OpenMark
Lets you build a custom benchmark and run it against 100+ AI models from different providers, side by side, without needing your own API keys or writing evaluation code.
🔗 Visit OpenMark
Description
Choosing which AI model actually works best for a specific job is different from reading a generic leaderboard — the model that's best at creative writing might be mediocre at your particular customer-support use case. OpenMark's pitch is to let you test models against your own real task instead of a one-size-fits-all benchmark.
It runs custom evaluation tasks against 100+ models across multiple providers, with no API keys or coding required. There are three ways to build a task: a simple AI-assisted editor, an advanced form-based editor, or manual YAML for full control. A "Smart Pick" feature auto-selects a balanced model, stability runs measure how consistent a model's output is across repeated attempts, and a temperature-optimization feature helps find the best setting for a given task. Results compare accuracy, cost, speed, and stability side by side, with an OpenClaw router plugin for production routing and support for image, PDF, and document attachments. Pricing is credit-based across Free, Pro, and Expert tiers, with monthly credits that reset and purchased credits that don't expire — but the dedicated pricing page currently returns a 404, so exact tier prices aren't publicly available at the moment.
💬 Our review
The short version: OpenMark's no-API-keys, describe-your-task approach genuinely lowers the barrier to real model evaluation compared to wiring up your own eval scripts — but hitting a 404 on the pricing page during research is a real ding, since you can't currently see what Free versus Pro versus Expert actually costs before signing up.
Against LMSYS Chatbot Arena, which is free and crowd-voted but generic, OpenMark is purpose-built around your specific task rather than a broad popularity contest. Against Promptfoo or Vellum, which are dev-first tools requiring your own API keys and code to wire up, OpenMark is more accessible to non-engineers willing to describe a task in plain language instead. The stability-run and temperature-optimization features are genuinely useful extras most competitors skip. Best fit: teams or individuals wanting to compare models on their actual use case without setting up API keys or writing test scripts. Weaker fit: anyone who needs to know the exact cost before trying it — the broken pricing page makes that impossible right now.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Paliers Free / Pro / Expert basés sur un système de crédits (crédits mensuels réinitialisés, crédits achetés non expirants), mais la page de tarifs dédiée renvoie actuellement une erreur 404 — les prix exacts par palier ne sont pas publiquement disponibles.
Pros
Teste 100+ modèles sans clé API ni code
3 modes de création de tâche (simple, formulaire, YAML manuel)
Runs de stabilité pour mesurer la cohérence des réponses
Comparaison précision/coût/vitesse/stabilité en un seul rapport
Cons
Page de tarifs cassée (404) au moment de la recherche
Impossible de connaître le prix exact avant inscription
Modèle à crédits parfois moins lisible qu'un prix mensuel fixe