Comparison
Vapi Alternatives
Vapi is a hosted developer platform for voice agents; teams usually compare alternatives when the bill spans platform, model and telephony components, or when moving to or from a hosted agent abstraction becomes the migration to plan for - and the closest options sit at different layers, so category comes before feature lists.
Short answer
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The candidates, by product boundary
Competitor category and billing statements were checked against official sources on . The table compares product boundaries, not overall quality; a dash means this site publishes no sourced statement for that cell.
| Option | Category | Telephony | Pricing model | Sources |
|---|---|---|---|---|
| Vapithe baseline | Hosted developer platform for voice agents. | Telephony is connected and billed separately from Vapi hosting and orchestration. | Usage-based hosting and orchestration, plus model and telephony charges; BYOK providers can bill directly. | Checked 2026-07-31 |
| Speko Routerour product | Voice model router for STT, LLM and TTS calls. | Not included in the Router boundary. Telephony and WebRTC remain with the application runtime. | USD 0.09 per minute all-in on Speko infrastructure; current terms are kept on the pricing page. | Checked 2026-08-07 |
| Retell AI | Hosted phone-agent platform. | Published options include Retell carrier service and custom SIP, priced as separate components. | Component pricing: voice infrastructure plus selected TTS, LLM, telephony and optional features. | Checked 2026-07-31 |
| Bland AI | Hosted phone automation platform. | Bland supports its own telephony and BYOT. Carrier, transfer and some outbound charges can be separate from connected-minute usage. | Tiered monthly plans plus connected-minute usage. Carrier, BYOT, transfer and some outbound charges can add telephony cost. | Checked 2026-07-31 |
| Pipecat | Open-source framework with an optional managed cloud. | A self-hosted application selects its transport or telephony integration. Pipecat Cloud offers managed deployment around Pipecat workloads. | The framework is open source. Self-hosted model, transport and hosting costs are separate; Pipecat Cloud is a separately priced managed service. | Checked 2026-07-31 |
| LiveKit Agents | Agent framework; the application team owns the conversation loop. | - | - |
The alternatives, one by one
Speko Router
Our product - read this entry as the vendor describing itself.
Speko replaces separate compatible model clients and application-owned selection policy. It does not replace the phone carrier, media transport, turn detector, context, tools or deployment runtime, so it is not a drop-in Vapi replacement.
When to choose it
Choose it when the application already owns the realtime loop and model selection is the boundary to make interchangeable.
Retell AI
Managed phone agents assembled from Retell-supported infrastructure and model components. Telephony and agent operations live in one hosted workflow, and the final rate depends on the selected model, telephony and optional components.
When to choose it
Choose Retell when the requirement is a managed phone-agent product rather than a standalone model-routing API.
Bland AI
Managed phone-call automation, including campaign and call execution inside the Bland product. The product boundary is phone automation, not a provider-neutral model API, so model-level control is bounded by the platform surface.
When to choose it
Choose Bland when the managed phone automation workflow is the product requirement.
Pipecat
Pipecat is a code framework for realtime pipelines; Pipecat Cloud is a separate managed deployment service. Developers wire individual STT, LLM and TTS services in code, or point those services at an external router.
When to choose it
Choose Pipecat for code-level control of the realtime conversation loop; choose Pipecat Cloud when its managed deployment boundary fits.
LiveKit Agents
LiveKit Agents is an agent framework; its own documentation is the source for what it runs, and the application team owns the conversation loop. Speko publishes the @spekoai/adapter-livekit package (0.1.3 on npm) and an integration guide for routing model calls inside that loop.
When to choose it
Choose LiveKit Agents when the team wants to own the runtime on the LiveKit stack.
Which alternative for which team?
A managed platform should still own the agent.+
Compare Vapi with Retell AI: both are hosted products, and the choice is orchestration surface and component pricing, not architecture.
The requirement is outbound phone automation.+
Compare Vapi with Bland AI, whose product boundary is campaign and call execution.
The team wants to own the runtime.+
Move to Pipecat or LiveKit Agents for the conversation loop, and add Speko Router if routed model services are useful inside that loop.
Every non-Speko statement on this page is copied from the sourced comparison this site maintains on the voice agent platforms page; the benchmark snapshot behind Speko routing is published at benchmarks.speko.ai/data.json. There are no rankings here because this site measures models, not platforms.
Choose the layer first. Compare products inside that boundary second.