OpenResponses

A native iOS client for GPT-5.2 and reasoning models. Bring your own API key, stream responses in real time, and access built-in tools--all in a fast, privacy-focused app. Models - GPT-5.2, GPT-5.2-pro, GPT-5.1, GPT-5, and GPT-5-mini - o3 and o4-mini reasoning models with configurable effort - GPT-4.1 family, GPT-4o, and legacy fallbacks Built-in Tools - Web Search: Live answers with clickable citations - Image Generation: Create visuals with gpt-image-1 - Code Interpreter: Run Python in a sandboxed cloud environment - File Search: Query vector stores and uploaded documents Streaming & Inspection - Token-by-token streaming with reasoning indicators - Request Inspector shows every API payload and tool call - Local conversation history with export support Pro Controls - Temperature, max tokens, reasoning effort, and tool routing - Prompt Library to save and reuse configurations - Model compatibility guidance built in Apple Integration - Access Calendar, Contacts, and Reminders via AI tools - SwiftUI interface with Dark Mode and Dynamic Type - VoiceOver and reduced motion fully supported Privacy - API keys stored in the iOS Keychain--never leave your device - No accounts, no analytics, no tracking - All data stays local unless you export it AI output can be inaccurate--always verify important information. Requirements - iOS 17.0 or later - Your own API key with active billing