gpt-live
GPT-Live now powers ChatGPT Voice for paid and free users
OpenAI released GPT-Live voice models for full-duplex conversation workflows.
Verify official source →Updated August 2026
Sesame vs GPT-Live: Which AI Voice Assistant Feels More Human?
GPT-Live is the broader ChatGPT Voice system for translation, search and reasoning; Sesame is a free-preview personal voice experience centered on distinct agents and conversational presence.
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Recent GPT-Live and Sesame changes
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Best Fit 2026
Best choice depends on use case
Use the verdict below to match each tool to your workflow.
GPT-Live
Freemium4.6
GPT-Live is OpenAI's full-duplex voice model family for ChatGPT Voice. It can listen and speak with more continuous timing, and GPT-Live-1 can delegate search or deeper reasoning to GPT-5.5. OpenAI launched GPT-Live-1 for eligible paid consumer plans and GPT-Live-1 mini for free users; API access was still described as coming soon at our July 17 review cutoff.
Latest verified update · 2026-07-09
GPT-Live now powers ChatGPT Voice for paid and free users
OpenAI released GPT-Live voice models for full-duplex conversation workflows.
Best For
Live translationLanguage learningSearch and reasoningMultimodal ChatGPT workflowsEveryday voice assistance
Pros
- ✓Full-duplex voice supports more natural overlapping speech and turn-taking
- ✓Can delegate web search and deeper reasoning to GPT-5.5
- ✓Strong fit for live translation, language practice, and information-heavy tasks
- ✓Available across ChatGPT web, iOS, and Android
- ✓Published safety documentation and safeguards for younger users
Cons
- ✗Still feels more like a highly capable assistant than a persistent character
- ✗Agora's controlled test found it slower to yield after an interruption than the previous voice mode
- ✗No video or screen sharing at launch
- ✗API access was announced as coming soon rather than generally available
- ✗Launch availability excluded Business, Enterprise, and Edu workspaces
Sesame
Free4.5
Sesame is a conversational voice preview built around four persistent agents — Maya, Miles, Simone, and Charlie — with distinct voices, personalities, points of view, and separate memories. It combines calls and texting with search, deep research, notes, reminders, and post-call summaries, but remains a younger product with stricter call limits and narrower platform availability.
Best For
Open-ended conversationHuman-like voice presencePersistent personalitiesReflective or companion-style chatsUsers who value conversational chemistry
Pros
- ✓Four agents have distinct voices, personalities, perspectives, and memories
- ✓Independent hands-on reviews repeatedly praise its human-like pacing and conversational presence
- ✓Can search in the background without completely breaking conversational flow
- ✓Supports calls, texting, notes, reminders, deep dives, and post-call summaries
- ✓Incognito mode prevents a conversation from creating new memory
Cons
- ✗Logged-in calls are capped at 30 minutes and anonymous calls at 5 minutes, though a new call can start immediately
- ✗No comparable public controlled benchmark against GPT-Live is available
- ✗Android access remains a beta/preview rather than a fully mature release
- ✗Agent personalities can feel overly eager, and interruption timing is not always consistent
- ✗A stable paid pricing structure and general developer API were not publicly documented at review time
Feature-by-Feature Comparison
| Feature | GPT-Live | Sesame |
|---|---|---|
| Free access | GPT-Live-1 mini through ChatGPT Free | Full preview experience currently free |
| Paid access | Go regional; Plus $20/month; Pro $200/month | No public paid plan |
| Call limits | ChatGPT plan-specific limits | 30 minutes logged in; five minutes anonymous; restart immediately |
| Primary strength | Translation, search and reasoning | Distinct personalities and conversational presence |
| Developer access | General GPT-Live-1 API coming soon | No general public API documented |
Our Verdict
Choose GPT-Live for practical voice work inside ChatGPT. Choose Sesame for a personality-led conversational preview. Neither exposes a standalone public API price today.
Choose GPT-Live if…
Choose GPT-Live if the conversation has a job to do. It is the stronger option for real-time translation, language practice, current information, reasoning, and tasks that benefit from the rest of ChatGPT. Its main advantage is capability breadth, not character.
Choose Sesame if…
Choose Sesame if the feeling of the conversation matters most. Its named agents, persistent personalities, voice performance, and memory create a stronger sense of talking with someone rather than operating an assistant. Accept the preview-stage limits and less mature platform coverage.
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Current pricing
Tool-page data verified 2026-08-25GPT-Live: ChatGPT Free access: $0 / month · ChatGPT Go access: Regional pricing · ChatGPT Plus access: $20 / month · ChatGPT Pro access: $200 / month
Official access and ChatGPT pricing verified 2026-08-25. GPT-Live has no separately listed ChatGPT add-on price: Free uses GPT-Live-1 mini; Go uses regional pricing; Plus is $20/month; Pro is $200/month. Limits vary by plan. General GPT-Live-1 API access and standalone API pricing are not yet published.
Sesame: Mobile and Research Preview: $0 / preview
Official preview terms verified 2026-08-25. The full experience is free during the initial rollout. Logged-in mobile/web calls are capped at 30 minutes; anonymous calls at five minutes; calls can restart immediately. No public paid tier or general developer API is listed.
This block follows the current pricing data shown on each tool page. Editorial ratings and verdicts are reviewed separately.
Sources & Methodology
This is an editorial synthesis, not a laboratory score. We prioritized first-party product documentation for availability and features, then used independent hands-on reviews for subjective voice quality. Agora's latency results are useful controlled measurements but come from a real-time communications vendor, so we treat them as vendor research rather than neutral certification. Community reports were checked for recurring themes but were not used as primary evidence. No authoritative standardized Sesame-vs-GPT-Live benchmark was publicly available at the review cutoff.
- OpenAI — Introducing GPT-Live ↗
Official launch details, access, capabilities, limitations, and safety links.
- Sesame — Getting Started ↗
Official guide to agents, memory, search, notes, platforms, and call limits.
- Sesame — Mobile Preview ↗
Official current availability page for the iOS preview and Android beta.
- PCWorld — Sesame hands-on review ↗
Independent long-form assessment of naturalness, background search, usefulness, and emotional-design concerns.
- Ars Technica — Sesame 28-minute hands-on ↗
Independent early test and founder comments on pacing, tone, eagerness, and interruption timing.
- Agora — GPT-Live latency and interruption test ↗
Controlled vendor testing of latency consistency, interruptions, background speech, and packet loss.
- Tom's Guide — GPT-Live translation hands-on ↗
Independent hands-on use of continuous live translation and visual response cards.
Frequently Asked Questions
Is Sesame still free?
Yes during the initial preview rollout; Sesame has not published a stable paid tier.
Is GPT-Live a separate subscription?
No separate ChatGPT add-on is listed. GPT-Live-1 mini powers Free, while GPT-Live-1 is included for Go, Plus and Pro.