--- title: "Multilingual Accuracy Benchmark | IronMemo" description: "Public accuracy data for AI transcription across 15 languages. See how IronMemo compares to industry average. Test it yourself for free." url: https://ironmemo.com/proof language: en --- Public Benchmark # Multilingual Accuracy You Can Verify We publish our transcription accuracy data across 15 languages. No other AI meeting tool does this. Test it yourself for free. [Test Accuracy Now](https://app.ironmemo.com/sign-in?ref=proof_hero) [View Methodology](https://ironmemo.com/proof#methodology) Updated monthly - Last update: May 2026 ## Accuracy Across 15 Languages All figures based on internal testing across standardized audio samples (meeting-quality, multi-speaker). We invite independent verification. Contact us at Show email address | Language | IronMemo WER | Industry Avg WER | Improvement | | --- | --- | --- | --- | | English | 4.2% | 5.1% | 1.2 x | | Spanish | 6.8% | 15.2% | 2.2 x | | Russian | 7.1% | 22.4% | 3.2 x | | German | 5.9% | 14.8% | 2.5 x | | French | 6.1% | 13.9% | 2.3 x | | Portuguese | 7.4% | 18.1% | 2.4 x | | Japanese | 8.9% | 24.7% | 2.8 x | | Chinese (Mandarin) | 8.2% | 21.3% | 2.6 x | | Korean | 9.1% | 25.8% | 2.8 x | | Italian | 6.5% | 14.2% | 2.2 x | | Dutch | 7.8% | 17.6% | 2.3 x | | Polish | 8.4% | 23.1% | 2.8 x | | Turkish | 9.7% | 26.3% | 2.7 x | | Hindi | 10.2% | 28.9% | 2.8 x | | Arabic | 11.1% | 30.2% | 2.7 x | Average across 15 languages: 2.5x more accurate ## See the Difference Same audio. Same meeting. Different AI. Generic AI Model Russian business meeting Давайте обсудим \[нечитаемо\] проект. Сроки \[нечитаемо\] до конца квартал. Бюджет составл \[нечитаемо\] тысяч. 22.4% errors IronMemo (auto-selected model) Russian business meeting Давайте обсудим новый проект. Сроки - до конца второго квартала. Бюджет составляет двести тысяч. 7.1% errors [Try with your own recording](https://app.ironmemo.com/sign-in?ref=proof_before_after) ## Our Testing Methodology Transparency is a feature, not a risk. ### Standardized Test Set 100 audio samples per language. Meeting-quality recordings (not studio). Multi-speaker, real accents, background noise. ### 95-Model Research Base Champions are picked from a continuously updated research database: 95 speech models, 120+ independent sources, an evidence grade for every number, and a logged rationale for every switch. ### Fair Comparison Industry average calculated from public benchmarks and our own tests of 5 leading competitors on identical audio samples. ### Silence & Hallucination Tests Every candidate model is also fed silence, noise, and music. Models that invent text where nothing was said are banned from production - and each delivered transcript passes the same automated checks. ### Monthly Updates We re-run benchmarks every month as models improve. Numbers on this page reflect the latest test run. ### Open to Verification We welcome independent testing. Contact Show email address for test audio samples and methodology details. ## Why Accuracy Is Not Just a Number ### 15 min → 2 min Time spent fixing transcript errors per meeting. At 92.9% accuracy vs 77.6%, you save 13 minutes per meeting. ### $2,000/month Average cost of manual transcript correction for a 10-person multilingual team. IronMemo eliminates this entirely. ### Find anything Accurate transcripts mean accurate search. When your AI remembers meetings correctly, you find answers in seconds, not hours. ## How We Achieve This 1 ### Language Detection IronMemo auto-detects the language of your recording. No manual selection needed. 2 ### Best Model Selection Our system picks the most accurate transcription model specifically trained for that language. Not one-size-fits-all. 3 ### Quality Verification Post-processing layer checks for speaker diarization accuracy, timestamps, and formatting consistency. [Learn more about our AI](https://ironmemo.com/our-ai) ## Frequently Asked Questions ### What is WER (Word Error Rate)? WER measures the percentage of words incorrectly transcribed. Lower is better. 5% WER means 95 out of 100 words are correct. IronMemo averages 7.8% WER across 15 languages vs 19.5% industry average. ### How do you calculate 'industry average'? We test five leading AI meeting tools on identical audio samples and average their WER scores. We do not name specific competitors in results to avoid misleading comparisons, as model quality changes monthly. ### Can I verify these numbers myself? Yes. Create a free account and upload any recording. For formal benchmarking, contact Show email address for our test audio set. ### Why is English improvement only 1.2x? English has the most training data across all AI models, so competitors perform reasonably well. Our advantage grows dramatically for languages with less training data - up to 3.2x for Russian and 2.8x for Japanese. ### How often do you update these benchmarks? Monthly. AI models improve constantly. We re-run our full test suite every month and update this page with the latest results. ### Do you use the same model for all languages? No. This is our key differentiator. We automatically select the best-performing model for each language. English might use Model A, Russian - Model B, Japanese - Model C. You just see the result. ### What about mixed-language meetings? IronMemo handles code-switching (when speakers switch languages mid-sentence). The system detects language changes and applies the appropriate model for each segment. ### Is the free plan accuracy the same as the paid product? The free plan is the full product, not a limited demo: real transcripts with speakers, timecodes and summaries on your own recordings. Upload a meeting and judge the accuracy yourself - that is exactly what this page invites you to do. ### Learn More [Our AI](https://ironmemo.com/our-ai) How we select models and handle your data [Compare](https://ironmemo.com/vs) See how IronMemo compares to competitors ## Numbers Are Good. Experience Is Better. Upload a recording in any language. See the accuracy for yourself. Free. No credit card. [Try Now - Upload a Recording](https://app.ironmemo.com/sign-in?ref=proof_bottom_cta) [Compare with competitors](https://ironmemo.com/vs)