Smallest AI Review 2025 : Pros, Cons, Pricing and Features

Smallest AI on ProductHunt has received five ratings, with users praising its clean design and practical approach. The co-founder of Bestofweb.site highlighted it as a strong, flexible TTS solution that delivers fast, natural-sounding voices with low latency and simple voice cloning. While some users on Linkedin raise issues of importing custom voice clones from Smallest.ai.

In this blog Smallest.AI review, we share insights from users and automation experts, comparing it with Dograh AI, an open-source, scalable alternative for advanced voice automation.

What is Smallest AI ?

Smallest AI was founded in 2023, the company quickly gained attention for its rapid innovation in high performance voice AI. Human-like voices and smart agents boost customer engagement, with an average call time of 130 seconds.

Key Features :

• Accurate handling of complex cases enables better automation with just 5% human fallbacks.
• Auto-dialers and verified numbers drive 80% call connectivity rate.
• Telephony Analytics Integration.
• Electron SLM, in house model trained on millions of conversation.
• Use Cases in Customer Support, Debt Collector, Interview Screening and Real Estate Agent.
• Security and Compliance - HIPAA Compliant, SOC 2 Type II, GDPR and ISO 27001
• Developer capabilities Robust API, SDKs (Python, Node.js), extensive integration support and no-code workflow builder.
• Lightning V2 TTS model to deliver low latency

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The Pros and Cons of Smallest AI

Pros :

• Smallest ai Lightning V2 is a low-latency, multilingual TTS model built for real-time, seamless conversational experiences.
• Certified for HIPAA, GDPR, SOC 2, and ISO 27001, ensuring trust and compliance in healthcare and finance.
• Delivers expressive, human-like voices in 50+ languages with voice cloning and accent support.
• Offers robust APIs, SDKs, integrations and a no-code builder for both developers and business users.
• Provides flexible, pay-as-you-go plans with competitive pricing for high-volume usage.
• Designed for enterprise scale with high concurrency and flexible cloud or edge deployment.

Cons : 

• Usage-based pricing can be complex, enterprise plans require direct consultation.
• Limited documentation for advanced customization may slow onboarding and troubleshooting.
• The voice catalog is smaller than competitors like ElevenLabs, limiting accent and persona variety.
• Needs developer skills to unlock full potential, making it less ideal for non-technical users.
• Smaller community and limited third-party resources reduce peer support and integration options.
• Voice cloning and custom voice licensing can be complex and often limited to enterprise tiers.

Smallest AI Pricing

Smallest AI offers Free, Personal, Business, and Enterprise plans with a free 1 AI Agent and $1 free test credits. Overage charges are billed at $0.05 per 1,000 characters once plan limits are exceeded, ensuring flexible scalability as usage grows.

How Smallest AI Pricing Works :

• Flat Monthly Subscription: Each plan offers a fixed number of tokens or call minutes with defined feature access.
• Pay-as-You-Go (PAYG): Overage fees apply for usage beyond plan limits, billed per character or minute.
• No Lock-ins: Easily upgrade or downgrade plans anytime.
• Volume Discounts: Enjoy reduced per-minute or token rates as your usage scales.

Real Cost Breakdown

The High Plan is designed for larger teams running 10 agents with custom latency and continuous 24/7 usage. It falls under the Enterprise tier, starting at $1,999+, with additional costs of $400 for infrastructure and $200 for model usage, bringing the total to around $2,500 per month on average.

