ChatGPT vs Sider

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

Sider

• People who want an AI side panel on every browser tab
• Comparing answers from several models in a single chat
• Summarizing and translating pages, PDFs and YouTube videos

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.

Sider

• Sider's website answers automated readers with a security check, so the prices here are US App Store in-app prices and web prices may differ.
• The store listings do not say how much usage the free tier includes or what each paid plan adds.
• Sider told an App Store reviewer that the Pocket Plan is for mobile use and that its credits cannot be spent in the desktop browser.
• The App Store also lists legacy Basic subscriptions and a $40.00 Plus plan without describing them, and Google Play shows items from $9.99 to $999.99.

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.

Sider

Sidebar with many models

The extension opens a side panel on any tab for chatting with GPT, Claude, Gemini, Grok, DeepSeek and other models. A Fusion model picks a model for each request automatically.

AI group chat

Put the same question to several models in one chat by @-mentioning them, then compare their answers as they arrive.

Chat with files and pages

Ask questions about PDFs, images, audio files, a web page or several open tabs. The mobile app accepts more than 30 file formats as well as images and URLs.

Reading and video summaries

Summarizes articles, web pages and PDFs, and condenses YouTube videos into highlights, with bilingual subtitles available while watching.

Writing and translation

Offers writing help in any input box, rewording and tone changes, a grammar checker, and translation of selected text, full pages, PDFs and images into 50+ languages.

Wisebase and Sider Claw

Wisebase is a knowledge base for uploaded files and saved websites. Claw, in the mobile app, takes a request and researches, compares, extracts and compiles the results.

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.

Sider

• Free$0

  The apps and the browser extension are free to install. The store listings do not state how much usage is included without a plan.

• Pocket Plan$49.99

  per year (US App Store in-app purchase)

  A plan for mobile use. Sider's reply to an App Store review says Pocket credits cannot be used in the desktop browser.

• Basic$9.99

  per month (US App Store in-app purchase)

  Listed as Sider Basic Plan Monthly. The App Store listing does not describe what the plan includes.

• Pro$19.99

  per month (US App Store in-app purchase)

  Listed as Sider Pro Plan Monthly. The App Store listing does not describe what the plan includes.

• Unlimited$39.99

  per month, or $299.99 per year (US App Store)

  Listed as Sider Unlimited Plan, monthly or yearly. The App Store listing does not describe what the plan includes.

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.

Sider

• Annual discount

  Unlimited costs less when paid yearly

  The US App Store lists the Unlimited plan at $39.99 a month or $299.99 a year. Twelve monthly payments come to $479.88, so the yearly price is about 37% lower.