AI COMPARE

ChatGPT vs Google Gemini

Compare the differences, pricing, share and features of ChatGPT (OpenAI) and Google Gemini (Google) with data. We explain which one to pick by use case.

A. Bottom line: which should you pick?
For overall popularity and share, ChatGPT leads on share, but both support the main features, so neither is clearly better by use case. Choosing by price and ease of use is the practical approach.
ChatGPT
OpenAI
68.4%Worldwide share
$8Cheapest paid/mo
18.5%Worldwide share
$4.99Cheapest paid/mo

Feature differences (ChatGPT vs Google Gemini)

FeatureChatGPTGoogle Gemini
Japanese support○○
Image input○○
Image generation○○
Voice chat○○
File reading○○
Web search○○
Code generation○○
API○○
Mobile app○○

Pricing differences

ChatGPT pricing
Free$0
Go$8
Plus$20
Pro 100$100
Pro 200$200
Pro 500$500
ChatGPT pricing details →
Google Gemini pricing
Free$0
Google AI Plus$4.99
Google AI Pro$19.99
Google AI Ultra$99.99
Google AI Ultra (20x)$199.99
Google Gemini pricing details →

Source: Official pricing of each tool (reference values) / Captured: 2026-10-17 / Check the official site for the latest

Free plans compared: ChatGPT vs Google Gemini

When both can be tried for free, the differences in what the free plans include and their limits decide it. Listed as far as official pages state (— = not stated).

ItemChatGPTGoogle Gemini
ModelsGPT-6 LunaGemini Flash-Lite
Usage limitUnlimited everyday text chats (separate limits for uploads, images, etc.)Resets every 5 hours, with a weekly cap
Web search○○
Image generation△ (limited)○
File & image upload△ (limited)○
Voice chat△ (limited)○
Deep Research△ (limited)△ (limited)
Training on your inputsOn by default; can be turned off in settingsCan be turned off in settings (default not stated officially)

Source: Each vendor's official pricing and help pages / Captured: 2026-10-17

Verdict by purpose: which should you pick?

PurposeRecommendedBasis
WritingBoth support itSame feature support. For reference, ChatGPT has the larger global share (68.4% / 18.5%); share measures popularity, not performance.
Search & researchBoth support itSame feature support. For reference, ChatGPT has the larger global share (68.4% / 18.5%); share measures popularity, not performance.
CodingBoth support itSame feature support. For reference, ChatGPT has the larger global share (68.4% / 18.5%); share measures popularity, not performance.
Image generationBoth support itSame feature support. For reference, ChatGPT has the larger global share (68.4% / 18.5%); share measures popularity, not performance.
Using it for freeGoogle GeminiFree-plan differences: Image generation: ChatGPT △ / Google Gemini ○ · File & image upload: ChatGPT △ / Google Gemini ○ · Voice chat: ChatGPT △ / Google Gemini ○
Keeping costs downGoogle GeminiCheapest paid plan: ChatGPT $8 / Google Gemini $4.99

Verdicts are based on each AI's feature support (reference values compiled by our editors from official information) and published prices. We have not compared output quality itself.

Frequently asked questions

ChatGPT vs Google Gemini: which should you pick?
ChatGPT has the larger global share, but both support the main features, so neither is clearly better by use case. Choosing by price and ease of use is the practical approach.
What are the pricing differences between ChatGPT and Google Gemini?
ChatGPT has a free plan, and paid plans start at $8/mo. Google Gemini has a free plan, and paid plans start at $4.99/mo (reference values).
Which has the higher share, ChatGPT or Google Gemini?
For Oct 2026, worldwide market share is about 68.4% for ChatGPT and about 18.5% for Google Gemini (StatCounter).

Other comparisons

⚠ These rankings are reference values based on public market-share data, web-traffic estimates and editorial research, and do not represent a complete count of every user of each AI tool. Rankings change with the measurement method (web-visit share vs. market share, etc.). Always check each official site for the latest information.