Hidden Costs Discovered:

• Overage charges : $0.05 per 1,000 characters beyond plan limits
• Voice cloning : $25 per voice on the Starter plan
• Priority processing : 50% extra for sub-100ms latency
• Custom models : $500 setup + $200/month

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Dograh AIDograh AI

Smallest AI Usability and Interface

Smallest AI offers a developer centric, API first interface designed for rapid voice agent setup, customization and scalable deployment :

What You’ll Build with Smallest AI :

• Real Time Conversational Voice Agent : Automate customer support, lead qualification, appointment scheduling and surveys with natural customizable voices supporting multiple languages.
• Voice Cloning Deployments : Create brand-customized voices or build agents that handle diverse languages.
• Customer Engagement Bots : Create bots that use smart sales techniques and AI to automate your workflow.
• Cloud-Deployed Bots : Users can build scalable bots deployable on minimal hardware for low latency or on cloud infrastructure for volume and scale.

Limitations :

• Hidden Fees : Voice cloning costs $25 on basic plans, and custom model setup and maintenance add extra charges, increasing total ownership costs.
• Limited Documentation & Support : Users report a steep learning curve, few tutorials, and minimal community engagement, making setup challenging for non-technical teams.

Smallest AI Voice Quality and Latency

Smallest AI supports 50+ languages and 100+ high-quality voices, far more than competitors like Cartesia’s 13. It uses advanced speech modeling for ultra-low-latency, real-time synthesis at enterprise scale. Lightning V2 sets new standards for speed and quality, while its ASR delivers accurate, real-time transcription with authentic multilingual and multi-dialect output.

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Smallest AI Developer Capabilities

Smallest AI offers a comprehensive set of developer capabilities tailored for building, customizing, and scaling enterprise-grade voice AI solutions.

• Robust APIs and SDKs : REST APIs and Python/Node.js SDKs provide precise control for building voice agents, managing calls and automating campaigns.
• Voice Customization & Cloning : Offers quick voice cloning and customization to create branded voices and adjust pitch, tone and emotion.
• Integration & Automation : Integrates easily with CRMs, telephony tools, calendars, and platforms like Zapier and Make.com for end-to-end automation.
• Multi-Lingual Support : Provides strong SDK and API support with phoneme-based I/O for natural, region-specific speech synthesis and recognition.
• Security & Compliance Tools : Includes encrypted data handling, role-based access, and audit logs, supporting HIPAA, GDPR, and SOC 2 environments.

Smallest AI Security and Compliance

Smallest AI ensures enterprise-grade security and compliance for protecting sensitive data across industries.

• HIPAA Compliant : Smallest AI is compiled with Health Insurance Portability and Accountability Acts protects sensitive patient health information.
• SOC Type II : Smallest.ai has completed a SOC 2 Type II security audit and is reviewed every year to make sure it continues meeting strict data protection standards.
• GDPR : Smallest ai is GDPR Compliant, meaning it adheres to EU General Data Protection Regulation standards to protect personal data and privacy of EU citizens.
• ISO 27001 : Smallest ai complies with ISO 27001 standards, for maintaining information security management system.

Smallest AI Customer Support

Smallest.ai provide multi channel customer support to adhere user issues efficiently :

• Discord Community : https://discord.gg/xNBrdjdBa6
• GitHub : https://github.com/smallest-inc/
• Linkedin : https://www.linkedin.com/company/smallest/
• Twitter : https://x.com/smallest_AI

The Better Smallest AI Alternative Dograh AI 

Dograh stands out as a powerful open source alternative to Smallest AI with several advantages :

