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Free planAssistant
Sylius is an open-source Symfony-based headless eCommerce framework for mid-market and enterprise brands that need customizable online stores, unified APIs, and integrator-friendly architecture.
Free trialVideo
Syllaby is an AI video marketing platform for faceless, short-form, and long-form content with script generation, scheduling, voice cloning, and multi-model video rendering. Credit-based plans cover social publishing workflows for agencies and local businesses.
Free to startResearch
AdaL (SylphAI) is an automation-first coding agent with CLI, desktop IDE, browser, and worker agents that also handles go-to-market tasks like demos and social posts. Official docs describe credit-based Pro, Max, and Max+ plans for language, image, audio, and video model usage.
Free tier unknownAssistant
Symanto is a language-AI company that combines NLP, psychology, and business intelligence for customer experience and research. Its SymantoAssist platform targets contact centers and insights teams with empathetic AI agents, text analytics, and accelerator services built on published research.
Free tier unknownAssistant
SymbiotAI is a web app that puts many generative models behind one chat interface for teams experimenting with text and image AI. The site advertises access to models such as GPT-4, Google PaLM, DALL-E, Cohere, Midjourney, and Leonardo from a single workspace.
Free planAssistant
Symbolab is a step-by-step math solver and calculator covering algebra, calculus, trigonometry, and related subjects with practice exercises, graphing tools, notebooks, and AI chat study aids.
Free planDeveloper tools
Symfony is a high-performance PHP framework and ecosystem of reusable components for building web applications, APIs, microservices, and CLI tools. It provides routing, security, templating, ORM integration, validation, testing utilities, and Symfony UX for modern full-stack and API-first projects.
Free planAssistant
Sympa is open-source mailing list management software for creating and administering email lists, with releases, documentation, and community support hosted by the Sympa community site.
Free tier unknownAssistant
SymphonyAI sells vertical AI applications for retail, financial services, industrial operations, enterprise IT, and media. The company combines predictive, generative, and agentic AI in ready-to-deploy products such as merchandising, fraud detection, and manufacturing optimization.
Free tier unknownAssistant
Symphony.run is a developer platform for writing programs you can talk to in natural language. The homepage showcases function-style TypeScript and Python examples for searching contacts, reading calendars, and suggesting events through conversational code.
Free to startAssistant
SymphonyOS is an agent company for music marketing. LabelOS bundles AI agents such as Maestro, Simmy, Cue, Echo, Maude, and Sage to run campaigns, fan CRM, and release workflows per artist on a credit-based platform.
Free planAgent task workspace
Symplist organises tasks in Now, Later and Unclassified lists, with a Markdown page and Git history for each item. Its scoped MCP tools allow a compatible AI client to read and edit tasks alongside project context, while the model key stays with the client.
Free tier unknownResearch
symplistic.ai is a consulting and build shop for enterprise AI agents powered by IBM watsonx and watsonx Orchestrate. The firm offers agent development, professional services, and an AI Innovation Hub for pilots, workshops, and co-created automation across industries.
Free planAssistant
SymptomChecker.io is an experimental AI symptom form that asks for age, gender, symptoms, history, medications, and tests before returning a non-reviewed AI response. The site explicitly warns it is not medical advice and is a student-made research demo.
Free planAssistant
SynapCores provides durable AI agents declared in SQL with CREATE AGENT, combining graph, vector, and in-process LLM capabilities in a single self-hosted binary with governance and audit trails.
Free trialAI application building
Synapse DEV is an AI business-application builder that creates management software from a business description and selected industry context. Users can review a live preview, extend the app, access source code on paid access and purchase an application archive for self-hosting.
Free tier unknownResearch
Synapse Semiconductor is a frontier semiconductor lab building sensing and compute hardware for physical AI. The team focuses on chips that understand and filter visual input at the sensor rather than shipping full frames to remote GPU compute.
Free tier unknownAssistant
SynapseTutor is a medical education program for SGU Term 3–5 students built around module maps, original question banks, dashboards, and optional 1-on-1 tutoring. It emphasizes sequenced study paths, checkpoint quizzes, and module-specific practice aligned to current exams.
Free planAssistant
Synaptic AI is a personal learning assistant with a web dashboard and Chrome extension for capturing notes, summarizing sites and YouTube videos, chatting with your memory, and managing AI-generated tasks on a Kanban board. The vendor runs an early-access program with free usage under reasonable limits.
Free planAssistant
The GitHub project includes trainers, built-in benchmarks, and interactive demos hosted on caza.la.
Free to startAssistant
Synaptiq now markets itself as Ora AI, an evidence-based study platform for medical students from M1 to MD. The site promises AI-guided question practice, weakness detection, and study plans used by tens of thousands of students, with legacy Synaptiq branding still visible.
Free planVideo
sync.so is the commercial home of Sync Labs AI lip-sync and visual dubbing. Customers use the web studio or API to align speech to video, with free, hobby, creator, growth, scale, and enterprise plans priced in monthly USD plus per-second usage.
Free planVideo
SyncBob automates e-commerce product data management across marketplaces such as Amazon and Bol. It advertises AI-assisted flows, SmartForms, and custom sequences to sync, enrich, and publish large product catalogs from a dashboard.
Free trialAssistant
Synced turns Notion documentation into hosted help centers with custom domains, search, analytics, and embeddable widgets. Teams connect Notion content to customer-facing sites without rebuilding docs in another CMS.
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