Stackbear

Provides a drag-and-drop interface for constructing multi-turn conversation flows without coding, likely using a state-machine or directed-graph architecture where nodes represent conversation states and edges represent user intents or message triggers. The builder abstracts away prompt engineering and API orchestration, allowing non-technical users to define branching logic, conditional responses, and fallback handlers through visual composition rather than writing LLM prompts directly.

Enables users to upload or connect business documents, FAQs, product catalogs, or knowledge bases to customize the underlying LLM's responses beyond generic outputs. The system likely uses retrieval-augmented generation (RAG) or lightweight fine-tuning to inject domain-specific context into the model's response generation, allowing the chatbot to answer questions about specific products, policies, or procedures rather than relying solely on the base model's training data.

Detects the language of incoming user messages and routes them to language-specific response generation or translation pipelines, enabling a single chatbot to serve customers in multiple languages without separate bot instances. The system likely uses language detection models (e.g., fastText or transformer-based classifiers) on input, then either generates responses in the detected language or translates base responses using neural machine translation (NMT), maintaining conversation context across language switches.

Abstracts underlying LLM provider selection (likely OpenAI, Anthropic, or local models) and routes messages to the most cost-effective option based on query complexity, conversation history, or configured policies. The system may use a provider abstraction layer that normalizes API calls across different LLM backends, allowing users to switch providers or use fallback models without rebuilding chatbot logic, and may implement cost-aware routing that uses cheaper models for simple queries and reserves expensive models for complex reasoning.

Aggregates conversation logs, user interactions, and chatbot performance metrics into a dashboard showing conversation volume, user satisfaction, common intents, fallback rates, and response quality indicators. The system likely uses event streaming or log aggregation to collect conversation data, then applies analytics queries to surface trends, bottlenecks, and opportunities for improvement, potentially including sentiment analysis or intent classification on historical conversations.

Generates embeddable JavaScript code that deploys the chatbot as a widget on websites, mobile apps, or messaging platforms (e.g., WhatsApp, Facebook Messenger). The system likely provides a widget SDK that handles message rendering, user input capture, and API communication, with configuration options for colors, positioning, and behavior (e.g., auto-open, greeting messages, typing indicators). Deployment may support multiple channels through a unified backend, allowing conversations to flow across web, mobile, and messaging platforms.

Maintains conversation state across multiple user turns, preserving user intent, previous responses, and relevant context to enable coherent multi-turn dialogues. The system likely uses a conversation store (e.g., in-memory cache, database, or vector store) to track conversation history, and implements context windowing or summarization to manage token limits when conversations grow long. The architecture may support context injection into LLM prompts, allowing the model to reference previous turns without explicitly including full conversation history.

Automatically classifies incoming user messages into predefined intents (e.g., 'billing question', 'product inquiry', 'complaint') and routes conversations to specialized handlers, fallback queues, or human agents based on intent confidence and routing rules. The system likely uses text classification models (e.g., transformers or intent classifiers) trained on conversation examples, and implements a routing engine that applies rules (e.g., 'if intent=complaint AND confidence<0.7, escalate to human'). This enables the chatbot to handle different conversation types with appropriate logic and gracefully hand off to humans when needed.