Laying out the streets…STEP 1 OF 3

The Codex AI · Office #6,016

Immersive multimodal AI storytelling & roleplay sandbox

In the AI companions and character chat neighborhood (AI and agents). In town since 8 Sept 2026.

The owner claimed this office and turned the lights on.

Visit thecodexai.com

The Codex AI product page

Confirmed by the founder

Tablif wrote these from The Codex AI's own pages and the founder approved each one before it was published.

Guides and pages

What The Codex AI doesn't do

Questions people ask

How are my API keys protected?

Keys are encrypted on your side before use, and the Aegis Vault uses AES-256-GCM encryption.

Can several characters share one chat?

Yes. Cast Lounges are multi-character chat rooms with presence status and in-line mentions.

Can characters speak out loud?

Yes. OmniResonance gives characters synthesized voices, with more than 30 neural voice presets.

Can I turn a story into an eBook?

Yes. Chronicle Studio is a novel authoring mode with EPUB and PDF export.

Can I run it with a local model?

Yes. Local setups such as Ollama and LM Studio are supported.

Which providers can I connect with my own key?

Many, including OpenRouter, Anthropic, OpenAI, Google, DeepSeek, xAI, Mistral, NovelAI and AI Horde.

Do I need my own API key to start?

No. The Free tier comes with a platform-provided model, DeepSeek V4 Flash 0423, so you can play without setting up a key.

Is The Codex AI free to use?

Yes. The core storytelling and roleplay features are free, and paid memberships add more curated models and remove ads.

How much do the paid memberships cost?

Supporter is $5 a month, Adventurer $10 a month and Legend $20 a month. They add more zero-key models and remove ads.

Can I import my SillyTavern or Chub character cards?

Yes. You can import SillyTavern and Chub PNG cards, JSON cards and whole collections with drag and drop in the browser.

Is there an Android app?

Yes, but it is in closed testing, so your Google account has to join the testers program before it installs.

What Tablif read on The Codex AI's site

The Codex AI describes itself as: “The Codex AI | Free Uncensored AI Roleplay, Cast Lounges, Public Characters, Story Universes & OmniResonance™ Voices (BYOK)”

What it is

Calls itself “interactive storytelling engine”.

  • Calls itself: interactive storytelling engine
“…interactive storytelling engine”

Where it puts itself

Claims “The premier free platform”. Rules out “zero filters”.

  • Superlative claim: The premier free platform
  • Says it will not: zero filters
“Beyond generic text chatbots with amnesia, The Codex AI brings”
“The premier free platform for uncensored AI roleplay”

What it costs

A free tier, free forever.

  • Free plan: free forever
“The premier free platform for uncensored AI roleplay”

Who it sells to

Sells to consumers. In EN.

  • Sells to: consumers
  • Languages: EN
“The premier free platform for uncensored AI roleplay (RP)”
“🇺🇸 EN”

How it runs

A web app. Hosted in the cloud. AI is the core of the product. You can bring your own API key. Built with Google Analytics.

  • Kind: web
  • Runs where: cloud / hosted
  • AI role: core to the product
  • Bring your own key: yes
  • Analytics: Google Analytics
“Direct browser-to-LLM streaming”
“Direct browser-to-LLM streaming with OpenRouter”

What it works with

Names AI Horde, Claude 3.7 and 5 more on its pages.

  • Names: AI Horde · Claude 3.7 · DeepSeek R1/V3 · +4
“AI Horde”
“Claude 3.7”

What it offers as proof

Live, no waitlist. Compliance: AES-256-GCM. Try it without signing up.

  • Compliance: AES-256-GCM
  • Instant signup: yes
  • Trial asks for: nothing
“Sign In”
“The premier free platform for uncensored AI roleplay”

Sources

Tablif read these pages, last on 28 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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