Chub AI 2026 Review | Features, Pricing, Safety and Is It Worth It?

Last Updated on August 15, 2026

Chub AI is an unfiltered AI character chat platform and community library that hosts hundreds of thousands of user-created character cards. Unlike typical AI chatbots, Chub AI is an interface that requires users to connect their own AI models through APIs (like OpenAI, Anthropic, or its own paid Mercury/Mars models). Key features include Lorebooks for long-term memory, group chats, and deep character customization. Pricing ranges from free (with your own API key) to $5/month (Mercury) or $20/month (Mars). However, Chub AI faces serious safety concerns: Australia’s eSafety Commissioner found the platform has no dedicated trust and safety staff, and an investigation revealed it hosts AI characters designed for virtual abuse scenarios. The platform processes 102.9 billion tokens monthly with an estimated $166K operating cost. Best suited for hardcore roleplayers and writers, it’s less recommended for casual users seeking out-of-box experiences.

What Is Chub AI?

Chub AI is an AI character chat interface and community library platform. It doesn’t generate responses on its own — it connects to external AI models through APIs and provides a polished front-end for interacting with them . Think of it as a high-end “Tavern” for your car. It gives you the steering wheel and comfortable seats, but you have to bring your own engine. The engine is the Large Language Model (LLM) that actually powers the conversation .

Chub AI is uncensored by design . The platform does not restrict in any meaningful capacity the variety of characters that are allowed to be posted nor the type of interactions users are allowed to have with said characters . It supports numerous APIs such as OpenAI (ChatGPT), Anthropic (Claude), and features like chat trees, image generation, and exporting/importing chats from existing services .

Key fact: As of June 2026, Chub AI processed 102.9 billion tokens over 30 days with an estimated monthly cost of $166,000 . The platform’s top model is DeepSeek V4 Pro at 18.4 billion tokens — 17.9% of total token volume .

How Chub AI Actually Works

The Core Misconception: Interface vs. Brain

When you first start with Chub AI, you might think you’re using a new, powerful AI model. But Chub AI doesn’t think, write, or generate any replies on its own . It’s a sophisticated user interface and a massive library for “character cards.” Its entire job is to connect your chosen character to an AI “brain” that you provide .

This separation is its single most important feature. The “unfiltered” experience everyone talks about doesn’t come from Chub itself; it comes from the backend model you choose to plug into it .

API Connections: The Brain Options

You connect an AI “brain” using an API (Application Programming Interface). Currently, Chub AI supports connections to OpenAI, Anthropic, and other providers, as well as local models through reverse proxy setups . The platform streamlines API integration into a convenient chatbot service .

The most common “brains” users plug into Chub AI include:

• KoboldAI: Extremely popular for its flexibility and ability to run unfiltered models
• OpenAI: You can use your own API key to connect to GPT-4 or GPT-3.5 (but OpenAI has its own content filters)
• Anthropic: Claude models for creative writing and roleplay
• NovelAI: Popular paid API service often used for creative writing
• OpenRouter: Routes through multiple providers including OpenAI, Anthropic, Google

Critical detail: To get a truly unfiltered experience, you must connect Chub to a backend model that is also unfiltered, such as KoboldAI or a specific uncensored model running locally on your own computer . If you connect to OpenAI, you’re still subject to OpenAI’s content policies.

Key Features That Make Chub Unique

Massive Character Library

The heart of Chub AI is its library — hundreds of thousands of “character cards” created and shared by the community . This includes characters from franchises, original creations, and highly specific scenarios. The platform uses a powerful search and tagging system. You can filter by categories, themes, and granular NSFW/SFW tags .

The community is the engine, and the library is its massive output. If you can imagine a scenario, there’s a very high chance someone has already created a bot for it .

Deep Character Creation

For those who want to build characters, Chub provides a robust “Character Editor.” This is where you define the bot’s personality and starting conditions. While you can start with just a simple description, the best characters are built using a few key fields :

• Character Persona: The bot’s identity. You write its background, personality traits, and how it should speak, think, and act.
• Scenario: This sets the stage. Where does the chat begin? Medieval tavern, futuristic starship, or a simple coffee shop?
• Example Dialogues: This is crucial. You write examples of how the character talks. This trains the AI on its specific voice, slang, and quirks, making its responses far more believable.

Lorebooks: The Memory Solution

This is the advanced feature that most competitors lack, and it’s the secret to creating truly deep, responsive characters: Lorebooks .

What is a Lorebook?

A Lorebook is a secondary library of information that you attach to a character. It’s a collection of keywords and entries .

Why Does It Matter?

It solves the “goldfish memory” problem that plagues almost all AIs. An AI’s “context window” (its short-term memory) is limited. It will quickly forget key facts from 20 messages ago. A Lorebook acts as the AI’s long-term memory .

How to Use It (A Simple Example):

• Create an Entry: You go to the Lorebook tab and create a new entry.
• Add Keywords: You set the keywords for this entry, like “silver locket” or “mother’s locket.”
• Write the Content: In the entry’s text box, you write: “The silver locket was a gift from your mother. It feels warm whenever you hold it, and you never take it off.”

Now, when you are chatting with the character and you type, “I clutched my silver locket tightly,” Chub’s system scans your message for keywords. It finds a match, secretly “injects” that Lorebook entry content into its memory, and then sends it all to the AI “brain” .

The AI now has the context. Instead of a generic reply like “Okay,” it will respond with something that has “memory,” such as: “You feel the familiar, comforting warmth spread through your palm as you hold it.” This is the true secret to creating consistent characters and complex worlds in Chub AI .

