ChatLLM vs rabbit OS3 (2026): which should you pick?

Pick ChatLLM if

• Fits if you want many frontier models without a subscription to each lab
• Works for teams that want chat, an agent and app building on one bill

Look elsewhere if

• Not for you if you want to try before you pay, as there's no free plan or free trial
• Tight if you want the agent on Basic, which stops at 3 tasks of limited complexity and 3 Studio conversations
• Skip it if you expect refunds for poor results, since Abacus.AI says it gives none based on output or performance
• Watch out: heavy models, images, video and agent tasks burn through the 20,000 monthly credits faster
• Pricey if you're a team, as it's $10 for every user, and $20 each with Pro

Pick rabbit OS3 if

• Fits if you want to hand over a whole job, such as research or sorting files, in a sentence
• Makes sense if you already own the rabbit r1 and want it to do more

Look elsewhere if

• Pricey if you use it heavily: the plans jump from $20 to $99 to $199 a month
• Watch out: usage resets every Friday and what you don't use is lost
• Watch out: there's also a five-hour limit, so capacity comes back slowly after a busy stretch
• Tight if you top up: credits are $5 for 250 and need an active plan
• Skip it if you want to see figures first, because the page shows no usage numbers

ChatLLM

• There is no free plan or free trial. Billing is monthly at $10 per user, or $20 per user with Pro.
• Usage runs on credits: Basic has 20,000 a month, and heavy models, images, video and agent tasks use them faster. A set of lighter models stays unlimited.
• Basic limits the Abacus AI Agent to 3 tasks of limited complexity and Abacus AI Studio to 3 conversations. Pro removes both caps.
• Abacus.AI states that it does not give refunds based on the output or performance of its models and agents.

rabbit OS3

• Included usage and phone minutes refresh every Friday at 12:00 UTC and unused usage does not carry over.
• Each plan also has a five-hour usage limit, so capacity returns gradually.
• Extra credits cost $5 for 250, $40 for 2,500 or $120 for 10,000, and buying them needs an active plan.
• The pricing page shows no usage figures for the plans, only relative levels.

ChatLLM

100+ models with automatic routing

Chat with models from OpenAI, Anthropic, Google, xAI and open-weight labs, or leave the picker on Auto and RouteLLM chooses a model for each task.

Abacus AI Agent

A general-purpose agent that builds and hosts apps from a description, creates slides, documents and research reports, and automates work with tasks and triggers.

Image and video generation

Image models include Nano Banana Pro, GPT Image and FLUX. Video generation runs through Abacus AI Studio with models such as Veo, Kling and Seedance.

Documents, data and web search

Analyzes uploaded PDFs, Word and PowerPoint files, charts data from CSV and Excel files, searches the web and runs generated code in a playground beside the chat.

Team workspace and connectors

Invite any number of users at the per-user price, organize chats and files in projects, and connect Slack, Microsoft Teams, Google Drive, SharePoint, Confluence and other systems.

Mobile apps, extension and desktop tools

iOS and Android apps with voice mode, a Chrome extension, and Abacus AI Desktop with a coding agent and CLI are included with the subscription.

rabbit OS3

Describe a result, not the steps

OS3 works through the steps of a request and comes back when a decision is the user's.

Connected computers

It can use files and tools on connected computers, including sorting and renaming files, and one task can involve more than one machine.

Phone calls

Plans include weekly phone minutes for standard US and Canada numbers, up to 15 minutes a call.

Several ways to reach it

Use it in a browser, the desktop app for macOS and Windows, iMessage, RCS or SMS, a paired Telegram bot, or by speaking to r1.

Hosted or bring your own model

The rabbit-hosted model is the default. A custom model with your own API key, a local model or a custom endpoint is not charged by rabbit.

ChatLLM

• Basic$10

  per user / month

  Every chat, image and video model, 20,000 credits a month, 3 AI Agent tasks of limited complexity and limited Abacus AI Studio use.

• Pro$20

  per user / month (Basic plus a $10 upgrade)

  30,000 credits a month, unrestricted Abacus AI Agent and Studio use while credits last, a stronger agent and the always-on SuperComputer.

• Abacus.AI EnterpriseFrom $5000

  billing period not stated

  The separate enterprise platform for organizations that need enterprise features, sold through the sales team.

rabbit OS3

• Free usage$0

  Free usage of the rabbit-hosted model for tasks and images, plus 30 phone minutes, for every new account.

• $20 plan$20

  per month, billed monthly

  Everyday use: weekly included usage and 30 phone minutes a week.

• $99 plan$99

  per month, billed monthly

  Frequent use through the working day: more included usage and 60 phone minutes a week.

• $199 plan$199

  per month, billed monthly

  Heavy use: the most included usage and 120 phone minutes a week.

ChatLLM

• Other savings

  $7 for the first month of Basic

  New subscribers are charged $7 instead of $10 for the first month, then $10 billed monthly. The discounted month comes with 14,000 credits instead of 20,000.

rabbit OS3

No public discounts listed.