Most benchmarks test how well an AI can solve a puzzle. Chatio tests how well it fits into your life. We measure “Assistant Fit”: the ability to offer empathy, follow strict rules, and provide actionable advice when you need it most.
We stopped asking “Is it smart?” and started asking “Is it useful?”
Current language models are incredibly powerful, but academic benchmarks often focus on rote memorization or Math Olympiad capabilities. That doesn't tell you much about how a model will perform as your daily driver.
We built Chatio to capture the nuance of human interaction. We don't care if a model can recite the digits of Pi. We care if it can de-escalate a stressful situation, write a creative email that doesn't sound robotic, and follow your formatting instructions exactly.
LMArena
#1
Gemini 3 Pro
gemini-3-pro
#2
Grok 4.1 Thinking
grok-4-1-thinking
#3
Grok 4.1
grok-4-1
#4
Gemini 2.5 Pro
gemini-2-5-pro
#5
Claude Sonnet 4.0-20240229-Thinking-32k
claude-sonnet-4-0-2024...
Chatio
#1
Gemini 2.5 Pro
gemini-2.5-pro
#2
Claude Opus 4.1
claude-3-opus-20240229
#3
GPT-5
gpt-5
#4
o3
o3
#5
ChatGPT 4o
gpt-4o
Our five evaluation metrics
What we test
From fixing a leaky faucet to planning a schedule. We look for advice that is actually actionable for a layperson.