This list is a living directory of 100+ AI agents, frameworks, and platforms that startups can leverage to accelerate growth, build products faster, and automate workflows.
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| ChatGPT | Conversational AI that works out of the box. Ideal for prototypes or chat features. | Conversational understanding, multi-domain knowledge, plugins | ChatGPT |
| CustomGPTs | Train GPTs on your niche (customer support, research). | Domain customization, flexible implementation | Custom GPTs |
| Claude (Anthropic) | Safer, context-rich LLM with very long context windows. | Constitutional AI, long docs, safety-first | Claude |
| Gemini (Google DeepMind) | Multi-modal model for text, images, and more. | Search integration, multimodal, tool APIs | Gemini |
| Perplexity AI | AI search with citations and research agents. | Conversational search, browsing agents | Perplexity |
| Pi (Inflection) | Friendly personal AI companion. | Empathetic design, conversational memory | Inflection Pi |
| Replika | AI friend for companionship and emotional support. | Personality-driven, chat focus | Replika |
| Character.AI | Create and interact with character agents. | Custom character creation, APIs | Character AI |
| HuggingChat | Open-source alternative to ChatGPT. | Community-driven, model-agnostic | HuggingChat |
| Cohere | NLP-focused APIs for startups. | Embeddings, RAG, fine-tuning | Cohere |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| Jasper AI | AI copywriting for lean marketing teams. | Blog/ads/copy | Jasper |
| Writesonic | All-in-one writing assistant. | Blog creation, ads, multilingual | Writesonic |
| Magai | Unified creative AI platform. | Multi-model creative suite | Magai |
| Copy.ai | Marketing-focused AI writing. | Email campaigns, SEO copy | Copy.ai |
| CopySmith | eCommerce-focused AI content. | Product descriptions, ads | CopySmith |
| Anyword | Data-driven AI for ad copy. | Predictive performance scoring | Anyword |
| Rytr | Lightweight copywriting assistant. | Affordable, quick drafts | Rytr |
| INK | AI for SEO content optimization. | SEO score, content ranking | INK |
| Content at Scale | Automates long-form content creation. | SEO-first blog generation | Content at Scale |
| Describely | AI for product content at scale. | Bulk content automation | Describely |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| Auto-GPT | First popular autonomous GPT agent. | Goal-driven, tool use | Auto-GPT |
| BabyAGI | Recursive task automation. | Lightweight, iterative | BabyAGI |
| Devin (Cognition) | AI software engineer. | Writes & debugs code autonomously | Devin |
| AgentVerse | Multi-agent collaboration. | Task coordination, role agents | AgentVerse |
| SuperAGI | Multi-agent automation framework. | Memory, self-learning | SuperAGI |
| OpenAgents | Deployable web, data, and plugin agents. | Modular, open-source | OpenAgents |
| Artisan AI | AI digital workers for businesses. | Sales, support, ops automation | Artisan AI |
| Alta AI | Revenue & sales agents. | SDRs, inbound/outbound automation | Alta |
| StackAI | No-code AI workflow automation. | Easy agent building, integrations | StackAI |
| TinyFish | Web-browsing agents for data tasks. | Competitive intelligence, scraping | TinyFish |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| LangChain | Build AI apps with chains & memory. | Retrieval, multi-modal | LangChain |
| LlamaIndex | Index & query data for LLMs. | Knowledge base, retrieval | LlamaIndex |
| Microsoft Semantic Kernel | Agent orchestration framework. | Planner, skills, connectors | Semantic Kernel |
| AutoGen (MSR) | Multi-agent framework for collaboration. | Role-based agents, tool APIs | AutoGen |
| Smolagents | Lightweight agent framework. | Minimalist, flexible | Smolagents |
| CrewAI | Multi-agent crew system. | Task delegation, workflows | CrewAI |
| Kortix | Open-source agent management. | Training, multi-agent fleet | Kortix |
| Atomic Agents | Multi-agent distributed framework. | Decentralized, modular | Atomic Agents |
| Camel-AI | Role-based conversational agents. | Teacher-student frameworks | Camel-AI |
