ChatGPT vs ChatLLM

ChatGPT

• General-purpose help with writing, questions and brainstorming
• People who want chat, voice, images and web search in one assistant
• Trying an AI assistant at no cost before paying

ChatLLM

• People who want many frontier models at a low per-user price
• Teams that want chat, an agent and app building in one subscription
• Developers who want an API that routes between models

ChatGPT

• Pro is sold at three price points, $100, $200 or $500 per month, well above the $20 Plus plan.
• Business requires at least 2 users. SCIM, EKM and role-based access control are reserved for Enterprise and Edu.
• OpenAI began testing ads in the free version for logged-in adult US users in January 2026, according to Wikipedia.
• OpenAI's pricing page says the Go plan may include ads.

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.

ChatGPT

Conversational help

Answers questions, drafts and reworks text, explains topics and reads uploaded photos in a chat, with history synced across your devices.

Image generation

Creates original images from a description, or transforms existing images from a short instruction.

Advanced Voice Mode

Hold a real-time spoken conversation in the mobile app by tapping the soundwave icon.

Search and Deep Research

ChatGPT Search draws on the web for more up-to-date answers, and Deep Research generates a report from extensive web searches.

Codex

A coding agent that runs on the web, in a CLI, in an IDE extension and on iOS from the Plus plan, with integrations such as automatic code review and Slack.

GPTs and agents

GPTs customize ChatGPT's behavior for a specific use case, and ChatGPT agent carries out multi-step tasks.

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.

ChatGPT

• Free$0

  Unlimited text chats, with limits on uploads, image creation, voice chats, deep research and memory.

• Go$8

  per month

  More messages with tools, more uploads, image creation and voice chats than Free, and longer memory. OpenAI notes this plan may include ads.

• Plus$20

  per month

  Advanced reasoning models, expanded deep research and memory, plus projects, scheduled tasks and custom GPTs.

• Business$20

  per user / month, billed annually

  For 2 or more users: a dedicated workspace with admin controls, SAML SSO and MFA. $25 per user / month when billed monthly.

• ProFrom $100

  per month

  A choice of three usage tiers at $100, $200 or $500 per month, with the highest limits, pro reasoning and an always-on agent.

• Enterprise & EduCustom

  Sold through sales, with priority request processing, SCIM, EKM, user analytics, domain verification and role-based access control.

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.

ChatGPT

• Annual discount

  Business is cheaper when billed annually

  OpenAI's pricing page lists Business at $20 per user / month when billed annually, against $25 per user / month when billed monthly.

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.