Independent-fit framework with a clear MediaSFU disclosure
Buyer's guide / Updated July 2026
Best Vapi Alternatives in 2026
Vapi is a capable voice-agent orchestration layer, but its advertised ~$0.05/min platform fee is only part of the bill — STT, LLM, TTS, and telephony are added on top, so real all-in costs often land at $0.13–$0.31 per minute. Here are seven alternatives worth evaluating, from unified platforms to no-code builders.
7 credible options4 decision lensesDirect source links
Third-party rates are published or advertised figures. Verify them against current Vapi pricingand model your own traffic, providers, support, and migration effort.
Concrete volume lens
At 100,000 agent minutes plus phone audio / month
Use the same published assumptions as the detailed comparison calculator.
Scope: Compares MediaSFU agent and phone-audio infrastructure with Vapi hosting. Add the same STT, LLM, TTS, and carrier route to both estimates.
Adjust the exact workloadWhy teams reopen the shortlist
Validate these buying pressures before replacing a platform.
Total per-minute cost grows quickly once provider fees stack on the orchestration fee.
Voice agents are the whole product — meetings, widgets, translation, and team calling need extra vendors.
Teams without engineers can struggle with an API-first setup path.
Shortlist by the outcome you need
Start with fit, then validate price and implementation detail.
Complete workflow
MediaSFU
Teams that want voice agents and the rest of the communication stack on one bill
Review this optionSpecialist path 01Retell AI
Teams building phone-based support or sales agents with a managed stack
Review this optionSpecialist path 02Synthflow
Non-technical teams that want subscription pricing instead of pure usage billing
Review this optionComparable at a glance
7 Vapi alternatives worth evaluating
Pricing is a starting signal, not a total-cost estimate.
| Option | Best fit | Pricing posture | Trade-off to validate |
|---|---|---|---|
| 01MediaSFUComplete stack | Teams that want voice agents and the rest of the communication stack on one bill | Agent infrastructure $0.002/min; audio transport $0.0001/min; BYOK — AI and SIP provider costs stay direct with no markup. | Smaller community than the largest voice-AI-only platforms |
| 02Retell AI | Teams building phone-based support or sales agents with a managed stack | Usage-based; published combined voice-agent rates typically start around $0.07/min. | Voice agents only — no meetings, widgets, or broader RTC surface |
| 03Synthflow | Non-technical teams that want subscription pricing instead of pure usage billing | Plans from around $29/month with bundled minutes; overage rates apply. | Less flexible for custom pipelines or deep integrations |
| 04Bland AI | High-volume outbound calling with a self-serve API | Advertised around $0.09–$0.11 per talk minute depending on plan and bundling. | Bundled per-minute rate is among the higher published rates |
| 05ElevenLabs Agents | Products where voice quality is the primary differentiator | Published additional-call rates around $0.08/min on paid tiers. | Locked to the ElevenLabs voice stack |
| 06Telnyx | Teams that want to own telephony at the carrier level | Carrier per-minute rates plus AI usage; competitive at high PSTN volume. | More telecom-shaped than product-shaped; steeper setup |
| 07LiveKit Agents | Engineering teams that want open-source control and are ready to build | Open source self-host is free; LiveKit Cloud is usage-based. | You assemble the product yourself — telephony, workflows, and UI are your job |
Strengths, trade-offs, and proof paths
Open the official source for every candidate before committing budget.
01
MediaSFU pickComplete-stack recommendation
MediaSFU
Unified real-time platform: AI voice agents plus meetings, cloud phone, translation, and widgets
Transparent disclosure: MediaSFU is our platform. We keep this entry factual and provide published pricing paths so you can verify the fit.
