Best AI chatbots and assistants

AI agent platform with 700+ MCP actions: hosting, storage, payments, voice control

Everything a project gathers. In one place.

Reads the other person, suggests three replies, fills one in. Open source (MIT) for Android, Windows and macOS. It never sends for you.

Introducing GPT-6 Astra, our most intelligent and aligned model yet, with state-of-the-art capabilities across computer use, coding, cyberse

Code, build and deploy apps, and chat with AI for free. Work in your browser, desktop or terminal with Freebuff.

Fixed-scope starter kit for home-service shops to turn LINE "how much?" chats into a structured quote flow.

Sub-300µs, zero-dependency in-memory BM25 search, embedded MCP server, and progressive disclosure for Claude Code, Cursor, and Local LLMs. S

touch grass. your reply guy’s got it.

Practice Brazilian and European Portuguese conversations with AI. Improve speaking, pronunciation and confidence through real-life scenarios

Compare AI models easily! All providers in one place. Find the best LLM for your needs with our comprehensive pricing calculator and feature

AI-powered sales platform with agents, B2B data, signals, and sequencing. Research and prospect in 90% less time from a single chat interfac

Describe the UI you need and draft it with 21st AI. Compare takes, iterate, and bring the prompt or code into your project through the web,

Make any document AI ready with moar. Up to 95% token savings, up to 5x more AI conversations, zero loss of meaning for AI. 100% local. Free

An open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, autonomously grows with memory and knowledge.

The social media API and MCP server for AI agents, ChatGPT, and Claude. Publish to 9 platforms, read analytics, run Instagram and Facebook D

Track and improve your brand's visibility in ChatGPT, Perplexity, Gemini and other AI search engines.

nanobot is an ultra-lightweight, open-source, self-hosted personal AI agent for chat apps, automation, long-running workflows, and developer

Build, test, and deploy advanced voice AI agents in minutes with Vapi. The platform for developers creating conversational voice AI.

Your collaborative AI assistant to design, iterate, and scale full-stack applications for the web.

AI Gateway & LLM Observability

AI song generator: turn ideas into full songs with vocals, stems and lyrics you can edit

AnyJev: Jev-style typed decisions with probabilities from open LLMs: a training-free readout of any model, and the self-distilled Tacit mode

AI visibility platform with citation outreach + an AI blog engine. Tracks your brand across ChatGPT, Claude, Gemini, Perplexity, Grok, DeepS

Meet an AI companion whose expressive voice moves naturally around you in personalized conversations and immersive spaces.

Otter AI Meeting Agent supports real-time transcription, live chat, automated summaries, insights, and action items.

Custom AI chatbots trained on your data. Integrate into your website to increase customer engagement and capture leads. Start Today!

Upload a PDF to draft a section, get feedback, or explain its text. Check important statements against the original document.

RecurseChat, an personal AI app that lets you talk with local AI

Stop guessing how LLMs see you. Optimizes your brand for LLM search with prompt intelligence and AISO.

Hermes Agent — a standalone terminal app and a native application for macOS, Windows, and Linux. Install it and start a conversation with th