs from turnover -- recruiting, training, and lost productivity. You have 2 hours. Solve the problem: a driver engagement strategy, an internal communication platform or tool, a retention metrics dashboard, and an implementation roadmap. All four deliverables required.

Each dimension scored 1-10.
The Flux Challenge tests what you can produce -- not what you have studied. These free resources from Anthropic Academy can help you sharpen your skills before you attempt. None are prerequisites. All are worth your time.
The mental models for cross-domain AI-augmented work. Flux-2 demands breadth -- this course builds the foundational thinking.
View courseMulti-step, multi-domain AI collaboration. Directly applicable to the kind of sustained, broad execution Flux-2 demands.
View courseTwo of the most common domain breadth gaps at Flux-2. Sharpening these before your attempt directly addresses the rubric's domain breadth dimension.
View courseFlux-1 asks you to build one complete solution. Flux-2 asks you to build multiple deliverables across different functions -- strategy, execution, tooling, and planning simultaneously. The problem is designed to require breadth, not just depth.
Domain breadth measures your ability to operate across multiple business functions in a single submission. At Flux-2, you need to demonstrate competence across at least 2-3 domains -- not just your strongest one.
No. A Flux-1 approach -- build one excellent thing quickly -- will not pass Flux-2. You need a multi-part solution that addresses the problem across multiple dimensions. Speed without breadth fails at this tier.
For a Flux-2 candidate, yes -- but only if you move immediately. The first 30 minutes are critical. Candidates who spend too long on strategy before building consistently run out of time.
Earned in sequence. No study guides. A real problem, a real time limit, and a fair result. Start with Flux-0 -- free during early access beta or attempt any tier directly.
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