multilingual-support changedbuild-with-claude/multilingual-support
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1515The following table shows zero-shot chain-of-thought evaluation scores for Claude models across languages, expressed as a percentage relative to English performance (100%):
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17| Language | Claude Sonnet 4.51 | Claude Haiku 4.51 |
18| --------------------------------- | ------------------ | ----------------- |
19| English (baseline, fixed to 100%) | 100% | 100% |
20| Spanish | 98.2% | 96.4% |
21| Portuguese (Brazil) | 97.8% | 96.1% |
22| Italian | 97.9% | 96.0% |
23| French | 97.5% | 95.7% |
24| Indonesian | 97.3% | 94.2% |
25| German | 97.0% | 94.3% |
26| Arabic | 97.2% | 92.5% |
27| Chinese (Simplified) | 96.9% | 94.2% |
28| Korean | 96.7% | 93.3% |
29| Japanese | 96.8% | 93.5% |
30| Hindi | 96.7% | 92.4% |
31| Bengali | 95.4% | 90.4% |
32| Swahili | 91.1% | 78.3% |
33| Yoruba | 79.7% | 52.7% |
17| Language | Claude Sonnet 4.5 (deprecated)1 | Claude Haiku 4.51 |
18| --------------------------------- | ------------------------------- | ----------------- |
19| English (baseline, fixed to 100%) | 100% | 100% |
20| Spanish | 98.2% | 96.4% |
21| Portuguese (Brazil) | 97.8% | 96.1% |
22| Italian | 97.9% | 96.0% |
23| French | 97.5% | 95.7% |
24| Indonesian | 97.3% | 94.2% |
25| German | 97.0% | 94.3% |
26| Arabic | 97.2% | 92.5% |
27| Chinese (Simplified) | 96.9% | 94.2% |
28| Korean | 96.7% | 93.3% |
29| Japanese | 96.8% | 93.5% |
30| Hindi | 96.7% | 92.4% |
31| Bengali | 95.4% | 90.4% |
32| Swahili | 91.1% | 78.3% |
33| Yoruba | 79.7% | 52.7% |
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35351 With [extended thinking](https://platform.claude.com/docs/en/build-with-claude/extended-thinking).
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No line in this hunk matches that.