LLM API Comparator

Data Security

All prompts, responses, and API keys are stored in your browser's local storage on this device. There is no server-side storage for this tool.

API requests are sent directly from your browser to each LLM provider. There is no intermediary service adding extra security or filtering between you and the provider.

Local Storage Keys

OpenAI → openai_api_key

Anthropic → anthropic_api_key

Gemini → gemini_api_key

OpenRouter → openrouter_api_key

Custom Providers → custom_providers

Selected Models → selected_models_by_provider

Saved Models → *_saved_models

Prompts → saved_system_prompt / saved_conversation_rounds

Stored API Keys