| EnvX | Repo-to-agent system for GitHub. | Multi-agent coding | EnvX |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| Vocode | Voice & chat real-time agents. | Voice-to-LLM, APIs | Vocode |
| Chatbot UI | Open-source chatbot interface. | UI, multi-model, easy deploy | Chatbot UI |
| Poe by Quora | Test multiple AI models easily. | Multi-model, chat platform | Poe |
| Rasa | Open-source chatbot framework. | NLU + dialogue flows | Rasa |
| Botpress | Enterprise conversational AI. | Workflow automation | Botpress |
| Kore.ai | Conversational AI for enterprises. | Voice bots, omni-channel | Kore.ai |
| Yellow.ai | Omnichannel conversational AI. | Human + AI hybrid | Yellow.ai |
| Drift | Conversational marketing bots. | Sales engagement | Drift |
| Intercom Fin | AI-first support bot. | CX + customer service | Intercom |
| Zendesk AI | CX-focused AI agents. | Customer support workflows | Zendesk |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| Salesforce Einstein AI | AI in CRM. | Sales, support automation | Salesforce |
| UiPath AI | AI-powered RPA bots. | Process automation | UiPath |
| ServiceNow AI | ITSM automation with AI. | IT workflows | ServiceNow |
| Workday AI | HR & finance-focused AI. | Enterprise automation | Workday |
| SAP Joule | AI digital assistant for ERP. | Finance, supply chain | SAP Joule |
| Oracle Digital Assistant | AI for Oracle apps. | Enterprise chatbots | Oracle |
| Glean AI | Internal knowledge search. | Knowledge discovery | Glean |
| People.ai | Revenue intelligence AI. | Sales productivity | People.ai |
| C3.ai | Enterprise AI apps platform. | Industry verticals | C3.ai |
| Palantir AIP | Enterprise agent platform. | Defense, finance, ops | Palantir |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| GitHub Copilot | AI pair programmer. | Autocompletion, context-aware | Copilot |
| Codeium | Free AI coding assistant. | Multi-language support | Codeium |
| TabNine | AI coding autocomplete. | Local-first option | TabNine |
| Mutable AI | Speed up coding workflows. | Smart docstrings, testing | Mutable |
| Ponicode | AI for unit test generation. | Test automation | Ponicode |
| DeepCode (Snyk) | AI code review. | Bug detection | DeepCode |
| CodiumAI | Auto-generate tests from code. | Test assistant | CodiumAI |
| Replit Ghostwriter | AI inside Replit IDE. | Full-stack coding | Replit |
| Cursor IDE | AI-first code editor. | Integrated AI coding | Cursor |
| Devin (again) | AI engineer—highlight again for dev. | Autonomy | Devin |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| AgentGPT (Reworkd) | Autonomous agents in browser. | Open-source, self-host | AgentGPT |
| OpenAssistant | Open-source ChatGPT competitor. | Community-driven | OpenAssistant |
| Hugging Face Transformers | Pretrained models repo. | NLP, vision, multimodal | Hugging Face |
| Langflow | Visual builder for LangChain. | Drag-and-drop | Langflow |
| Haystack | RAG pipelines. | Open-source search & QA | Haystack |
| FastChat | Multi-model serving (Vicuna, LLaMA). | Self-host chat | FastChat |
| LLaMA models (Meta) | Open LLM family. | Efficient open weights | Meta AI |
| Mistral AI | Open-weight performant LLMs. | Fast, efficient | Mistral |
| Falcon LLM | Open-weight LLM from TII. | High accuracy | Falcon |
| RWKV | RNN-LLM hybrid. | Efficient training | RWKV |
| Agent / Platform | Description | Key Features | Useful Links |
|---|---|---|---|
| FlowGPT | Community model & prompt sharing. | Prompts + agents | FlowGPT |
| PromptBase | Marketplace for prompts. | Monetize/share prompts | PromptBase |
| Lablab.ai | Hackathons + AI agent projects. | Tutorials, models | Lablab |
| Replicate | Run open-source models in cloud. | API hosting | Replicate |
| OctoAI | Run fine-tuned open LLMs. | Inference infra | OctoAI |
| Together.ai | Cloud for open models. | Hosting, serving infra | Together.ai |
| Modal Labs | Serverless compute for ML agents. | Deploy AI easily | Modal |
| Banana.dev | GPU hosting for AI models. | Low-latency API deploys | Banana |
| Baseten | Ship ML models into apps. | MLOps infra | Baseten |
| Anyscale | Ray-based infra for LLM agents. | Scalability | Anyscale |