Why it makes the shortlist
- Agent infrastructure at $0.002/min — roughly 25x below Vapi’s published $0.05/min platform rate
- BYOK: pay your STT, LLM, TTS, and SIP providers directly with no markup
- Includes meetings, live translation, click-to-call widgets, recording, transcripts, and 10 SDKs
- No-code paths (Phone Agents Studio, Widget Studio) alongside full API/SDK control
Validate before choosing
- Smaller community than the largest voice-AI-only platforms
- Broader platform surface means more concepts to explore than a single-purpose tool
02
Shortlist option
Retell AI
Voice-agent platform focused on contact-center style deployments
Why it makes the shortlist
- Strong conversation flow tooling
- Batch calling and contact-center features
- Managed provider stack option
Validate before choosing
- Voice agents only — no meetings, widgets, or broader RTC surface
- Per-minute platform fee scales with volume
03
Shortlist option
Synthflow
No-code AI voice agent builder
Why it makes the shortlist
- Genuinely no-code setup
- Predictable subscription pricing at low volume
- Templates for common receptionist flows
Validate before choosing
- Less flexible for custom pipelines or deep integrations
- Bundled-minute plans get expensive at scale
04
Shortlist option
Bland AI
Developer API for scaled outbound and inbound phone agents
Why it makes the shortlist
- Simple API surface for phone agents
- Self-hosted-model story for enterprise
- Fast to prototype outbound flows
Validate before choosing
- Bundled per-minute rate is among the higher published rates
- Narrow product scope beyond phone calls
05
Shortlist option
ElevenLabs Agents
Conversational agents built around ElevenLabs voices
Why it makes the shortlist
- Best-in-class TTS voices
- Tight integration between voice models and agent runtime
- Growing tools ecosystem
Validate before choosing
- Locked to the ElevenLabs voice stack
- Telephony and workflow features are newer than dedicated platforms
06
Shortlist option
Telnyx
Carrier-grade network with voice AI on top
Why it makes the shortlist
- Owns its network — strong call quality and global numbers
- Deep SIP trunking control
- Competitive PSTN rates
Validate before choosing
- More telecom-shaped than product-shaped; steeper setup
- Agent tooling is younger than voice-AI-first platforms
07
Shortlist option
LiveKit Agents
Open-source WebRTC infrastructure with an agents framework
Why it makes the shortlist
- Open source, self-hostable
- Flexible Python/Node agents framework
- Strong real-time media foundation
Validate before choosing
- You assemble the product yourself — telephony, workflows, and UI are your job
- Cloud costs grow with session minutes
An honest counterweight
When staying with Vapi makes sense
Migration should produce enough upside to justify the operational work.
- You want a voice-agent-first developer platform with a large ecosystem of examples.
- Your surrounding communication stack (meetings, telephony operations) already exists elsewhere.
- Per-minute platform fees are acceptable at your volume.
How to evaluate the finalists
Product surface
Count every additional product required for calls, meetings, widgets, translation, and retained artifacts.
Total economics
Model platform, provider, carrier, storage, support, and engineering costs at your real volume.
Team fit
Test operator and non-developer paths as carefully as the API and SDK experience.
Operational control
Validate ownership of numbers, keys, domains, recordings, webhooks, and migration data.
Frequently asked questions
01What is the cheapest Vapi alternative?
On published infrastructure rates, MediaSFU is among the lowest at $0.002 per agent minute plus $0.0001 per audio minute, with AI provider costs paid directly (BYOK). Always model your own minute volume, provider mix, and call routes — bundled platforms can be simpler at very low volume.
02Why do Vapi bills end up higher than $0.05/minute?
Vapi’s ~$0.05/min covers orchestration only. Speech-to-text, LLM tokens, text-to-speech, and telephony are billed on top, which commonly brings real all-in costs to $0.13–$0.31 per minute depending on the provider mix.
03Can I keep my phone numbers and SIP trunks when switching?
Usually yes. Platforms like MediaSFU and Telnyx support bringing your own SIP trunks and numbers; verify routing and regional constraints during a migration test before cutover.
04Which alternative is best for non-developers?
Synthflow is the most no-code option. MediaSFU also offers no-code paths (Phone Agents Studio and Widget Studio) while keeping SDK and API depth for when engineers get involved.
05Do any alternatives include more than voice agents?
MediaSFU is the broadest: voice agents plus video meetings, live translation, cloud phone, recording, transcripts, and embeddable widgets on one platform. Most other Vapi alternatives are voice-agent-only.
Validate MediaSFU against a real workload.
Run a live experience, inspect the pricing model, or open the detailed head-to-head guide before you commit.