Claude Hindi Support | Performance Scores, How to Use, and Japanese-Hindi Translation

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Claude is a multilingual AI assistant developed by Anthropic. It provides top-tier support for Hindi, achieving a high score of 96.7% relative to English performance (Claude Sonnet 4.5). This article covers Claude's Hindi performance data, how to use it, comparisons with Japanese, and how to apply it for Japanese-Hindi translation.

結論powered by Claude
Claude is a multilingual AI assistant developed by Anthropic. It provides top-tier support for Hindi, achieving a high score of 96.7% relative to English performance (Claude Sonnet 4.5). This article covers Claude's Hindi performance data, how to use it, comparisons with Japanese, and how to apply it for Japanese-Hindi translation.
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Claude's Hindi Support Status (2026)

Claude supports a wide range of languages, and Hindi is among those with high-level support. According to Anthropic's official multilingual performance documentation, evaluation scores on the MMLU benchmark (using human translations by professional translators) are as follows.

Model Hindi Score (relative to English)
Claude Sonnet 4.5 96.7%
Claude Haiku 4.5 92.4%

This zero-shot evaluation uses English performance as 100%, and Hindi scores nearly on par with Japanese (96.8–96.9%). It ranks within the top 5 among the 14 languages measured.

The official documentation states that "Claude maintains consistent performance not only in widely spoken languages but also in lower-resource languages" (Anthropic Multilingual Support), and Hindi is positioned as a category that receives particular focus.

Performance Comparison with Other Languages

Here is an overview of Claude Sonnet 4.5 scores by language (English = 100% baseline).

Language Score
Spanish 98.2%
Portuguese (Brazil) 97.8%
French 97.5%
Arabic 97.2%
Chinese (Simplified) 96.9%
Japanese 96.8%
Hindi 96.7%
Korean 96.7%
Bengali 95.4%
Swahili 91.1%

Source: Anthropic Official Multilingual Support Documentation

Hindi is within 0.1 percentage points of Japanese, placing it in a high-performance group just behind the major European languages. India has one of the world's largest Hindi-speaking populations (approximately 600 million speakers), and the numbers show that Anthropic is actively strengthening its presence in this market.

How to Use Claude in Hindi

No special settings or language switching are required to use Hindi with Claude.

  1. Open claude.ai in your browser and register or log in to your account
  2. Type a message in Devanagari script (e.g., हिंदी में बात करें) or in Hinglish (e.g., Claude kya hai, batao) in the chat input box
  3. After sending, Claude automatically detects the input language and responds in Hindi

Anthropic's official documentation recommends adding a phrase such as "use idiomatic expressions like a native speaker" to get more fluent output (Official Best Practices).

Devanagari Script vs. Romanized Input

Claude can correctly interpret both Devanagari (नमस्ते) and romanized transliteration (namaste), but Anthropic advises that "using the native script produces the best results." For long business documents or formal content, prioritizing Devanagari input is advantageous.

Hinglish Support

Hinglish is a style of expression widely used online that mixes Hindi and English. Claude can correctly interpret Hinglish based on context and responds to instructions like "Hinglish mein baat karo" (talk in Hinglish).

Japanese ⇔ Hindi Translation Use Cases

When Japanese companies enter the Indian market, Japanese ↔ Hindi translation presents challenges in terms of both cost and speed. Leveraging Claude can streamline your translation workflow.

Use Cases

  • Product manual translation: Translate Japanese instruction manuals into Hindi for use in Indian product packaging or web pages
  • Email correspondence: Translate Hindi emails from Indian business partners into Japanese, review them in Japanese, then have Claude draft replies in Hindi
  • Market research: Extract summaries in Japanese from Hindi-language Indian media articles
  • Marketing copy: Localize Japanese catchphrases into Hindi for the Indian market
  • Contract pre-translation: Use as a reference draft before legal review (final check should be done by a professional translator)

Sample Prompt (Japanese → Hindi)

以下の日本語テキストをヒンディー語(デーヴァナーガリー文字)に翻訳してください。
インドのビジネス文脈に適した丁寧な表現を使用し、
慣用的なヒンディー語を使ってください。

[翻訳したいテキスト]

India is a market where demand for AI tools is rapidly expanding, with Google, Microsoft, and Meta all strengthening their Hindi AI services for India. Search trend data from DuckDuckGo also shows an upward trend in queries such as "Claude AI Hindi guide," "Claude kya hai" (What is Claude), and "Claude Hindi tutorial."

Anthropic has been accelerating its global expansion since 2025, and the number of Indian users on claude.ai is on the rise. Adoption is growing for practical use cases including business document creation in Hindi, educational support, coding assistance, and content generation.

In India, mobile usage is prevalent, and the combination of voice input and Hindi is also becoming a practical and popular way to use the service. Claude's official iOS and Android apps support voice input, allowing users to speak in Hindi and carry on a conversation naturally.

Hindi Support Comparison: Claude vs. ChatGPT vs. Gemini

Aspect Claude ChatGPT (GPT-4o) Gemini
Hindi accuracy ◎ 96.7% score ○ High level ◎ Google data integration
Devanagari input ○ Supported ○ Supported ○ Supported
Hinglish understanding ○ Supported ○ Supported ○ Supported
India local information
Long-form processing ◎ 200K tokens
Business document quality

Gemini has an advantage in local news and regional information accuracy due to its rich Google Search data and India regional information. On the other hand, Claude's strengths are its long-form processing, business document quality, and safety through Constitutional AI, making it well-suited for formal Hindi documents, translation, and educational content generation.

Frequently Asked Questions

Q. If I speak to Claude in Hindi, will it respond in Hindi? A. Yes. When you send a prompt in Hindi, Claude automatically detects the language and responds in Hindi. If you want a response in English, simply add "Please answer in English" and it will switch.

Q. What is Claude's Hindi performance score? A. According to Anthropic's official MMLU benchmark (Claude Sonnet 4.5), the score is 96.7% relative to English. This is nearly on par with Japanese (96.8%) and places it in the top group among the 14 languages measured (official source).

Q. Does it understand Hinglish (mixed Hindi + English)? A. Yes, it does. It correctly interprets Hinglish sentences like "Claude ke baare mein batao" and can respond appropriately based on context.

Q. Can it be used for direct Japanese ⇔ Hindi translation? A. It is sufficiently practical for first drafts and reference translations. However, for highly specialized documents such as legal, medical, or government content, it is recommended that final verification be entrusted to a professional translator.

Q. Can it be used from a smartphone in India? A. Yes. The official claude.ai iOS and Android apps are available from India and support Hindi voice input.

Summary

Claude maintains a high performance score of 96.7% relative to English (Sonnet 4.5) for Hindi and operates at nearly the same accuracy level as Japanese. It supports both Devanagari script and Hinglish, and you can start chatting in Hindi right away at claude.ai without any special setup.

For Japanese companies working in the Indian market, Claude is a practical option for first-draft translation of Hindi content, localization support, and email correspondence assistance. Try it for free today.


References and Sources

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Clauder Navi 編集部
@clauder_navi

Anthropic の Claude / Claude Code を中心に、日本のエンジニア向けに最新動向と実務 を毎日発信。 運営方針 は メディアについて をご覧ください。