HammerAI

HammerAI is an AI character chat and roleplay platform that lets users interact with characters and write stories.

HammerAI is an AI character chat and roleplay platform designed for users who want to converse with various fictional, original, and anime characters. The platform allows users to chat with characters, generate images, write stories, participate in group chats, and build lorebooks and personas. Users can process messages on secure cloud servers or run LLMs locally on their machine using Ollama in the desktop app for total privacy. The service offers a wide variety of character categories including anime, historical, sci-fi, gaming, and original creations. It is available across desktop and mobile applications.

HammerAI at a glance

Best for: Writer
Runs on: Web, macOS, Windows, Linux, iOS, Android
Pricing: Free plan; Starter $9/month; Advanced $18/month; Ultimate $35/month
Released: August 2025
Category: AI chat assistant
Website: hammerai.com

Key features

Chat with AI characters
Generate images
Write stories
Participate in group chats
Build lorebooks and personas
Run local models using Ollama
Use cloud-hosted models

Use it for

Roleplaying with AI characters
Writing fictional stories
Generating images
Creating custom characters and lorebooks

Alternatives to HammerAI

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TavernAI — Supports local models and dozens of API integrations for roleplay.
SillyTavern — Local LLM chat UI with lorebooks, extras and many backends
Backyard AI — Customize AI characters with dynamic voices, lorebooks, and fine-grained model parameters.
AI Virtual Phone — Simulates complete mobile phone interactions with AI characters in the browser.
Kimi — Agent Swarm splits big research jobs across many sub-agents
AI Dungeon — Create open-ended stories and explore interactive worlds powered by AI.
Duck.ai — Protects conversations from tracking and keeps information completely confidential.
Goutoujunshi — It transforms complex emotional and relational data into specific, actionable steps.
IntelliBar — Connects to multiple AI models and local models without subscription fees.
AI Chat Menu Bar — Access chatbots instantly from the menu bar without switching windows.
Noi — It keeps AI chat history and prompt data stored locally on your device.

All HammerAI alternatives