# Speko vs Vapi

Speko records 20,954 monthly visits with -7.9% month-over-month growth and Paid, Contact for Pricing pricing. Vapi records 662,301 monthly visits with -11.4% growth and Freemium pricing.

| Metric | [Speko](https://openaitools.app/tool/speko) | [Vapi](https://openaitools.app/tool/vapi) |
| :--- | :--- | :--- |
| Website URL | https://speko.ai | https://vapi.ai |
| Categories | AI API, AI Speech-to-Text, AI Text-to-Speech, AI Agent | AI Agent, AI API, AI Voice Assistants, AI Developer Tools |
| Pricing Model | Paid, Contact for Pricing | Freemium |
| Monthly Visits | 20,954 | 662,301 |
| MoM Growth Rate | -7.9% | -11.4% |
| Primary Market | United States | United States |
| Direct Visits | 5,932 | 377,321 |
| Review Score | 4.4 | 4.5 |
| Saved Count | 0 | 2 |
| Supported Platforms | Website | Website |

## Speko

The core idea is that no single speech model wins everywhere. Speko's benchmark shows six different models taking the top spot across 18 languages, and notes that a large share of models are only ever measured in English, leaving their ranking in other languages unknown. Instead of committing to one vendor, Speko routes each stage of a voice pipeline — STT, LLM and TTS — to whichever model performs best for the language your users actually speak, with measured selection and failover before the response starts.

Two commercial shapes are offered. On Speko infrastructure you pay a single bundled rate of $0.09 per minute covering all three legs. Alternatively, managed routing adds 5% on top of a provider's published rate and lets you use your own provider keys, in which case the provider bills you directly. The router is hosted at router.speko.dev with typed contracts and public OpenAPI and AsyncAPI documentation.

The platform layer targets teams that need working phone agents, not just model access. You can map a call step by step, connect calendars, CRMs, your own APIs and documentation into any step, buy a phone number, test drafts against simulated callers including adversarial ones, and score every live call against checks you write in plain language. Native integrations exist for LiveKit and Pipecat, and an MCP server exposes Speko to Claude, ChatGPT, Grok, Cursor and Claude Code. Speko states it is backed by Y Combinator and that new accounts receive $10 in credit.

**Pricing & Plans:** Two models. On Speko infrastructure, a flat $0.09 per minute bundles STT, LLM and TTS; calls bill from answer to hang-up and unanswered calls cost nothing. With managed routing, you pay the selected provider's published rate plus 5%. $10 in signup credit applies to every account. Phone numbers cost $1 setup and $2 per month for most numbers, and calls on Speko numbers add the carrier charge plus 20%.

- **Language-aware model routing:** STT, LLM and TTS are selected per language based on an independent benchmark covering 89 models across 18 languages, with pre-response failover.
- **Voice agent platform:** Design a call step by step, plug calendars, CRMs, your APIs and docs into any step, then run it with inbound, outbound and call-list support.
- **Simulated caller testing:** Draft agents are tested against simulated callers, including red-team scenarios that try to break the flow, before they go live.
- **Plain-language call scoring:** Every live call is scored against checks you write in everyday language, for example reading back a date or never quoting a price.
- **Framework and MCP integrations:** Native Gateway services for LiveKit and Pipecat, plus an MCP server for Claude, ChatGPT, Grok, Cursor and Claude Code.

**Strengths:** Independent, language-by-language benchmark rather than a single accuracy claim; Provider-neutral routing with the option to bring your own keys; Clear, simple pricing: $0.09 per minute bundled or 5% on routed provider spend; Agent platform includes phone numbers, evaluation and live call monitoring

**Limitations:** Public preview with no SLA and email-only support outside enterprise; The benchmark and model catalogue move quickly, so routing decisions need periodic review; Telephony costs sit on top of the per-minute rate, and international routes can exceed the US minimum

[Profile (Markdown)](https://openaitools.app/tool/speko.md)

## Vapi

Vapi gives engineering teams a managed stack for real-time voice agents. Rather than stitching together a speech-to-text provider, an LLM, a text-to-speech vendor and a telephony carrier, teams configure those pieces through Vapi's API and dashboard. The platform handles the low-latency orchestration, barge-in handling, and call routing that make a natural back-and-forth conversation possible.

Beyond the raw API, Vapi ships observability and evaluation tooling: call logs, transcripts, effectiveness and compliance monitoring, and call simulation so agents can be tested before they reach customers. Integration hooks let agents read and write to CRMs, calendars, ticketing systems and internal APIs, which is what turns a demo bot into a working support or scheduling agent.

Vapi targets both individual builders who start on free credits and enterprises that need contractual SLAs, SSO/OAuth/RBAC, HIPAA-eligible handling and dedicated engineering support. Pricing is metered by the minute, with model costs passed through at provider rates.

**Pricing & Plans:** Usage-based. New accounts get $5 in free credits; Vapi hosting is prepaid at about $0.05/min with transcription, LLM and voice billed as pass-through provider costs. Optional success packages: Core at $29/month, Pro at 10% of hosting fees with a $999/month minimum, and a custom Premier tier for enterprises. Add-ons include extra concurrency at $10/line/month and HIPAA handling at $2,000/month.

