# Speko vs Tunk.ai

Speko records 20,954 monthly visits with -7.9% month-over-month growth and Paid, Contact for Pricing pricing. Tunk.ai records 0 monthly visits with -100% growth and Free Trial, Contact for Pricing pricing.

| Metric | [Speko](https://openaitools.app/tool/speko) | [Tunk.ai](https://openaitools.app/tool/tunk) |
| :--- | :--- | :--- |
| Website URL | https://speko.ai | https://www.tunk.ai |
| Categories | AI API, AI Speech-to-Text, AI Text-to-Speech, AI Agent | AI Speech-to-Text, AI Agent, AI Transcription, AI API |
| Pricing Model | Paid, Contact for Pricing | Free Trial, Contact for Pricing |
| Monthly Visits | 20,954 | 0 |
| MoM Growth Rate | -7.9% | -100% |
| Primary Market | United States | Global |
| Direct Visits | 5,932 | 0 |
| Review Score | 4.4 | 4.2 |
| Saved Count | 0 | 0 |
| 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)

## Tunk.ai

Tunk.ai is a voice AI platform from LogicNimbus Private Limited, aimed at teams that need to put AI on the phone rather than just in a chat window. The headline product, ANCHOR, is an agent builder: you describe in plain English what the agent should do, who it talks to and what a good call looks like, and the platform assembles the voice, prompts, knowledge and call flow for you. From there you attach tools, endpoints and a phone number, test the conversation, and deploy it either to a live line, inside your own app, or through the API.

Under the hood the platform is organized into six subsystems, covering the call flow engine, a centralized knowledge base, mid-call tools and actions, a unified assistant hub, a workflow engine for branching and escalation, and records plus analytics for every call. Because the agent can call your own endpoints during a conversation, it can book appointments, look up or update records and then write the outcome back to Salesforce, HubSpot or Zoho — analytics then return sentiment, intent and outcome scoring as soon as each call ends. Phone numbers are provisioned through Twilio or Plivo and campaigns can be pointed at a contact list, so outbound dialing runs at whatever volume you need.

The second pillar is speech to text. Real-time transcription returns text while the caller is still speaking, across dozens of languages and accents, and it is available directly through an API or the built-in playground. The platform supports multiple LLM and transcriber providers — including OpenAI and Azure — so you can swap the underlying model without rebuilding an agent. Tunk.ai is listed with NVIDIA Inception and participates in the Speechmatics Startup Program and Startup India. Pricing is enterprise-oriented; the site routes buyers to a demo or sales conversation rather than publishing flat self-serve rates.

**Pricing & Plans:** Enterprise-oriented with a free trial / demo path. No public self-serve price list is shown: prospective customers are asked to book a demo or contact the team, and pricing is reported as per-minute or customized enterprise volume tiers for voice agents, real-time telephony streaming and speech-to-text APIs.

- **ANCHOR Agent Builder:** Describe an agent in plain English and the platform sets up the voice, prompts, knowledge and call flow; then test, refine and deploy to a phone line, an app or the API.
- **Real-Time Speech to Text:** Streaming transcription returns text while the caller is still speaking, covering dozens of languages and accents through the API or the built-in playground.
- **Tools, Actions and CRM Sync:** Hand the agent your own endpoints so it can book, look up and update records mid-call, then write the outcome back to Salesforce, HubSpot or Zoho.
- **Outbound Campaigns and Cloud Dialer:** Connect Twilio or Plivo, point a campaign at your contact list, and let the agent handle every call while you manage only the queue.
- **Call Analytics and Compliance Records:** Sentiment, intent and outcome are scored on each conversation the moment it ends, with transcripts and costs retained so you can audit and improve campaigns.

**Strengths:** Agents are configured in plain English, which lowers the barrier for non-engineers; Covers both sides of voice: an agent builder for calls and a real-time speech-to-text API; Mid-call integrations write outcomes back into Salesforce, HubSpot and Zoho; Carrier-agnostic telephony through Twilio or Plivo, with inbound and outbound support

**Limitations:** No published self-serve pricing, so you must talk to sales before you can budget; Enterprise setup with carriers, CRM and knowledge sources takes real integration work; Public documentation and third-party reviews are thinner than for larger voice AI vendors

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

## Frequently Asked Questions

### How do Speko and Tunk.ai compare in monthly traffic?

Speko has 20,954 monthly visits, while Tunk.ai has 0. 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%; Tunk.ai has -100%.

### 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%. Tunk.ai: Free Trial, Contact for Pricing. Enterprise-oriented with a free trial / demo path. No public self-serve price list is shown: prospective customers are asked to book a demo or contact the team, and pricing is reported as per-minute or customized enterprise volume tiers for voice agents, real-time telephony streaming and speech-to-text APIs.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ElevenLabs](https://openaitools.app/tool/elevenlabs-io) | 42,396,771 | +26.1% | Freemium, Paid, Contact for Pricing | AI audio platform for speech, agents, music and dubbing | [.md](https://openaitools.app/tool/elevenlabs-io.md) |
| 2 | [Cartesia](https://openaitools.app/tool/cartesia-ai) | 1,782,707 | +49.7% | Contact for Pricing | Real-time voice AI models and agents you can build on | [.md](https://openaitools.app/tool/cartesia-ai.md) |
| 3 | [Deepgram Voice AI](https://openaitools.app/tool/deepgram-voice-ai) | 863,852 | +31.8% | Free Trial | Real-time speech-to-text, text-to-speech and voice agents in one API platform | [.md](https://openaitools.app/tool/deepgram-voice-ai.md) |
| 4 | [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) |
| 5 | [JustCall](https://openaitools.app/tool/justcall) | 780,285 | +11.8% | Paid | AI communication platform for sales and support teams | [.md](https://openaitools.app/tool/justcall.md) |
| 6 | [Vapi](https://openaitools.app/tool/vapi) | 662,301 | -11.4% | Freemium | Build, test, and deploy production-grade voice AI agents over API | [.md](https://openaitools.app/tool/vapi.md) |
| 7 | [AssemblyAI](https://openaitools.app/tool/assemblyai) | 453,591 | -6.9% | Freemium, Contact for Pricing | Speech-to-text and voice intelligence APIs for developers | [.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 | [Gladia](https://openaitools.app/tool/gladia) | 232,451 | +6.4% | Freemium, Contact for Pricing | Speech-to-text and audio intelligence API for production voice products | [.md](https://openaitools.app/tool/gladia.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-tunk

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