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 October 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: 2026-09-28
Microsoft Copilot
Copilot Voice
Copilot Voice is **free once you sign in**, subject to capacity. Subscribers get both priority and a published daily allowance: **30 minutes a day on Microsoft 365 Personal and Family, 60 minutes a day on Premium**. **Copilot Pro is closed to new customers; existing subscribers can continue or switch to Microsoft 365 Premium.** Speak to Copilot on Windows, Mac, mobile, and the web. This table covers plans available to new customers; legacy Copilot Pro feature entitlements need separate review.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Microsoft 365 Personal | ✓ | |
| Microsoft 365 Family | ✓ | |
| Microsoft 365 Premium | ✓ |
Surfaces: Windows macOS iOS Android web
Verified: 2026-09-05
Gemini
Gemini Live (Voice Mode)
Gemini Live is Google's real-time voice mode in the Gemini mobile app, with interruption and back-and-forth built in. **Included on the free plan. Google AI Plus ($4.99/mo), Google AI Pro ($19.99/mo) and Google AI Ultra raise usage limits (2x, 4x, up to 20x); Daily Brief inside Live starts at Google AI Plus and Gemini Spark inside Live starts at Google AI Pro.** You can also share your camera or screen during a Live chat so Gemini can see what you see. Android and iOS only — Google's help pages say it isn't available in the Gemini web app.
Access: free
| Plan | Available | Notes |
|---|---|---|
| Free | ✓ | |
| Google AI Plus | ✓ | |
| Google AI Pro | ✓ | |
| Google AI Ultra | ✓ |
Surfaces: iOS Android API
Verified: 2026-09-11
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