Arena.ai Plus

Enhances the Arena.ai leaderboards with Pricing, Bang for Buck, Context Size & Modalities columns, plus gen alerts!

Arena.ai Plus is a Chrome Extension that infuses the power of Arena.ai's human-vetted blind scoring with the context needed to make actual business decisions. It enriches the Arena.ai leaderboards with real-time pricing data, a "Bang for Buck" value metric, and deeper model insights - helping you save on API expenses by picking the smartest model at the right price. Key Features: 1. Real-Time Pricing Integration See what every model actually costs, right inside the leaderboard. Arena.ai Plus injects a Pricing column with fresh data from your choice of provider: OpenRouter, Helicone or LiteLLM. Switch providers or toggle token units (1M / 100K) from the extension popup. 2. "Bang for Buck" Index The core value metric - designed to surface the smartest models for the lowest price. Measures relative intelligence against cost using a logarithmic pricing curve. Applies a quality bonus to top-ranked models so elite-tier performance is weighted fairly. Helps you identify which models deliver the most intelligence per dollar. 3. Deep Model Insights Model Age - See how many days since each model was released, so you can spot the newest contenders at a glance. Context Window - Instantly see the maximum token limit for every model. Modalities - Visual icons indicating support for Text, Image, Audio, or Video (both Input and Output). 4. Generation Alerts Get browser notifications when a generation completes: Works on Battle / Side-by-side / Direct mode - Perfect for long code generations where you've switched to another tab! 5. Column Picker Toggle any column (native or Plus) on or off via the extension popup to keep your view clean and focused.