FlopHero
0 min read
Updated: Oct 15, 2025

Solver accuracy and benchmarks

Solver Accuracy and Benchmarks

Solver accuracy determines how much you can trust the solutions you study. HERO.Precision® was built to deliver highly accurate GTO results for PLO, using strict benchmarks to ensure every simulation is reliable and consistent. These standards let you study confidently, knowing the strategies are sound.

How Solver Accuracy Is Measured

Solver accuracy is based on exploitability, which shows how close a solution is to true GTO play.
Lower exploitability means higher accuracy. For example, a solve with 0.3% exploitability is more precise than one at 1.0%.

Exploitability reflects how much a perfect opponent could win by exploiting the strategy. If a solve has 0.4% exploitability, that opponent could theoretically win 0.4% of the pot per hand. The closer this number is to zero, the stronger the solution.


Exploitability measures solver precision and reliability.

This metric is objective and comparable across solvers. When HERO.Precision® reports under 0.4% exploitability, that level of precision can be directly compared to other solvers’ claims.

What Accuracy Means for Your Study

High accuracy lets you trust what you learn.
When exploitability is under 0.4%, the remaining imperfections appear only in rare or marginal spots. They don’t affect the overall strategy or your understanding of optimal play.

Focus on learning why strategies work rather than memorizing exact frequencies. The core patterns and concepts are what matter, and HERO.Precision® ensures those are always correct.

You can study freely knowing the solver’s guidance is dependable.

HERO.Precision® Accuracy Standards

HERO.Precision® consistently solves most scenarios to under 0.4% exploitability, a level considered exceptionally strong for PLO.
Even professional players make errors that cost more than that per hand.

This accuracy standard applies across all simulation types, including Precision and Expand solves. You can rely on consistent quality regardless of the type of analysis you’re running.

Benchmarking Against Other Solvers

FlopHero routinely benchmarks HERO.Precision® against other leading PLO solvers. These tests confirm that our solutions match the strategic depth of top-tier solvers while delivering faster results.

Benchmarking involves solving identical scenarios on different engines and comparing:

  • Action frequencies
  • EV calculations
  • Range structures

When the differences are minimal, the solvers are considered strategically equivalent.


Benchmarks show HERO.Precision® matches top solvers in accuracy and consistency.

This validation ensures you’re studying authentic, high-quality GTO solutions.

Speed vs Accuracy

There’s always a balance between precision and solving time.
You can lower exploitability slightly by running longer solves, but the improvement rarely impacts study or gameplay.

HERO.Precision® maintains under 0.4% exploitability while solving quickly.

  • Real-time river solves complete in 0.2 to 6 seconds.
  • Full hand uploads process fast without loss of accuracy.


HERO.Precision® optimizes solving speed while keeping high accuracy.

This optimization allows real-time features and smooth workflow, something ultra-slow solvers can’t provide.

Accuracy Across Different Scenarios

PLO has varying complexity depending on stack depth, position count, and board texture.
Simple heads-up spots solve quickly with very low exploitability, while deep multiway pots take more computation.

Even so, HERO.Precision® keeps accuracy within reliable ranges for all types:

  • Heads-up pots: often below 0.3%
  • Multiway spots: up to 0.45%
  • Complex deep-stack spots: still below 0.5%


Accuracy remains stable across all simulations.

This consistency ensures that every analysis you run is trustworthy.

Continuous Accuracy Improvements

Solver performance keeps advancing.
As algorithms improve and hardware becomes faster, HERO.Precision® is updated automatically for higher accuracy without increasing solve times.

The FlopHero development team constantly monitors benchmark results, fine-tuning algorithms to maintain world-class standards.
When updates are deployed, your solver instantly benefits - no action needed on your part.


Regular updates keep HERO.Precision® at the top of PLO solver technology.

You can rely on every simulation today being as accurate as modern computing allows.

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