- **Unified voice agent API:** Configure speech recognition, an LLM reasoning layer and text-to-speech through one API instead of integrating several vendors separately.
- **Managed low-latency orchestration:** The platform handles real-time audio streaming, interruption handling and call state so conversations feel natural and responsive.
- **Built-in telephony and numbers:** Provision Vapi phone numbers or bring Twilio, Vonage or Telnyx, and support both inbound and outbound calling from the same agent.
- **Testing and observability:** Simulate calls before launch, then track transcripts, effectiveness metrics and compliance signals across every production call.
- **Enterprise controls:** SOC 2, HIPAA and PCI aligned options, SSO, OAuth2, RBAC, zero data retention, uptime SLAs and dedicated deployment support.

**Strengths:** API-native design with full control over models, prompts and voices; Real-time infrastructure, telephony and monitoring handled for you; Transparent pricing with model costs passed through at provider rates; Strong enterprise feature set including compliance, SSO, RBAC and SLAs

**Limitations:** Total cost climbs quickly because hosting, models and transport are billed separately; The Pro success package has a high $999/month minimum; Advanced configuration assumes real development resources

[Profile (Markdown)](https://openaitools.app/tool/vapi.md)

## Frequently Asked Questions

### How do Speko and Vapi compare in monthly traffic?

Speko has 20,954 monthly visits, while Vapi has 662,301. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Speko has a month-over-month growth rate of -7.9%; Vapi has -11.4%.

### How does pricing compare?

Speko: Paid, Contact for Pricing. Two models. On Speko infrastructure, a flat $0.09 per minute bundles STT, LLM and TTS; calls bill from answer to hang-up and unanswered calls cost nothing. With managed routing, you pay the selected provider's published rate plus 5%. $10 in signup credit applies to every account. Phone numbers cost $1 setup and $2 per month for most numbers, and calls on Speko numbers add the carrier charge plus 20%. Vapi: Freemium. Usage-based. New accounts get $5 in free credits; Vapi hosting is prepaid at about $0.05/min with transcription, LLM and voice billed as pass-through provider costs. Optional success packages: Core at $29/month, Pro at 10% of hosting fees with a $999/month minimum, and a custom Premier tier for enterprises. Add-ons include extra concurrency at $10/line/month and HIPAA handling at $2,000/month.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [OpenAI Platform](https://openaitools.app/tool/openai) | 234,678,639 | -9.6% | Paid | Provides raw frontier language models and real-time multimodal capabilities, requiring custom scaffolding compared to Vapi's voice workflows. | [.md](https://openaitools.app/tool/openai.md) |
| 2 | [Google AI Studio](https://openaitools.app/tool/google-ai-studio) | 112,620,020 | +2% | Freemium | Offers developer access to Gemini's powerful multimodal APIs, but lacks out-of-the-box telephony voice agent pipelines. | [.md](https://openaitools.app/tool/google-ai-studio.md) |
| 3 | [ElevenLabs](https://openaitools.app/tool/elevenlabs-io) | 42,396,771 | +26.1% | Freemium, Paid, Contact for Pricing | Industry leader in ultra-realistic voice cloning and text-to-speech, now offering robust conversational voice agent capabilities. | [.md](https://openaitools.app/tool/elevenlabs-io.md) |
| 4 | [Cartesia](https://openaitools.app/tool/cartesia-ai) | 1,782,707 | +49.7% | Contact for Pricing | Provides ultra-low latency text-to-speech and managed voice agents via developer API, rivaling Vapi's audio speed. | [.md](https://openaitools.app/tool/cartesia-ai.md) |
| 5 | [Deepgram Voice AI](https://openaitools.app/tool/deepgram-voice-ai) | 863,852 | +31.8% | Free Trial | Delivers robust real-time speech-to-text and voice agent APIs, though with less telephony-specific orchestration than Vapi. | [.md](https://openaitools.app/tool/deepgram-voice-ai.md) |
| 6 | [Xiaomi MiMo](https://openaitools.app/tool/xiaomi-mimo) | 823,818 | -39.9% | Contact for Pricing | Xiaomi's multimodal model family for reasoning, vision and voice | [.md](https://openaitools.app/tool/xiaomi-mimo.md) |
| 7 | [AssemblyAI](https://openaitools.app/tool/assemblyai) | 453,591 | -6.9% | Freemium, Contact for Pricing | Provides enterprise-grade speech-to-text and audio intelligence APIs, but lacks turnkey conversational voice agent telephony orchestration. | [.md](https://openaitools.app/tool/assemblyai.md) |
| 8 | [Soniox](https://openaitools.app/tool/soniox) | 335,647 | +2.2% | Paid | One speech AI API for recognition, generation, and translation in 60+ languages | [.md](https://openaitools.app/tool/soniox.md) |
| 9 | [Bland AI](https://openaitools.app/tool/bland-ai) | 243,601 | +7.4% | Paid, Contact for Pricing | Enterprise voice AI platform specializing in high-volume outbound and inbound phone calls with robust telephony integrations. | [.md](https://openaitools.app/tool/bland-ai.md) |
| 10 | [Eden AI](https://openaitools.app/tool/eden-ai) | 173,828 | +6.5% | Paid, Contact for Pricing | One API gateway and LLM router for around 1,000 AI models | [.md](https://openaitools.app/tool/eden-ai.md) |

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Source: https://openaitools.app/compare/speko-vs-vapi

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)