Back to Tools
Guidance vs Arena AI
Side-by-side comparison of features, pricing, and ratings
Pricing
Free
Free
Plans
Free (Apache 2.0)
—
Popularity
3.0k views
6.1k views
Skill Level
Advanced
Intermediate
API Available
Platforms
API
Web
Categories
💻 Code & Development
💻 Code & Development🔬 Research & Education🎨 Image Generation
Features
Pythonic interface for language models
Constrained generation with regex and CFGs
Interleave control logic and generation
Generate structured output (JSON, grammar)
Select output from a known list (select())
Offline grammar debugging with Mock model
Capture generated text into named variables
Create custom guidance functions with @guidance decorator
Supports multiple backends (Transformers, llama.cpp, OpenAI)
Reduce latency and cost vs. conventional prompting
Jupyter notebook widget for rich UX
Context free grammar (CFG) constraints
Regular expression constraints
Conditionals and loops in prompt flow
Tool use integration
LLM battle mode head-to-head comparison
Official AI ranking and leaderboard
Search chat submissions
Add files for model evaluation
Real-time battle results
Public community crowd-sourced rankings