Compare AI Models
Side by Side
Compare 500+ AI models via OpenRouter. Send the same prompt to GPT-5, Claude Opus 4, Gemini 2.5, and more - see how they respond and find the best one for your needs.
Side-by-Side Comparison
Compare responses from multiple AI models simultaneously
Everything You Need to Compare AI Models
Model Faceoff gives you the tools to make informed decisions about which AI model works best for your specific use cases.
Side-by-Side Comparison
Send the same prompt to multiple AI models and compare their responses in a split view. See exactly how each model interprets your question.
Real-Time Streaming
Watch responses stream in simultaneously from all models. No waiting around - see which AI responds faster and how they differ.
Response Analytics
Track response times, token counts, and costs across models. Make data-driven decisions about which AI to use for your tasks.
Bring Your Own Keys
Use your own API keys for OpenAI, Anthropic, Google, and more. Your keys stay local - we never see or store them.
Share Comparisons
Found an interesting difference between models? Share your comparison with a link so others can see the results.
Local & Private
Everything runs on your machine. Your prompts and responses never touch our servers - complete privacy guaranteed.
500+ Models via OpenRouter
Powered by OpenRouter - access every major AI model with a single API key. Compare responses from any combination of models instantly.
GPT-5
OpenAI
Claude Opus 4
Anthropic
Gemini 2.5 Flash
Grok 4.1
xAI
Llama 4
Meta
DeepSeek R1
DeepSeek
Qwen 3
Alibaba
500+ Models
via OpenRouter
Plus local models via Ollama for complete privacy
Download Model Faceoff
Available for Mac, Windows, and Linux.
Free and open source on GitHub