Chub AI runs on a freemium model. You can sign up, browse the character library, and start chatting without paying. The free plan covers basic AI models and character creation, while paid tiers add larger models and extra tools. Costs can still appear if you connect your own external API. Here is what the free plan gives you and where the paid options start.
Is Chub AI Free to Use?
Yes. Chub AI has a free tier that costs nothing. You get basic AI models, can chat with existing characters, build your own, and save or export your conversations. Basic image generation is part of it too.
No download is needed. The platform runs in a browser, so you make an account and start typing.
The catch sits in the models. Free users rotate through smaller test models that handle casual chat but slow down on long or complex scenarios.
What the Chub AI Free Plan Includes
The free plan ($0) gives you the core of the platform.
You can chat with any public character, fork existing ones, and create characters from scratch using the lorebook and tagging tools.
Chat export and local saving sit in the free tier, so you keep your characters if you ever drop a paid plan.
Image generation is available at a basic level, with limits on quality and customization.
Chub AI Free vs Paid Plans and Pricing
Two paid tiers sit above the free plan.
Chub AI monthly cost by tier
Mercury costs $5 per month. It unlocks Mistral 7B and MythoMax 13B finetunes, 8K tokens of memory, multimedia generation, and future models at 13B or below.
Mars costs $20 per month. It adds larger models such as Asha 70B, Mixtral 8×7B, and Soji, plus unlimited voice and multimedia, and early access to new releases.
Chub AI skips the token-purchase system. Your tier decides which models and features you can reach.
Do the Free Chub AI Models Have Limits?
The free models work for light use. They handle short conversations and simple personalities without trouble.
Push them into longer roleplay and the gaps show. Replies turn repetitive, and characters forget earlier details. This pattern runs across budget tiers. Dopple AI caps free chats at 125 messages per session, while Joyland AI uses a daily credit system.
For steady use, the $5 Mercury plan clears most of the friction.
Hidden Costs of Connecting Your Own API
Chub AI also works as a front end for outside models. You can plug in keys from OpenAI, Anthropic, Google, or a local setup.
This route keeps the Chub AI interface free, but the model is not. A paid API like GPT-4 charges for every message, and heavy sessions add up fast.
Reverse proxies advertised as free carry real risk, since unknown operators can log your data and IP address. Official keys cost more but stay under your control.
How Chub AI Free Pricing Compares
At $5, the Chub AI entry plan undercuts most rivals.
Starting paid price per month across AI character apps
Character AI charges $9.99 a month for c.ai+. The Replika Pro tier runs $19.99. CrushOn sits close to Chub at about $4.99.
Free options spread across the category, though many fade. Figgs AI ran a free, no-account tool before it shut down in late 2024, and anime-focused apps such as Yodayo lean on free tiers with daily limits. The mix of a real free plan and a low $5 step up keeps Chub AI competitive.
FAQs
Is Chub AI free?
Yes. Chub AI has a free plan that costs $0. It covers basic AI models, character creation, chat export, and basic image generation. Paid plans start at $5 per month.
How much does Chub AI cost?
Chub AI has three tiers. The free plan is $0, Mercury costs $5 per month, and Mars costs $20 per month. Each higher tier unlocks larger models and more features.
What do you get on the Chub AI free plan?
The free plan includes basic AI models, chatting with public characters, creating your own, saving and exporting chats, and basic image generation. Larger models need a paid tier.
Is Chub AI free without an API key?
Yes. You can use the native free models without any API key. Connecting your own key from OpenAI or Anthropic is optional and adds separate usage costs.
Why are free Chub AI responses repetitive?
Free models are smaller test models with limited memory. They manage short chats but lose track during long roleplay. The $5 Mercury plan adds stronger models and 8K memory.


