Symbl
Symbl.ai is a conversation intelligence platform that offers developers real-time transcription and insights of unstructured conversation d...
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What is Symbl?
Symbl.ai is a conversation intelligence platform that provides an API platform for businesses to deploy conversational AI at scale. It transforms unstructured voice, video, and text conversations into structured knowledge, events, and insights using its purpose-built Nebula LLM (large language model) specifically trained for conversation data.
Key features include the Summary API for extracting concise conversation summaries, Call Score API for numerical assessment of conversation quality and participant performance, Realtime Assist for live AI coaching during calls, Voice Agents for automating Q&A on inbound calls, Live Sentiment Analysis, and real-time compliance alerts. The platform supports asynchronous processing of recorded files and real-time streaming via Voice APIs and Conversation APIs with REST interfaces.
Symbl is designed for developers, product teams, AI teams, revenue teams, and data teams who want to build AI-driven interactive experiences. It serves enterprises looking to optimize business conversations in sales calls, customer support, internal meetings, podcasts, webinars, and outbound calls. The platform offers multi-agent capabilities, out-of-the-box solutions, and integrations with Twilio, Vonage, Agora, and Genesys.
Symbl pricing
Pricing model: Free
Free tier: No credit card required, includes Audio/Video up to 1,000 minutes per month at $0, Text up to 10,000 words per month at $0, Call Score API up to 50 criteria at $0, Real Time Assist API up to 5 minutes at $0, and up to 5 concurrent connections. PayG (Pay-as-you-go): No usage commitment, Audio/Video first 1,000 mins at $0/min, next 29K mins at $0.027/min, over 30K mins at $0.017/min; Text first 10,000 words at $0/word, next 3.74M words at $0.0002/word, over 3.75M words at $0.00012/word; Call Score API at $0.10/criteria per conversation; up to 50 concurrent connections. Enterprise: Custom volume-based pricing available through sales contact.
Symbl pros
- Purpose-built Nebula LLM optimized specifically for conversation data
- Real-time contextual conversation intelligence across voice, video, and text
- No need to build any machine learning models - ready-to-use APIs
- Supports both real-time streaming and asynchronous processing of recorded files
- 16,000 token context window for analyzing complete conversations
- Multilingual support including English, Spanish, French, German, Italian
- Call Score API provides numerical scores with context-rich JSON explanations
- Realtime Assist enables live AI coaching and response generation during calls
- Auto-generation of action items, follow-ups, decisions, and questions
- Live sentiment analysis for measuring speaker enthusiasm and emotion
- Real-time compliance alerts for detecting policy gaps during conversations
- Voice Agents automate Q&A and provide personalized recommendations
- Summary UI with customizable, editable, searchable transcript interface
- Flow Manager provides visual editor for no-code reference implementations
- Free tier with 1,000 audio/video minutes and 10,000 text words monthly
- Direct access to Symbl's engineering team and developer community
- Pre-built integrations with Twilio, Vonage, Agora, and Genesys
- Speaker diarization and automatic speaker separation features
- Trackers allow tracking specific keywords and phrases for trend identification
- Pay-as-you-go pricing with no usage commitment required
Symbl cons
- No self-serve paid plan - Enterprise pricing is sales-led only
- Free tier limited to 5 concurrent connections maximum
- Real Time Assist API free tier only 5 minutes per month
- Call Score API free tier limited to 50 criteria per month
- Initial individual APIs require significant coding and development time
- Credit card required for trial/premium subscriptions
- Text pricing at $0.0002/word can be expensive for large volumes
- Audio/video over 30K minutes drops to $0.017/min (still costly at scale)
- Call Score currently supports only Sales and General conversation types
- Limited to 50 concurrent connections on PayG plan
Frequently asked questions about Symbl
What is Symbl.ai?
Symbl.ai is the industry's first developer platform for conversation intelligence. It is an API platform that enables businesses to deploy conversational AI at scale, transforming unstructured voice, video, and text conversations into actionable knowledge and insights using their purpose-built Nebula LLM.
What languages does Symbl.ai support?
Nebula, Symbl's LLM, is multilingual and breaks down language barriers with support for English, Spanish, French, German, Italian, and more languages.
Does Symbl.ai require machine learning model training?
No, you don't need to build any machine learning models. Symbl.ai can contextually understand conversations for your applications out-of-the-box with ready-to-plug-in APIs that provide contextually analyzed conversation data along with speech recognition without any upfront training data.
What types of conversations can Symbl.ai process?
Symbl.ai processes customer calls, internal meetings, support calls, sales calls, podcasts, webinars, videos, and internal/outbound calls. It supports voice, video, and text channels in both real-time streaming and asynchronous processing of recorded files.
What is the Call Score API?
Call Score API is a low-code API that provides numerical assessment and context-rich explanations of conversation quality and participant performance at scale. It currently supports two conversation types: Sales calls (evaluating communication/engagement, question handling, sales process/BANT methodology, forward motion) and General calls (evaluating communication/engagement, question handling based on politeness, empathy, active listening).
What is Realtime Assist?
Realtime Assist is real-time AI Assist that enables timely and accurate support to frontline workers such as sales or customer support agents on live calls. It generates responses to customer queries, detects intent, analyzes sentiment, scores calls for coaching, and provides proactive coaching and intelligent nudges.
How does the Summary API work?
The Summary API extracts clear and concise summaries of conversations immediately after calls across any channel. Users submit recorded or saved conversations in video and audio formats through the Async API, then use the 'Get Summary' request to retrieve summaries. Use cases include summarizing sales calls to identify client pain points, summarizing customer calls for product backlog recommendations, and analyzing call summaries for engagement gauging.
What is Nebula LLM?
Nebula is Symbl.ai's large language model purpose-built to decode human conversation complexities. Based on open-source Llama-2 family and pre-trained on high-quality conversation datasets, it processes up to 16,000 tokens, supports multiple languages, and is instruction fine-tuned on 160+ conversational tasks including summarization, sentiment analysis, topic detection, intent extraction, entity extraction, and question answering.
Does Symbl.ai offer integrations with other platforms?
Yes, Symbl.ai easily integrates with popular platforms including Twilio apps, Vonage, Agora apps, and Genesys Cloud. The platform also provides Flow Manager with visual editor for no-code integrations like meeting insights, Salesforce integration, and Slack integration.
What is the free tier limit for Symbl.ai?
The free tier includes up to 1,000 minutes per month for audio/video at $0, up to 10,000 words per month for text at $0, up to 50 criteria for Call Score API at $0, up to 5 minutes for Real Time Assist API at $0, and up to 5 concurrent connections. No credit card is required to start.