By job role ・ Customer support

Best AI tools for customer support — ranking

A recommended ranking of AI for replies, FAQ writing, summarizing and multilingual support, compared for support teams by language and response quality.

A. Which AI is best for Customer support?

#1 is ChatGPT. Then Claude and Google Gemini. Ordered with a focus on Japanese support・File reading.

Use cases

AI use cases for Customer support

Writing replies to inquiriesCreating FAQs & help articlesSummarizing long threadsMultilingual supportAdjusting the tone of complaint responses

ChatGPT

OpenAI ・ Popularity score 77.1 ・ share 77.6%

Free tier

$8/mo+

OpenAI's AI chat — the default choice, leading the global AI chatbot market share by a wide margin.

Japanese support: ○File reading: ○View data →

Claude

Anthropic ・ Popularity score 36.3 ・ share 3.8%

Free tier

$20/mo+

Anthropic's AI chat — praised for long-form writing, coding and careful prose; share is trending up.

Japanese support: ○File reading: ○View data →

Google Gemini

Google ・ Popularity score 37.2 ・ share 7.0%

Free tier

$7.99/mo+

Google's AI chat — strong at search and Google-service integration; share is rising fast, especially in Japan.

Japanese support: ○File reading: ○View data →

Microsoft Copilot

Microsoft ・ Popularity score 36 ・ share 3.8%

Free tier

$20/mo+

Microsoft's assistant — its strength is integration with Windows and Office.

Japanese support: ○File reading: ○View data →

Source: StatCounter (popularity share) + each official site (features, pricing) ／ Captured: 2026-06 ／ Reference ranking by our editors

Frequently asked questions

Which AI is the best for Customer support?

ChatGPT. The rating prioritizes support for Japanese support・File reading and popularity.

What kind of work can Customer support use AI for?

It can help with Writing replies to inquiries, Creating FAQs & help articles, Summarizing long threads, Multilingual support and more.

Can I use it for free?

Many of the AIs featured have a free plan, so we recommend trying them for free first before considering a paid plan.

Explore other roles & use cases

AI for Engineers→AI for Marketers→AI for Sales→AI for Writers→AI for Designers→Overall AI popularity ranking→

⚠ 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.