Both assistants are free to try and charge about twenty dollars a month to stop being limited, which is why the comparison moves to the bundle immediately.
TL;DR
OpenAI sells ChatGPT as Free, Go, Plus at $20 a month and Pro at $100, $200 or $500 a month, with usage allowances rather than feature gates separating the paid rungs. Google sells Gemini as Free at $0 with a Google account, AI Plus at $4.99, AI Pro at $19.99 and AI Ultra from $99.99 with a $199.99 tier at twenty times the Pro limits, bundling storage from 15 GB to 5 TB plus Flow credits and video perks. The main tiers differ by one cent, so the decision is about the bundle: a research-and-coding subscription on one side, a Google services package on the other.
OpenAI's ChatGPT pricing page lists four individual plans. Free provides unlimited text chats with limited uploads, image creation, voice chats, deep research, memory, Codex access and desktop Work access. Go sits above it with more messages, uploads, image creation, voice and longer memory, and the page notes that this plan may include ads; OpenAI does not print Go's price on that page, while the US App Store lists ChatGPT Go at $8.00. Plus is $20 a month and adds the advanced reasoning models, projects, scheduled tasks, custom GPTs, expanded Codex usage and early access to new features. Pro runs $100, $200 and $500 a month across three usage tiers, with the Pro reasoning tier, the longest Codex and Work sessions, an always-on agent, unlimited image creation and maximum deep research; only the $500 tier includes the Ultrafast mode. OpenAI's help centre confirms Plus at $20 a month with monthly billing and no annual option, and lists the Pro tiers at $100, $200 and $500.
Google's Gemini subscriptions page runs a five-step ladder. Free is $0 with a Google account and provides Gemini 3.6 Flash with varying access to 3.1 Pro, image generation and editing, Deep Research, Gemini Live, Canvas, Gems, Flow, Notebook and 15 GB of storage. Google AI Plus is $4.99 a month with twice the free usage, 400 GB of storage and 200 Flow credits. Google AI Pro is $19.99 a month with four times the free usage, 5 TB of storage, 1,000 Flow credits, higher access to Gemini 3 Pro and Deep Search, Gemini inside Gmail and Docs, a Google Home Premium standard plan and YouTube Premium Lite. Google AI Ultra starts at $99.99 a month, with a $199.99 tier at twenty times the AI Pro limits, 10,000 or 25,000 Flow credits, Project Genie, YouTube Premium and storage from 20 TB.
| Feature | ChatGPT | Gemini |
|---|---|---|
| Free tier | Free with unlimited text chats and limited uploads, images, voice and deep research | Free with a Google account: Flash access, image generation, Deep Research, 15 GB |
| Cheapest paid tier | Go: more messages, uploads, image and voice; price not printed on the page ($8.00 in the US App Store) | Google AI Plus $4.99 a month with twice the free usage and 400 GB |
| Main tier | Plus $20 a month with advanced reasoning, projects, tasks and custom GPTs | Google AI Pro $19.99 a month with four times the free usage and 5 TB |
| Heavy tier | Pro $100, $200 or $500 a month | Google AI Ultra from $99.99, with a $199.99 tier at twenty times AI Pro |
| Storage | No storage allowance listed on the individual plans | 15 GB free, 400 GB on Plus, 5 TB on Pro, from 20 TB on Ultra |
| Usage and context | Instant context 27K on Free, 54K on Go and Plus, 128K on Pro; reasoning context up to 400K on Pro | Limits stated as multiples of free (2x, 4x, up to 20x), refreshing every 5 hours up to a weekly limit |
| Extras | Codex, ChatGPT Work, deep research, voice and custom GPTs scale by tier | Flow credits (200 / 1,000 / 10,000-25,000), Home Premium, YouTube perks, Notebook |
| Ads | The Go plan may include ads, per the pricing page | No ad-bearing plan listed on the Gemini subscriptions page |
| Billing | Monthly on Free, Go, Plus and Pro; no annual option on individual plans | Monthly subscriptions, cancel any time per the plans page |
| Platform | Web, iOS and Android, plus desktop apps carrying ChatGPT Work and Codex | Web, Android and iOS, plus Gemini inside Gmail, Docs and other Google apps on paid tiers |
Pick ChatGPT if
Plus at $20 a month carries advanced reasoning, projects, scheduled tasks, custom GPTs and expanded Codex, while Pro $100 puts the longest sessions and the deepest usage under one subscription. Google's answer bundles storage and video perks that may already be paid for elsewhere.
Pick Gemini if
AI Pro at $19.99 raises limits four times over free, adds 5 TB across Drive, Gmail and Photos, and carries YouTube Premium Lite and a Home Premium plan inside the same charge. ChatGPT publishes no storage line at all, so the value depends on whether that storage is wanted.
We collected no independent reviews, ratings or user quotations for ChatGPT or Gemini in this run; model names, limit multipliers and bundle contents are the vendors' own. Prices were read from openai.com/chatgpt/pricing, OpenAI's help centre (Plus at $20, Pro at $100/$200/$500), the US App Store listing for Go, and gemini.google/subscriptions on the date shown above.
ChatGPT Plus is $20 a month and Google AI Pro is $19.99 a month — one cent apart. The bundles diverge immediately: Google adds 5 TB of storage and app integration, OpenAI adds projects, scheduled tasks, custom GPTs and Codex usage.
OpenAI lists ChatGPT Pro at $100, $200 and $500 a month, with Ultrafast only on the $500 tier. Google lists AI Ultra from $99.99 a month, with a $199.99 tier offering twenty times the AI Pro usage limits.
Yes on both. ChatGPT sells a Go plan between Free and Plus — its price is not printed on the pricing page, while the US App Store lists it at $8.00. Google sells AI Plus at $4.99 a month with twice the free usage.
Google: 15 GB on Free, 400 GB on AI Plus, 5 TB on AI Pro and from 20 TB on AI Ultra. OpenAI's individual plan table lists no storage allowance; files live inside chats and projects instead.
Both allow it. ChatGPT's free version gives unlimited text chats with stated limits on uploads, image creation, voice, deep research, memory and Codex. Gemini's free tier works with a Google account and includes Flash access, image generation, Deep Research and 15 GB.
Google states usage as multiples of the free tier — 2x on AI Plus, 4x on AI Pro, up to 20x on AI Ultra — refreshing every five hours until a weekly limit is reached, with AI credits sold to extend it. OpenAI publishes context windows per plan and lets Pro buyers add credits for eligible features such as Codex and Work.
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