Compare C1 by Thesys vs. StackAI

At Thesys, we have developed C1, the pioneering API for Generative User Interfaces that is ready for production. This innovative tool allows AI applications to present fully interactive user interfaces in real-time. Rather than delivering just text responses, C1 enables agents to provide dynamic dashboards, forms, lists, and other complex interfaces tailored to the specifics of each inquiry and its context. Many AI solutions continue to depend on text-only responses, which can diminish user engagement, while teams often invest extensive effort in connecting LLM outputs to fragile UI templates. This manual process is not only time-consuming to establish but also challenging to sustain and impossible to scale effectively. C1 revolutionizes this landscape by collaborating with both agile startups and large corporations to enhance their copilots, internal applications, and virtual assistants with smart generative interfaces. This approach not only streamlines development but also significantly boosts user interaction and satisfaction.

StackAI is an enterprise AI automation platform that allows organizations to build end-to-end internal tools and processes with AI agents. It ensures every workflow is secure, compliant, and governed, so teams can automate complex processes without heavy engineering. With a visual workflow builder and multi-agent orchestration, StackAI enables full automation from knowledge retrieval to approvals and reporting. Enterprise data sources like SharePoint, Confluence, Notion, Google Drive, and internal databases can be connected with versioning, citations, and access controls to protect sensitive information. AI agents can be deployed as chat assistants, advanced forms, or APIs integrated into Slack, Teams, Salesforce, HubSpot, ServiceNow, or custom apps. Security is built in with SSO (Okta, Azure AD, Google), RBAC, audit logs, PII masking, and data residency. Analytics and cost governance let teams track performance, while evaluations and guardrails ensure reliability before production. StackAI also offers model flexibility, routing tasks across OpenAI, Anthropic, Google, or local LLMs with fine-grained controls for accuracy. A template library accelerates adoption with ready-to-use workflows like Contract Analyzer, Support Desk AI Assistant, RFP Response Builder, and Investment Memo Generator. By consolidating fragmented processes into secure, AI-powered workflows, StackAI reduces manual work, speeds decision-making, and empowers teams to build trusted automation at scale.