SESTEK vs Yellow.ai
SESTEK and Yellow.ai are both customer support tools aimed at enterprise. Only Yellow.ai has a free plan.
Voice-first conversational AI and speech analytics for contact centers
Enterprise agentic AI platform for chat, voice and email support
| Pricing | Paid | Freemium |
| Starting price | Not published | Not published |
| Free plan | No | Yes |
| Free trial | — | — |
| Built for | Enterprise | Enterprise |
| Platforms | web | web |
| Country | TR · 2000 | US · 2016 |
| 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 Yellow.ai if
Large enterprises and contact centers that need multilingual voice and chat AI agents with strict compliance requirements.
- Covers voice, chat and email automation in one platform
- Very broad language support for global contact centers
- Strong compliance credentials for regulated industries
Look elsewhere if: Startups and SMBs adding a simple support bot (Intercom Fin) or product teams wanting a hands-on agent builder (Voiceflow, Botpress).
SESTEK vs Yellow.ai pricing
SESTEK
- EnterpriseCustomProject-based quote; cloud, hybrid or on-prem deployment
Yellow.ai
- Free$01 AI agent, 500 sessions/mo, then $0.99 per resolution
- EnterpriseCustomUnlimited agents and sessions, 35+ channels, SOC 2, ISO, GDPR
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
Yellow.ai · Key features
- Nexus platform to build, deploy and self-heal AI agent workforces
- Nexus VOX voice agents that handle calls in 500+ languages
- Nexus EDGE desktop agents with human approval on every action
- 35+ channels including WhatsApp, web chat, SMS, email and voice
- 150+ prebuilt integrations with Salesforce, Zendesk, Genesys, NICE
- Access to 15+ LLMs with LLM analytics and sentiment tracking
Cons
- Enterprise pricing is quote-only and contracts are large
- Free tier is limited to one agent and basic features
- Implementation usually needs vendor or partner services
SESTEK vs Yellow.ai: FAQ
Do SESTEK and Yellow.ai have a free plan?
SESTEK has no free plan. Yellow.ai has a free plan.