How to Actually Compare Coding Models: What BridgeBench Measures That Older Benchmarks Don't
Radek Venzhöfer ·
<p>When a client asks which coding model we recommend, "it topped the leaderboard" isn't a useful answer anymore — the classic benchmarks that used to differentiate models have stopped doing their job.</p>
<h2>Why the old benchmarks stopped being useful</h2>
<p>HumanEval and MBPP test isolated function completion: given a spec, write the function. Frontier models now clear above 90% on both, which means the benchmark no longer separates a genuinely strong model from an adequate one — everyone's bunched at the ceiling. A score that used to predict real-world usefulness now mostly predicts whether a model is recent.</p>
<h2>What BridgeBench measures instead</h2>
<p>BridgeBench is an open-source coding-model benchmark platform built around a different premise: production software work isn't one task, it's several distinct skills. It evaluates across seven categories — UI generation, security, refactoring, hallucination resistance, debugging, speed, and cost efficiency — using more than 130 real-world tasks spanning algorithms, debugging, refactoring, generation, UI, and security. The methodology is built around three principles: direct provider measurement, reproducible evaluation, and production-relevant task design, rather than synthetic puzzle-style problems.</p>
<h2>Why the split into categories matters more than a single score</h2>
<p>A model that's excellent at generating a UI component and weak at resisting hallucination on ambiguous prompts is a different tool than one with the reverse profile, and a single averaged leaderboard score erases that distinction entirely. For picking a model for a specific piece of client work — a refactor versus a greenfield UI build versus a security-sensitive integration — the category-level breakdown is the part that's actually decision-relevant, not the aggregate rank.</p>
<h2>How we'd actually use this</h2>
<p>Not as a replacement for testing a model on your own task — we've made that argument before and it still holds. A category-based benchmark like this is useful for narrowing the shortlist before you spend your own time testing: if a client's biggest risk is hallucinated code in an unfamiliar codebase, the hallucination-resistance category tells you which models are even worth trialing, before you burn a week finding that out yourself.</p>