# Quantz® vs telli

Quantz® records 0 monthly visits with 0% month-over-month growth and contact pricing. telli records 30,992 monthly visits with -10.6% growth and Contact for Pricing pricing.

| Metric | [Quantz®](https://openaitools.app/tool/quantz) | [telli](https://openaitools.app/tool/telli) |
| :--- | :--- | :--- |
| Website URL | https://quantz.thinkxinc.com | https://www.telli.com |
| Categories | AI Call Center, AI Voice Assistants, AI Customer Service, No-Code&Low-Code | AI Agent, AI Call Center, AI Customer Service, AI Voice Assistants |
| Pricing Model | contact | Contact for Pricing |
| Monthly Visits | 0 | 30,992 |
| MoM Growth Rate | 0% | -10.6% |
| Primary Market | Global | Germany |
| Direct Visits | 0 | 9,080 |
| Review Score | 4 | 4.4 |
| Saved Count | 0 | 0 |
| Supported Platforms | Website | Website |

## Quantz®

Quantz® is a voice AI product line from ThinkX, a Tokyo-based company whose stated mission is the fusion of science and art. ThinkX builds privately operated intelligent systems and applied services, and Quantz is the part of that portfolio aimed at conversational voice. The company describes it as a custom, proactive voice conversational agent for business: an agent system that pursues goals on its own rather than simply chatting back.

The technical story ThinkX tells is about ownership of the stack. Quantz is described as a completely private, flexibly programmable and ultra-fast realtime conversational agent foundation system, powered by a proprietary codebase of roughly 670,000 lines that includes several patented technologies. A key selling point is the contrast with common cloud voice assistants that separate the language and voice models and use filler acknowledgements such as 'thank you' or 'okay' while preparing an answer. Quantz instead aims to deliver the substantial content of the reply immediately, so the conversation feels genuinely live.

Because Quantz runs entirely on ThinkX's own servers rather than on third-party APIs plus cloud infrastructure, the company claims it is around 25 times more cost-effective than API-based alternatives. It is sold as a tailor-made agent for each organisation, with configuration and dialogue design adjusted to the business, and ThinkX lists it alongside other products such as its Voice AI OS, the CITYWALK geospatial voice guide and the ILRSA social discovery network. Note that the dedicated product subdomain returned server errors during our checks, so availability should be confirmed directly with the vendor.

**Pricing & Plans:** ThinkX does not publish public pricing for Quantz, which is offered as a custom voice agent. Because it runs on the company's own servers, ThinkX markets a large cost advantage over API-plus-cloud voice systems. Contact ThinkX through its product inquiry form for a quote.

- **Private, programmable voice engine:** ThinkX describes Quantz as a completely private, flexibly programmable and ultra-fast conversational agent foundation system built on a proprietary codebase of about 670,000 lines.
- **Fast real responses:** The realtime engine is designed to deliver the substantial content of an answer immediately, rather than stalling the caller with filler acknowledgements while it prepares the reply.
- **Goal-driven conversations:** Rather than only chatting, the agent pursues defined objectives autonomously, making it suited to service, sales and lead-generation calls.
- **Self-hosted economics:** Because it runs fully on ThinkX's own servers, the company claims a large cost advantage over systems that combine third-party APIs with cloud infrastructure.
- **Tailored to your business:** Quantz is presented as a custom agent for each business, with configuration matched to the organisation's processes.

**Strengths:** Ultra-low latency design aims for a genuinely real-time conversation; Fully private deployment on the vendor's own servers, not a public API stack; Proactive, goal-driven behaviour suits service, sales and lead capture; Marketed as substantially more cost-effective than API-based voice systems

**Limitations:** The dedicated quantz.thinkxinc.com subdomain returned server errors during checks, so the demo environment may be intermittently unavailable; Deep technical offering requires some understanding of voice AI deployment to evaluate; No public self-service pricing, so everything starts with a sales conversation

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

## telli

telli is an AI voice platform built around the idea that a phone agent should not just talk, it should finish the job. Agents handle inbound and outbound calls in more than 30 languages with local accents and cultural context, qualify intent, book and confirm appointments against real calendar availability, send reminders, gather data, run satisfaction surveys and follow up on overdue payments. The platform is model-agnostic, using the best available voice and language models rather than locking customers to one provider, with a curated voice library plus voice cloning so agents stay on brand.

Teams assemble agents in telli Studio, a no-code builder where changes to how a conversation behaves are made in natural language. A knowledge base of documents and FAQs keeps answers grounded, native CRM connections and API access let agents pull context and push results, and a library of pre-built actions plus custom ones lets them take real-time steps mid-call. Contact management stays in sync with the CRM, phone numbers can be provided by telli or brought via SIP trunking, and smart dialing optimises call timing and retries for higher pickup rates.