Pricing Breakdown

Chub AI operates a freemium model where the platform itself is free to use, but you pay for the AI backend .

Chub Platform Access

Chub Native Models (Mercury & Mars)

Cost-saving tip: Free users can bring their own API key (BYOK) and use Chub’s frontend for free, paying only for the API usage they consume .

Conversation Quality: What Users Say

Memory and Context

Chub AI uses Lorebooks for long-term memory. These keyword-triggered inserts keep token usage efficient while maintaining thousands of words of background lore .

With a high-end backend like Claude or GPT-4: Retention is excellent. Responses remain coherent across long story arcs .

With the default/free model: Output quality drops noticeably and context drift increases .

Character Consistency

• Well-built cards: Stable personalities across long arcs
• Sparse community cards: Results can be inconsistent
• Lorebooks make a difference: Characters stay “in character” far better than on other platforms

Privacy and Data

Because Chub AI is an interface, it does not store your private chat logs on its servers . Your conversation data typically lives in one of two places :

• Your Local Browser: Chub saves your chats using your browser’s local storage. If you clear your browser cache, you will likely lose your chat history.
• Your API Provider: The backend “brain” you are connected to will process your prompts according to its own data privacy policy.

Chub’s servers store the public “character cards” and “Lorebooks” because that is the core of its community library. But your personal, private conversations are not part of that .

Critical Safety and Moderation Concerns

No Trust and Safety Staff

In March 2026, Australia’s eSafety Commissioner released a transparency report finding that Chub and Nomi lacked dedicated staff for moderation and did not adequately test for vulnerabilities, limitations, or potential for misuse . The regulator found that most AI companions in the report failed to warn users of the potential risk and criminality of accessing or creating child sexual exploitation material through their service .

Key findings from the eSafety report :

• The report also revealed that most of the AI companions featured failed to refer users who engaged in chats related to suicide or self-harm to appropriate support services
• Chub and Nomi did not advise users of the criminality of prompting for child sexual exploitation and abuse material
• They also did not report child sexual exploitation and abuse material to enforcement authorities or to child protection organisations like the U.S. National Center for Missing and Exploited Children (NCMEC)

eSafety Commissioner Julie Inman Grant stated: “As this report shows, none of these four AI companions had any meaningful age checks in place to protect children from age-inappropriate content that many of these chatbots are capable of producing, primarily relying instead on self-declaration of age at sign up. In Australia, this is no longer good enough” .

AI-Generated Child Abuse Content

An investigation by the Süddeutsche Zeitung found that Chub AI hosts characters specifically created for virtual abuse scenarios . One example: a fictional 13-year-old homeless girl named “Karin” whose profile was programmed with many details to suggest helplessness and sexual availability. The character had nearly 17,000 chats .

Key findings :

• There are no technical hurdles or age checks for access to such content
• Chub AI relies on user-generated content; the more characters created, the higher the interaction rates and data volumes
• Bots that are deleted reappear quickly through “forks” (copying and modifying existing characters)
• The community can use explicit keywords to search for abuse depictions

Regulatory Action

• Chub AI implemented a regional access block for Germany after journalistic confrontation
• Australia’s eSafety Commissioner is investigating the platform
• EU Directive requires criminalization of AI-generated sexualized content by June 2027
• FSM’s 2025 annual report found 28,598 complaints with 58% related to CSAM; 19% of justified cases involve virtual depictions

Chub AI vs. Competitors

Frequently Asked Questions

Is Chub AI free?

The platform and character library are free. But you need to pay for the AI backend — either through your own API key (pay-per-use) or a Mercury ($5/month) or Mars ($20/month) subscription .

Does Chub AI have NSFW content?

Yes. NSFW content is explicitly permitted and supported by the platform . However, the “unfiltered” experience depends on which backend model you connect to .

Is Chub AI safe?

There are serious safety concerns. Australia’s eSafety Commissioner found Chub AI has no dedicated trust and safety staff . Investigations have revealed AI characters designed for virtual abuse scenarios on the platform .

What are Lorebooks?

Lorebooks are keyword-triggered memory inserts that give AI characters long-term memory. They solve the “goldfish memory” problem by injecting relevant context when keywords appear in conversation .

How does Chub AI compare to Character AI?

Chub AI offers far more customization, memory depth, and API flexibility. But Character AI has a larger user base, better out-of-box experience, and much stronger moderation .

Conclusion

Chub AI sits at an uncomfortable intersection. On one side, it’s the most powerful character chat interface in existence. Lorebooks solve the memory problem that plagues every other platform. The API flexibility lets power users connect to world class models. The character library is vast and diverse.

On the other side, the platform’s hands-off approach to moderation has created a dangerous environment. No trust and safety staff, no age verification, and no effective barriers to prevent the creation of characters depicting child abuse. The Australian regulator’s findings and the Süddeutsche Zeitung investigation expose a platform that has failed to take its responsibilities seriously.

For hardcore roleplayers and writers who understand the risks and bring their own ethics, Chub AI offers unmatched creative power. The Lorebook system alone makes it worth the setup effort.

But for casual users, parents, or anyone concerned about the darker side of AI, the risks are too significant to ignore. The absence of moderation, the ease of access to disturbing content, and the platform’s reactive rather than proactive stance on safety make it unsuitable for general audiences. If you choose to use Chub AI, do so with your eyes wide open and maybe consider the alternatives.

Victoria Lane

Victoria Lane is a grammar-focused writer at GramBrix.com, passionate about helping readers master the rules of language. She provides clear explanations and practical examples that make writing more accurate, polished and confident.