ThatLLM lets you compare responses from multiple AI models simultaneously. Test the same prompt across OpenAI models, Gemini, Claude, Perplexity, and Grok to see which one gives you the best results. Perfect for developers, researchers, and AI enthusiasts who want to make informed decisions about which model to use for their specific needs. Stop switching between platforms and get side-by-side comparisons in real-time.

LLM-Navigator: Professional tool for comparing AI language models across OpenAI, Anthropic, Google, Mistral, and DeepSeek. Calculate costs for tokens, words, or characters with detailed analysis.