On the improvement side, telli offers live monitoring of active calls, real-time dashboards covering conversion rates, call duration and outcomes, structured and custom call outcomes, review of recordings and full transcripts, and evaluations that flag calls needing attention. An assistant named Charlie helps teams build and refine agents, automate post-call workflows and analyse results conversationally. telli is a German company (telli technologies GmbH) that highlights GDPR and EU AI Act alignment as part of its trust positioning, and it serves B2C brands across industries such as real estate, insurance, recruiting, energy, finance, retail, telecom, travel and logistics. Pricing is quote-based, with a free trial and a bookable demo as the entry points.

**Pricing & Plans:** telli does not publish list prices; it offers a free trial and demo booking, then quotes custom plans based on call volume, languages and integration needs.

- **No-code agent builder:** telli Studio lets teams create and refine agents by describing the conversation in natural language, without engineering work.
- **30+ language voice agents:** Deploy agents with native fluency, local accents and cultural context across 30+ languages, with curated voices and optional voice cloning.
- **Real-time actions and workflows:** Pre-built and custom actions let agents act during a call, while post-call workflows push outcomes into connected systems automatically.
- **CRM and telephony integrations:** Native Salesforce and HubSpot connections plus API access, with telli phone numbers or bring-your-own via SIP trunking.
- **Analytics, QA and live monitoring:** Live call views, conversion and duration dashboards, structured outcomes, transcripts, recordings and pass/fail evaluations keep quality visible.

**Strengths:** Agents complete tasks such as scheduling and payment collection rather than only conversing; Model-agnostic architecture with 30+ languages, local accents and voice cloning; No-code Studio plus an AI assistant keep agent iteration fast; Strong CRM, telephony and workflow integrations with documented GDPR and EU AI Act alignment

**Limitations:** No public price list, so budgeting requires a sales conversation; Enterprise-oriented setup and integrations take effort to configure well; Live B2C calling requires careful attention to local consent and compliance rules

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

## Frequently Asked Questions

### How do Quantz® and telli compare in monthly traffic?

Quantz® has 0 monthly visits, while telli has 30,992. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Quantz® has a month-over-month growth rate of 0%; telli has -10.6%.

### How does pricing compare?

Quantz®: contact. ThinkX does not publish public pricing for Quantz, which is offered as a custom voice agent. Because it runs on the company's own servers, ThinkX markets a large cost advantage over API-plus-cloud voice systems. Contact ThinkX through its product inquiry form for a quote. telli: Contact for Pricing. telli does not publish list prices; it offers a free trial and demo booking, then quotes custom plans based on call volume, languages and integration needs.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Dialpad](https://openaitools.app/tool/dialpad) | 2,763,687 | +10.7% | Paid | The AI platform for customer experience and business communications | [.md](https://openaitools.app/tool/dialpad.md) |
| 2 | [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) |
| 3 | [PolyAI](https://openaitools.app/tool/poly-ai-ai) | 319,894 | +24.3% | Contact for Pricing | Enterprise voice AI that resolves customer conversations | [.md](https://openaitools.app/tool/poly-ai-ai.md) |
| 4 | [CallHippo](https://openaitools.app/tool/callhippo) | 273,071 | +16.9% | Free Trial, Paid | Cloud phone system and AI voice agents for sales, support, and call centers | [.md](https://openaitools.app/tool/callhippo.md) |
| 5 | [[24]7.ai](https://openaitools.app/tool/247-inc-com) | 273,001 | -4.5% | Contact for Pricing | AI-powered omnichannel customer experience and contact center platform | [.md](https://openaitools.app/tool/247-inc-com.md) |
| 6 | [Bland AI](https://openaitools.app/tool/bland-ai) | 243,601 | +7.4% | Paid, Contact for Pricing | Enterprise voice AI agents that handle your most regulated phone calls | [.md](https://openaitools.app/tool/bland-ai.md) |
| 7 | [Synthflow.ai](https://openaitools.app/tool/synthflow-ai) | 95,542 | -7.6% | Free Trial, Contact for Pricing | Enterprise AI voice agents that work inside your phone system | [.md](https://openaitools.app/tool/synthflow-ai.md) |
| 8 | [Phonely](https://openaitools.app/tool/phonely) | 43,690 | +14.6% | Freemium | AI voice agents that answer every business call | [.md](https://openaitools.app/tool/phonely.md) |
| 9 | [Brilo AI](https://openaitools.app/tool/brilo-ai) | 39,554 | +12.5% | Contact for Pricing | AI phone agents that answer, qualify and route every call 24/7 | [.md](https://openaitools.app/tool/brilo-ai.md) |
| 10 | [Simple AI Phone Assistant](https://openaitools.app/tool/simple-ai-phone-assistant) | 33,742 | +27.6% | Contact for Pricing | AI voice and chat agents that handle every revenue conversation | [.md](https://openaitools.app/tool/simple-ai-phone-assistant.md) |

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Source: https://openaitools.app/compare/quantz-vs-telli

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