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Audio & voiceDocumented overviewLast checked Oct 2, 2026

Sparrow-2: Pricing, Features & Best Use Cases

Tavus turn-taking model for conversational video agents, shown via a live demo; used inside the Tavus CVI platform.

Sparrow-2 homepage screenshot, audio & voice AI tool

Our take: Sparrow-2 is a turn-taking model used inside Tavus conversational video agents; try the demo first, and evaluate Tavus pricing if you build on it.

Main limitation: Sparrow-2 is not a standalone product; it works only inside the Tavus platform, and the demo needs microphone access.

By the AI Tool Atlas editors. Based on the vendor's official documentation; we have not tested this product hands-on. What “documented overview” means

Who should use Sparrow-2

Sparrow-2 is a turn-taking model used inside Tavus conversational video agents; try the demo first, and evaluate Tavus pricing if you build on it. Based on the vendor's documentation, not on a hands-on test.

Best for: Developers building Tavus video agents

Also a good fit for

  • Teams evaluating conversational AI turn-taking

Consider another tool if not a standalone product; requires the Tavus platform

Or if

  • No pricing shown on the demo page
  • Demo requires microphone access

Sparrow-2 pricing and usage limits

Prices checked Oct 2, 2026 on the official US pricing page. Official pricing ↗ Prices and limits change often.

Free access and trial conditions

Free live demo; Tavus Basic free tier

Not stated

Paid plans: what changes as you upgrade

Usage caps, credits and extra costs

Pay-as-you-go on Tavus

Not stated

What is Sparrow-2, and how does it work?

Sparrow-2 is a turn-taking model from Tavus. The official page is a live demo where users talk to a Tavus PAL and watch the model detect speech, silence, interruptions and backchannels in real time. It is not a standalone product; developers use it as the turn_detection_model setting in the Conversational Flow layer of the Tavus Conversational Video Interface API.

Sparrow-2 homepage — screenshot of the audio & voice AI tool, Oct 2, 2026
Sparrow-2's official site: how the product presents itself. sparrow2.tavuslabs.org, captured Oct 2, 2026

What you provide and what you get back

How Sparrow-2 works: what you provide, where it runs and what you get backYOU PROVIDEYour inputLive microphone audioConversation flow settingsAUDIO & VOICESparrow-2APIfrom $59/mo (Tavus Starter)free tier availableaccount requiredchecked Oct 2, 2026YOU GET BACKThe resultTurn-taking decisionsResponsive agent timinginput → Sparrow-2 → output · from the vendor's own pages, no hands-on test unless stated
What you give Sparrow-2 and what comes back, from its documentation

You provide

  • Live microphone audio
  • Conversation flow settings

You get back

  • Turn-taking decisions
  • Responsive agent timing

Where you can use it

Platforms
API
Account
Required
Role
Turn-taking model
Detects
Silence, interruptions, backchannels
Config
turn_detection_model in Tavus CVI

Where Sparrow-2 is most useful

Scenarios are worked out by our editors from the documentation; the actual result depends on your input and plan.

Tuning when a voice or video agent should respond

Who
Voice and video agent builders
You provide
Live conversation audio
Expected result
You get an agent that waits for the person to finish and then responds at a natural moment.
Plan needed
Tavus plans
Limitation
It needs the Tavus Conversational Video Interface, so it cannot be used with other platforms. source (opens in a new tab)

Handling user interruptions in AI conversations

Who
Product teams
You provide
Interruptions in a call
Expected result
You get an agent that handles being interrupted instead of talking over the person.
Plan needed
Tavus plans
Limitation
Tuning happens on the platform side, so you adjust it through Tavus rather than in your own code. source (opens in a new tab)

Building conversational video agents on Tavus

Who
Developers
You provide
A turn-detection setting
Expected result
You get a Tavus agent that uses Sparrow-2 as its turn_detection_model setting.
Plan needed
Tavus plans
Limitation
You need to read the Tavus docs to find and set the right option for your agent. source (opens in a new tab)

Key features and their practical limits

Sparrow-2 homepage — screenshot of the audio & voice AI tool, Oct 2, 2026
Feature overview on the official site. sparrow2.tavuslabs.org, captured Oct 2, 2026

Live browser demo with real-time turn-taking events

Shows turn-taking events in a live browser demo. Builders of voice agents can see for themselves how the model reacts when a person speaks and pauses.

