Features
AI Chat
The fastest mode for directly testing a specific model.
In the chat input, choose a model and write a message. You can compare Anthropic Haiku, Sonnet and Opus; OpenAI GPT 5.4, mini and nano; Google Gemini 3.1 Pro, Flash and Flash-Lite; xAI Grok 4.2 and 4.1 Fast; Mistral Small 4 and Large 3; Perplexity Sonar, Pro, Deep Research and Reasoning Pro; or TogetherAI Chinese models.
How to choose a model
Use fast models for short answers, outlines and iteration. Strong models like Opus, GPT 5.4 or Gemini Pro fit deeper analysis. Choose reasoning models when process, math, decisions or error checks matter. You can change model during work and keep context.