ChatGPT vs Pi

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

Pi

• Talking through decisions, worries or difficult conversations
• People who would rather speak with an assistant than type
• Casual learning and language practice at no cost

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.

Pi

• The app listings describe conversation only, with no mention of file analysis, image generation or coding tools.
• The App Store listing shows English as the app's only language.
• The App Store gives the app an 18+ age rating.
• The listings cover iPhone, iPad and Android; no desktop app is listed, so on a computer Pi is used in a browser.

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.

Pi

Supportive conversation

Designed for preparing a hard conversation, talking through a difficult topic or a decision, or venting when you want someone to listen.

Voice mode

Talk with Pi live by voice instead of typing your side of the conversation.

Learning and language practice

Explains a new topic in conversation and can act as a partner for practicing a language.

Planning and brainstorming

Helps turn something new into an action plan, generates ideas and suggests things such as what to watch next.

Adapts over time

Inflection says Pi evolves and understands you better the more you talk with it.

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.

Pi

• Free$0

  Text and voice conversations with Pi on the web, iPhone, iPad and Android.

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.

Pi

No public discounts listed.