Access: Tavus Basic (developer API)Limit: The live demo needs microphone access to work in the browser. source (opens in a new tab)

Detection of silence, interruptions and backchannels

Detects silence, interruptions and backchannels. Agent builders get a conversation partner that tells a pause apart from an interruption or a short acknowledgment.

Access: Not statedLimit: Details are in the Tavus docs and were not itemized on the demo page. source (opens in a new tab)

Room noise and other-voice awareness

Recognizes room noise and other voices. Product teams get an agent that can tell background noise and other voices apart from the person it is talking to.

Access: Not statedLimit: Details are in the Tavus docs and were not itemized on the demo page. source (opens in a new tab)

Configurable as turn_detection_model in Tavus CVI

Sets as turn_detection_model in Tavus CVI. Developers can switch the model on through one setting in the Tavus Conversational Video Interface.

Access: Tavus Basic (developer API)Limit: It works only inside the Tavus platform. source (opens in a new tab)

Sparrow-2 pros and cons

Where Sparrow-2 is strong

  • Free live demo on the official page The official page has a free live demo, so you can hear how the model handles turn-taking before you build anything. documented source (opens in a new tab)
  • Documented configuration in Tavus docs Its configuration is documented in the Tavus docs, so developers can find the setting they need to switch it on. documented source (opens in a new tab)
  • Works within the Tavus conversational video stack It works within the Tavus conversational video stack, so teams already using Tavus do not need a separate integration. documented source (opens in a new tab)

Limitations to check before paying

  • Not a standalone product; requires the Tavus platform It is not a standalone product, so you need the Tavus platform and cannot use the model on its own. documented source (opens in a new tab)
  • No pricing shown on the demo page No pricing is shown on the demo page, so you must check the Tavus plans to learn what using it would cost. documented source (opens in a new tab)
  • Demo requires microphone access The demo needs microphone access, so you cannot try it in a browser where the microphone is blocked or missing. documented source (opens in a new tab)

How to use Sparrow-2 for testing conversational turn-taking

Set up Sparrow-2

  1. Open the Sparrow-2 demo page.
  2. Allow microphone access.
  3. Start the demo session.

Example: testing conversational turn-taking

  1. Talk and pause mid-sentence.
  2. Watch the turn events.
  3. Interrupt the agent.

Review and export the result

  1. Check events match your pauses.
  2. Read the Tavus docs for turn_detection_model.

Sparrow-2 API

API access and separate billing

An API is available, billing not documented. Set turn_detection_model. API documentation ↗

Privacy, data use and commercial rights

Summarized from the vendor's current policies; this is not legal advice and a vendor's badge is not an independent audit.

How your inputs and outputs are handled

Not stated on the pages read

Not stated on the pages read

Not stated on the pages read

Commercial use and plan restrictions

Not stated on the pages read

Not stated on the pages read

Policies: tavus.io/pricing

Other tools to consider instead of Sparrow-2

"Better suited" is based on documented features and pricing, not on a head-to-head test.

ElevenLabs: better suited to

Synthesia: better suited to

Alternatives
AlternativeWhen to choose itPricingLimitation
ElevenLabs——Compare
Synthesia——

Explore Sparrow-2 further

Sparrow-2 pricing, plan by planEvery plan with USD prices, limits and what is free.Best Sparrow-2 alternativesTools for the same job, by need and starting price.Best AI voice generator and audio toolsOur picks in this category, compared by price and free tiers.

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    Sparrow-2 FAQ

    Can I buy Sparrow-2 on its own?

    No, it is used inside the Tavus CVI platform. source (opens in a new tab)

    Is the demo free?

    Yes, a live demo is on the official page. source (opens in a new tab)

    Do I need a microphone?

    Yes, the demo requires microphone access. source (opens in a new tab)

    How much does Tavus cost?

    Basic is free with 25 minutes; Starter is $59 per month plus pay-as-you-go, per the seed notes; full tiers not read. source (opens in a new tab)

    Sources and review methodology

    Official sources and verification dates

    Not verified: Higher Tavus tiers; Privacy; Latency numbers.

    How we documented and maintain this page

    Every fact about Sparrow-2 above comes from the 3 official pages listed here, last compared on Oct 2, 2026; we have not run Sparrow-2 ourselves, so it has no editorial score. How we check and re-check pages.

    Article updated Oct 10, 2026; prices checked Oct 2, 2026. Outbound links to vendors are plain links; we do not earn commissions. How we review · Report an error