Roleplay / Companion

HammerAI

HammerAI is a free uncensored AI character chat tool that supports web-based use and local Ollama runtime.

Product type: Hosted character chat platformPricing: UnknownAPIMaster integration: Supported

Website created

2020-05-01

OpenRouter token usage rank

#53

Source: OpenRouter

Monthly unique visitors

353,652

Source: SimilarWeb

Website Open App

Overview

HammerAI is positioned as an AI chat platform for roleplay and companion use. Users can access it through the official website or by downloading the desktop app. The web version uses cloud-hosted models, while the desktop version can connect directly to local Ollama models for runtime. A core feature is that users can create and save private character cards that are stored only on the local device, without being made public or subject to platform content restrictions. It is suitable for users who want private, unfiltered conversations, as well as people who prefer local models to avoid subscription fees. Compared with similar products, it offers both cloud and local runtime options while emphasizing local character card storage and cross-device transfer.

One-line summary

HammerAI is a free uncensored AI character chat tool that supports web-based use and local Ollama runtime.

What people use it for

Users use it to create or import character cards, then have multi-turn conversations and roleplay with AI characters. Chat history can also be saved to the cloud or locally for easy continuation at any time.

Best for

Roleplay users, creators, and AI companion users

How it works

Users generally start by selecting or creating a character, then continue chatting in the browser or app. The exact experience depends on the platform model and permission configuration.

Quick facts

Product type

Hosted character chat platform

Pricing

Unknown

The current enhanced batch profile does not maintain real-time pricing for this product. Please refer to the official website or official documentation.

APIMaster integration

Supported

Settings page (Proxy Model mode)

Data confidence

Medium

Last verified: 2026-08-30

Core features and differentiators

Uncensored character chat

Supports completely unfiltered conversations with AI characters

Local Ollama desktop app

Downloadable desktop client for running local models

Cloud LLM web version

Direct browser access to chat with cloud-hosted models

Custom character creation and sharing

Users can create characters and share them via links

Automatic chat saving and cloud sync

Supports automatically saving chat history and syncing it to the cloud

Pinned messages and summaries

Pin key messages and generate summaries in long conversations

What is HammerAI best for?

Roleplay conversations with custom characters

Create or import characters, then engage in ongoing roleplay chats

Best for：Roleplay enthusiasts

Create a private local companion AI

Create a private character in the desktop app that is stored only locally

Best for：Privacy-conscious users

Share character cards and use characters made by others

Share via links or open characters created by others for chatting

Best for：Community users

Have long continuous chats and manage context

Use pinning and summary features to keep long conversations coherent

Best for：Heavy chat users

Third-party key setup for HammerAI (APIMaster integration)

Supported

Setup steps

1Enable Proxy Model mode on the Settings page
2Enter the Base URL and API Key for a third-party OpenAI-compatible API
3Select the corresponding model to use it

Config values

Base URL

https://apimaster.ai/v1

API key environment variable

APIMASTER_API_KEY

Model

Your APIMaster model ID

Create my key

Official source Official source APIMaster API docs

Community discussion

Discussion summary

Users typically understand HammerAI as a free, uncensored AI roleplay and companion chat tool that supports web-based cloud models and local Ollama deployment. Discussion focuses on how to achieve truly unfiltered character interaction, privacy protection and local storage features, as well as comparisons with platforms like Character.AI. Users often share usage experiences, feature-setting suggestions, and pay attention to how immersive roleplay can be achieved.

Most discussed topics

1
Is HammerAI's uncensored feature truly reliable?
Users discuss whether the platform really provides unfiltered roleplay chat, comparing it with other platforms that promise to be unfiltered but still impose practical restrictions.
2
What is the difference between local Ollama deployment and cloud use?
Users share how local installation enables local character card storage and no manual moderation, and compare its privacy and convenience with the web version.
3
How can custom characters be created and saved for long-term interaction?
Users explore character creation, chat save settings, and features that support DnD-style roleplay such as dice rolling.
4
How does HammerAI compare with Character.AI in strengths and weaknesses?
Users compare differences in character simulation, companion feel, and overall user experience, and discuss whether one is better suited to specific scenarios.
5
How proactive and immersive is the AI in roleplay?
Users give feedback on the AI's roleplay performance, such as whether it is too passive or too agentic, affecting romantic or story immersion.

FAQ

What type of product is HammerAI?

We currently classify it under "Roleplay / Companion," and the page description is based on public information from the official website and sources such as OpenRouter.

What is HammerAI suitable for?

The enhanced HammerAI page prioritizes the core tasks and use cases that have been collected, helping you quickly judge whether it matches your current needs.

Can HammerAI connect directly to APIMaster now?

There is currently no reliable source confirming that the product supports third-party keys or custom compatible endpoints, so the page status is shown as pending verification.

Last verified: 2026-08-30 · Report a correction