Building AI voice agents, real-time multiplayer apps, video conferencing features. The default choice for serious AI voice.
Simple async voice calls — Twilio is fine. Pure transcription workflows — go straight to Deepgram or AssemblyAI.
What is LiveKit?
LiveKit became the default infrastructure for real-time AI voice when OpenAI built ChatGPT Advanced Voice Mode on top of it. The open-source SFU + cloud-hosted version handles audio/video streams with sub-200ms latency at scale. Series B raised $45M in 2024. Now powers voice for Character.ai, Anthropic Claude Voice, Spotify, and most serious AI voice products.
Key features
Integrations
What people actually pay
No price data yet — be the first to share
No price data yet for LiveKit. Help the community — share what you pay (anonymized).
The infrastructure layer for serious voice AI
LiveKit owns the real-time audio/video stack for AI voice agents — OpenAI's Realtime API runs on it, ChatGPT Voice runs on it. If you're building voice AI, this is the substrate you build on.
LiveKit's position is unusual: they're infrastructure that the most-watched AI voice products already run on top of. The Agents framework abstracts the WebRTC complexity so AI engineers can build voice agents in Python or Node without becoming media engineers. The same SDKs that power consumer ChatGPT Voice power your Vapi competitor or your in-house healthcare voice agent.
The weakness is what infrastructure weaknesses always are: it's a layer below where most product teams want to think. If you're building a vertical voice agent (sales coaching, drive-thru ordering, customer support), Vapi or Bland will get you to a demo faster because they sit on top of LiveKit and add the application layer you'd otherwise build. The trade is flexibility for speed — LiveKit gives you the substrate; Vapi gives you the product.
Buy LiveKit if you're building voice AI as a core product surface and need control over the audio pipeline, latency, and deployment. Use the open-source server for self-hosted, LiveKit Cloud for managed. Use Vapi or Bland on top of it (or instead of it) if you want a vertical agent shipped this week and don't need pipeline-level control.
Teams building voice AI as a core product surface, with engineering capacity to work at the audio infrastructure layer.
Product teams who want a working voice agent in days — Vapi or Bland sit on top of this and ship faster.
Written by StackMatch Editorial. StackMatch editorial reviews are independent analyst commentary, not user reviews. We have no affiliate relationship with this tool. See user reviews below for community perspective.
Before you buy LiveKit
Vendors don't tell you about their competitors. We do — with verdicts attached when we have them.
What LiveKit actually costs
Sticker price isn't the real cost. We add implementation, training, and a probability-weighted lock-in penalty.
When to negotiate LiveKit
Vendor sales pressure is non-uniform — quarter-close, year-end, and post-funding-round are your high-leverage windows.
Strong negotiation window. Reps will push for end-of-quarter signature. Don't move first — let them initiate the discount. Target 15-30% off list plus negotiated terms.
Take this to your sales call
10 questions vendor sales teams steer around — generated from LiveKit's pricing tier, lock-in profile, and editorial verdict.
- 1PRICINGLiveKit is professional-tier on the public site. What's the discount path for small-sized teams committing annually vs. monthly?
- 2PRICINGWhat overages or seat-overflow charges should we plan for? Show me the worst-case bill if our usage grows 2x in year 1.
- 3CONTRACTAuto-renewal: how many days notice is required to terminate, and what happens if we miss the window? Will you commit to a renewal-reminder email at 90 and 60 days?
- 4MIGRATIONData export: what's the complete spec — format, frequency, and what data does the export NOT include? After contract end, how long do we have read-only access?
- 5MIGRATIONImplementation runs 1-2 weeks. Who from your team is included by default, and who do we add at additional cost? Is a CSM assigned?
- 6FITLiveKit is best for: Teams building voice AI as a core product surface, with engineering capacity to work at the audio infrastructure layer.. We're [describe your situation]. Walk me through the failure modes if our profile doesn't match.
- 7FITConnect us with 2-3 reference customers at our company size in SaaS — not the case-study list, customers who've been live for 18+ months and have churned at least one tool from your stack.
- 8INTEGRATIONLiveKit lists 5 integrations including OpenAI Realtime API, Anthropic, Deepgram. Which of OUR existing tools — bring our list — have you confirmed shipping integration with versus "on roadmap"? Show me the actual status.
- 9VENDORTrack record over the last 18 months: any pricing model changes, executive departures, layoffs, M&A activity, or material customer churn we should know about?
- 10VENDORIf you're acquired or shut down, what's the contractual continuity — source-code escrow, data portability, transition period? Show me the actual clause.
What to actually test in the demo
Vendor sales teams script demos to maximize close rate. Here's what they'd rather you not test — derived from LiveKit's lock-in profile and editorial verdict.
- 1PERFORMANCEBring YOUR data, not their demo data. Insist on running the demo workflow against a sample of your real records, files, or queries. If they refuse — that's a signal.
- 2PERFORMANCELiveKit demo will be built around the happy path. Ask: "Show me what happens when [the most common failure mode in our context]" — make them improvise.
- 3EDGE CASESPush the limits live: largest dataset, longest workflow, most users concurrent. Vendors prep demos for medium loads — your real-world usage might 10x what they show.
- 4EDGE CASESMobile and offline behavior: how does LiveKit degrade on slow connections, on iPad, in airplane mode? Test in the demo if your team uses these surfaces.
- 5PRICINGModel your worst-case bill: 2x the seats, 3x the usage. Show the exact dollar figure on screen during the demo. Refuse "we'll get back to you" — get the math live.
- 6INTEGRATIONVendors love their integration logo wall. Test the actual depth: pick the 2-3 (OpenAI Realtime API, Anthropic-style) integrations you depend on most, and ask the rep to demo a real two-way data sync, not a marketing screenshot.
- 7INTEGRATIONAPI and webhook reality check: rate limits, payload size limits, retry behavior, auth refresh handling. Ask for actual API docs in the demo, not "we'll send those."
- 8MIGRATIONDemo the full data export workflow. Even with low lock-in, you want to see how clean the exit looks before signing.
- 9SUPPORTSubmit a real support ticket DURING the demo. Use the actual support channel customers use, not the rep's email. Time the response. This is your most honest data point about post-sale reality.
- 10SUPPORTAsk to be connected with a customer in the demo who you can email TODAY (not "we'll arrange a reference call next week"). The vendor's confidence in their references is a tell.
User Reviews
Be the first to review this tool