AI Tool WatchSpeak Back in Real Time
Can respond with live or near-live speech in a conversational flow.
This page tracks AI tools that currently support speak back in real time. Unlike marketing claims, inclusion here requires verified functionality. As of August 2026, 5 products support this, and support has changed in recent months.
Definition
What counts
- back-and-forth spoken conversation
- real-time voice replies
- low-latency live voice modes
What doesn't count
- downloadable audio only
- delayed audio generation without conversation
Product Availability (5 products)
ChatGPT
Advanced Voice Mode
Advanced voice is now **available on every plan, including free**—OpenAI's GPT-Live replaced the old Advanced Voice Mode as the default, with GPT-Live-1 mini for free accounts and GPT-Live-1 for paid. Free users get it on **web and mobile**; **voice in the macOS and Windows desktop apps is paid-only** and returned in July 2026 after being retired in January.
Access: mixed
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Go | ✓ | |
| Plus | ✓ | |
| Pro | ✓ | |
| Business | ✓ | |
| Enterprise | ✓ |
Surfaces: Windows macOS iOS Android web API
Verified: 2026-08-15
Microsoft Copilot
Copilot Voice
Copilot Voice is **available on all tiers including free**. You can speak to Copilot on desktop, mobile, and web.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Copilot Pro | ✓ |
Surfaces: Windows macOS iOS Android web
Verified: 2026-03-22
Gemini
Gemini Live (Voice Mode)
Gemini Live enables natural voice conversations with Gemini. **Basic voice is free; full Gemini Live with interruption and multi-turn requires AI Pro ($19.99/mo).** Currently mobile only.
Access: paid
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| AI Pro | ✓ |
Surfaces: iOS Android API
Verified: 2026-02-28
Project Astra
Project Astra brings real-time vision to Gemini—share your camera or screen and get contextual AI assistance. **Now free for everyone** on iOS and Android. It can remember context for 10+ minutes and integrates with Google Search, Maps, and more.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| AI Pro | ✓ |
Surfaces: iOS Android
Verified: 2026-02-28
Grok
Grok Voice Mode
Grok Voice Mode allows natural voice conversations with Grok. **Now free for all users** on iOS, Android, and web (grok.com) with 11 voice modes. TTS API available for developers with 5 voice personalities. Supports attachments and photos in voice conversations (Mar 2026).
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Premium | ✓ | |
| Premium+ | ✓ | |
| SuperGrok | ✓ |
Surfaces: iOS Android web API
Verified: 2026-03-21
Perplexity
Voice Mode
Perplexity Voice allows hands-free search on mobile. **Available on all tiers including free**—just tap the microphone in the app.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Pro | ✓ | |
| Max | ✓ |
Surfaces: Windows macOS iOS Android web
Verified: 2026-04-08
Also Known As
voice output, text to speech, AI voice, voice response, talk back, spoken answers