What is Hammer AI?

Hammer AI is a free, private AI chat and roleplay platform where you can chat with AI characters, generate images and write stories. It has a community-built library of over 600 characters in both animated and realistic styles, female and male, from anime originals to photorealistic companions. You can chat instantly in your browser with cloud-hosted models, or download the desktop app that comes with Ollama and over 20 pre-configured local LLMs so everything runs offline on your own machine, with no setup or login needed. Messages are encrypted, never used for training, and by default aren't saved anywhere except your computer. Hammer AI works on the web, macOS, Windows, Linux, Android and iOS, and includes group chats with up to 10 characters, lorebooks, personas, AI image generation with 22 cloud models, and text-to-speech with 746 voices in 34 languages. Core features are free, with optional plans from $9 to $35 per month for users who want unlimited cloud messages and extra credits.

What Can You Do on Hammer AI?

You can chat one-on-one with hundreds of AI characters or build group chats with up to ten characters at once. You can create your own characters, personas and lorebooks so conversations keep long-term memory, and steer replies with advanced samplers like temperature, top-p, top-k and repetition penalty. The built-in image generator offers 22 cloud models directly inside the chat, while the story mode helps you write long-form fiction. Text-to-speech brings characters to life with 746 voices in 34 languages. Power users can run any local LLM through the packaged Ollama and llama.cpp engine with automatic GPU acceleration for Nvidia, AMD, Intel and Apple hardware, or proxy any external API such as OpenRouter and Featherless with their own keys.

Who is Hammer AI for?

Hammer AI is for adults who want immersive AI roleplay without giving up privacy: anime and manga fans chatting with characters like Shinobu or Giyuu Tomioka, roleplayers building fantasy scenarios with vampire kings and queens, writers using the story editor and lorebooks, and privacy-conscious users who prefer a fully offline local model. It also suits casual users who just want a free, unlimited-feeling AI companion that works on any device, since the web version requires no install and the desktop app needs no login or configuration to start chatting.

How much does Hammer AI cost?

Hammer AI is genuinely free: the Free plan at $0/month includes all local LLMs, API proxying, 600 cloud messages per day, image generation and text-to-speech. Paid plans are monthly only. Starter costs $9/month with unlimited messages, no ads and 1,500 credits. Advanced is $18/month with 3,500 credits and 7 cloud LLMs. Ultimate is $35/month with 9,000 credits, a 65,536-token context and 13 cloud LLMs. One-shot credit packs from $1.99 to $99.99 never expire.

Why Choose Hammer AI?

Hammer AI combines what most competitors keep separate: a free tier that is actually usable, true offline privacy through local models, and a full creative toolkit of images, voices, stories and group roleplay in one app. It runs everywhere, is built by an independent developer, and has earned a 4.7 out of 5 average rating from 1,247 reviews. If you want a private, uncensored-friendly AI character platform that does not lock basic chat behind a paywall, Hammer AI is the obvious choice.