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.
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 benchmark@ironmemo.com
| Language | IronMemo WER | Industry Avg WER | Improvement |
|---|---|---|---|
| English | 4.2% | 5.1% | 1.2x |
| Spanish | 6.8% | 15.2% | 2.2x |
| Russian | 7.1% | 22.4% | 3.2x |
| German | 5.9% | 14.8% | 2.5x |
| French | 6.1% | 13.9% | 2.3x |
| Portuguese | 7.4% | 18.1% | 2.4x |
| Japanese | 8.9% | 24.7% | 2.8x |
| Chinese (Mandarin) | 8.2% | 21.3% | 2.6x |
| Korean | 9.1% | 25.8% | 2.8x |
| Italian | 6.5% | 14.2% | 2.2x |
| Dutch | 7.8% | 17.6% | 2.3x |
| Polish | 8.4% | 23.1% | 2.8x |
| Turkish | 9.7% | 26.3% | 2.7x |
| Hindi | 10.2% | 28.9% | 2.8x |
| Arabic | 11.1% | 30.2% | 2.7x |
Average across 15 languages: 2.5x more accurate
See the Difference
Same audio. Same meeting. Different AI.
Generic AI Model
Russian business meeting
IronMemo (auto-selected model)
Russian business meeting
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.
Fair Comparison
Industry average calculated from public benchmarks and our own tests of 5 leading competitors on identical audio samples.
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 benchmark@ironmemo.com 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
Language Detection
IronMemo auto-detects the language of your recording. No manual selection needed.
Best Model Selection
Our system picks the most accurate transcription model specifically trained for that language. Not one-size-fits-all.
Quality Verification
Post-processing layer checks for speaker diarization accuracy, timestamps, and formatting consistency.
Frequently Asked Questions
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.
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.
Yes. Create a free account and upload any recording. For formal benchmarking, contact benchmark@ironmemo.com for our test audio set.
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.
Monthly. AI models improve constantly. We re-run our full test suite every month and update this page with the latest results.
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.
IronMemo handles code-switching (when speakers switch languages mid-sentence). The system detects language changes and applies the appropriate model for each segment.
Yes. The free plan uses the exact same AI pipeline. What you see there is what you get in the full product.
Numbers Are Good. Experience Is Better.
Upload a recording in any language. See the accuracy for yourself. Free. No credit card.