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Inthread AI

Claude, GPT, Gemini, Grok and Perplexity, already inside iMessage, your Apple Watch, and every Chrome tab.

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Description

Claude, GPT, Gemini, Grok and Perplexity, already inside iMessage, your Apple Watch, and every Chrome tab. One account. No app switch.

About Inthread AI

What is Inthread AI?

Inthread AI is an AI assistant application that integrates Claude, GPT, Gemini, Grok, and Perplexity into iMessage, Apple Watch, and Chrome.

What Inthread AI does

The app provides inline AI replies in iMessage, voice dictation and prompt answers on Apple Watch, and page-context assistance in Chrome across web tools like Gmail and Slack without switching apps.

Who Inthread AI is for

iPhone, Apple Watch, and Chrome users who want quick access to AI models directly inside conversations and browser tabs.

How Inthread AI works

Users install the iMessage keyboard extension, Apple Watch app, or Chrome extension, connect their own API keys or use managed access, and dictate or type prompts inline.

Key features

  • Integrates 18 models across 5 AI providers: Anthropic, OpenAI, Google, xAI, and Perplexity.
  • Native iMessage keyboard extension to type or dictate prompts without leaving chat threads.
  • Native Apple Watch app with text and voice dictation support on watchOS 7 or later.
  • Chrome extension for browser tabs including Gmail, LinkedIn, and Slack with screenshot support.
  • Supports Bring Your Own Key with zero markup over provider rates.
  • Keys are encrypted on your device with a passphrase using AES-256-GCM before syncing.
  • Retrieves live web facts and cites sources inline using Perplexity Sonar.

Pricing

As listed on inthread.ai, checked 8 November 2026. Prices can change; see the site for current terms.

  • Free: $0 forever for full Inthread on every surface when bringing your own API keys.
  • Pro: $10/mo intro offer ($20/mo after) with managed access to all 5 providers.

Facts from inthread.ai, checked 8 November 2026

  • Supports 18 models across 5 providers: Anthropic, OpenAI, Google, xAI, and Perplexity.
  • Operates across three surfaces: iMessage, Apple Watch, and Chrome browser tabs.
  • Encrypts keys on your device using AES-256-GCM before syncing.
  • Requires watchOS 7 or later on Apple Watch Series 4 and newer.

Written from Inthread AI's own website (Homepage, Docs). The maker can claim this listing to edit it.

Categories

AI & Machine LearningMobile Apps

Frequently asked questions

Does Inthread read my iMessage conversations?

No. Inthread functions as a keyboard extension and only processes the specific prompts you explicitly enter into its input field.

How does Bring Your Own Key (BYOK) work?

Users can input their existing API keys from Anthropic, OpenAI, Google, xAI, or Perplexity to pay providers directly.

How does Inthread work on Apple Watch?

The Apple Watch app lets you select an AI model, dictate or type prompts, and send responses or hand them off to your iPhone.

How are API keys secured across devices?

Keys remain on your device by default, or are encrypted with a passphrase using AES-256-GCM before syncing to Chrome.

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