• Free Open Source - Dograh is an free open source voice ai platform giving full flexibility to developers to customize, self host and extend features. Users should be able to try out in 1 line (should take <2mins ideally).
• 2 Min Launch - In the Create Workflow Dashboard, you can launch a voice agent in just 2 minutes by selecting inbound or outbound calls and writing “For the use cases of…” to describe your agent (e.g., qualify real estate leads, screen candidates, or handle customer support). This description becomes the LLM prompt, instantly generating your customized workflow.
• Pre Built Template - Dograh’s Pre-Built Templates let you launch an AI voice agent in just 2 minutes without writing any code or prompts, with easy customization through a global node for user-specific preferences.
• Global Node - The global node enables users to tailor their voice agents with specific preferences, such as updating industry names or applying custom modifications for personalization.
• License - Dograh AI is released under the BSD 2-Clause License, the same license as its foundational projects, ensuring full compatibility and the freedom to use, modify, and distribute.
• Easy to Use and Dependability - With AI to AI testing (over calls) and feedback loop through call summary, it is fairly easy to build extremely dependable bots with Dograh AI. Also this helps cut down on time needed to build the voice agent, and significantly improves time to market.
• LoopTalk - Think AI calling AI. Dograh’s LoopTalk auto-tests voice bots using AI-driven customer personas to simulate real-world scenarios boosting accuracy and letting you get started in minutes.
• No Double Billing - Dograh offers transparent pricing with no double billing charges for STT, TTS and LLM. And the open source solution is free to host and use.
• End-to-End Support - Dograh’s professional team offers end-to-end support from integration and workflow setup to analytics and optimization.
• Faster Setup - Dograh offers drag and drop workflow builder UI and prebuilt workflow as per your business needs.

Key Features

• NEPQ led Sales - Uses Neuro-Emotional Persuasion Questioning (NEPQ) to drive deeper engagement and guide conversations effectively.
• Real-Time Response - Dograh enables low-latency (<500ms), human-like voice conversations for seamless user interactions.
• Longer Conversation - Dograh multi-agent bots can handle calls up to 45 minutes, maintain full context throughout conversations without hallucinations.
• Human Like Speech - Pauses, Filler words & clear tone for realistic, engaging voice interactions.
• Emotionally Effective - Understand user concerns by actively empathizing and probing their pain points to deliver more personalized, effective voice interactions.
• Tailor-Made Build - Dograh experienced team offers hands-on support to help you design and deploy custom voice agents tailored to your scripts and business needs.
• Multilingual Voice Support - Support multilingual voice agents using top STT and TTS providers, enabling natural and fluent conversations for diverse global audiences.
• Expert Cloud Support - Get expert cloud support with Dograh test and refine your voice agent in real time using our intuitive, cloud-hosted interface.
• Flexible Deployment Option - Dograh supports both cloud and open-source deployments, giving you flexibility based on your business and technical needs.
• Customer Support - Dograh’s dedicated support team ensures your Voice AI runs smoothly from setup to ongoing updates with fast, reliable assistance.
• Data Privacy - Your data privacy is our top priority. Dograh’s open source solution helps adhere to strict GDPR and HIPAA standards to keep your information secure and fully compliant.

Ideal Users

• Real Estate Agent
• Customer Support
• Sales and Marketing Automation
• Tech Support
• Finance, Insurance and Banking
• E-Commerce
• Healthcare
• Logistics & Home Services
• Travel & Hospitality

Quick Comparison Table

Getting started with Dograh

Interested in leveraging Dograh for lead generation, cold calling or business automation ? Here’s a streamlined path to getting started, along with direct links to essential resources :

1. Dograh AI: Quick Start Demo

2. Run Docker Command

Download and Start Dograh first startup may take 2-3 mins to download all images

Docker

3. Quick Start Instructions

Describe use case

Create Workflow Dashboard

Auto-generated templates - test your bot and customize quickly

Dograh AI Dashboard

Step by step written guide to building and deploying your first voice AI Agent

• Open Dashboard: Launch http://localhost:3000 on your browser.
• Choose Call Type: Select Inbound or Outbound calling.
• Name Your Bot: Use a short two-word name (e.g., Lead Qualification).
• Describe Use Case: In 5–10 words (e.g., Screen insurance form submissions for purchase intent).
• Launch: Your bot is ready! Open the bot and click Web Call to talk to it.

4. Community & Support

Join Slack Community and discuss issue with Dograh experts :

Join Slack Community

5. Additional Resource

Smallest AI App Review

Smallest.ai is a robust platform for real-time, scalable voice AI, though buyers should note limited pricing transparency and documentation, which may extend onboarding.

Dograh AI reviews

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