SESTEK vs Vaani AI
SESTEK and Vaani AI are both chatbots & AI agents tools. SESTEK is aimed at enterprise, while Vaani AI is aimed at developers and small businesses.
Voice-first conversational AI and speech analytics for contact centers
Voice AI agent platform for phone and web calls with API and webhooks
| Pricing | Paid | Paid |
| Starting price | Not published | Not published |
| Free plan | No | No |
| Free trial | — | — |
| Built for | Enterprise | Developers, Small businesses, Enterprise, Agencies |
| Platforms | web | web |
| Country | TR · 2000 | IN |
| Rating | — | — |
Choose SESTEK if
Large contact centers that need accurate voice AI and speech analytics, with the option to host everything on-premise.
- Strong speech recognition for Turkish and regional dialects
- On-premise option suits banks and regulated industries
- Covers bots, agent assist and analytics in one vendor
Look elsewhere if: Small businesses wanting a quick self-serve chat widget (Tidio, Intercom, Ada).
Choose Vaani AI if
Developers and Indian businesses that want API-driven phone agents with full control over the model, voice and carrier stack.
- Transparent per-component pricing with a public cost estimator
- Unlimited agents, knowledge bases and voices on Pay as you go
- Wide model choice across OpenAI, Gemini, Groq, Deepgram, Cartesia and Sarvam
Look elsewhere if: Contact centers that want a fully managed enterprise suite or teams focused mainly on chat (SESTEK, Yellow.ai, Voiceflow).
SESTEK vs Vaani AI pricing
SESTEK
- EnterpriseCustomProject-based quote; cloud, hybrid or on-prem deployment
Vaani AI
- Pay as you go$0.02/minPlatform fee; models, voice and telephony billed on top
- Phone number add-on$10/moPer number; rental rates vary by country
- Concurrency add-on$20/mo5 extra concurrent lines; 2 included on Pay as you go
- EnterpriseCustomOwn provider keys, white-label, zero data retention, SSO on demand
SESTEK · Key features
- AI voice and chat agents that resolve requests end to end
- In-house speech recognition and text to speech engines
- Agent Assist and Agent Copilot with live guidance during calls
- Conversational analytics with emotion detection and keyword spotting
- Automated quality management that scores 100% of interactions
- Coaching module tied to quality scores for each agent
Cons
- No public pricing, free tier or self-serve trial
- Enterprise project timelines rather than quick setup
- Product naming shifted between Knovvu and SESTEK branding
Vaani AI · Key features
- Teacher AI builds an agent from a plain-language brief and shows prompt diffs
- Outbound and inbound phone calls plus browser and in-app voice
- REST API to trigger calls and scheduled calling campaigns
- call_ended and call_postprocessing webhooks with transcript and extracted fields
- Memory across calls with the same caller
- Call screening, voicemail detection, warm and live transfers
Cons
- Total cost per minute depends on the stack, so quotes take effort
- Only 2 concurrent calls on Pay as you go without paying for more lines
- Bring-your-own provider keys, SSO and RBAC are Enterprise only
SESTEK vs Vaani AI: FAQ
Do SESTEK and Vaani AI have a free plan?
SESTEK has no free plan. Vaani AI has no free plan.
Which is better for small businesses, SESTEK or Vaani AI?
Vaani AI lists small businesses as a core audience, while SESTEK is aimed more at enterprise.