This page states what has actually been measured, with the raw method behind each number - not marketing claims. Right now that is one feature: the maths-equation engine. Other features are listed below with an honest "not yet measured" note rather than an invented figure.
Azadi Math - equation dictation accuracy
Bangla itself scored 20/20 - perfect, one of 35 languages with a flawless result.
Methodology
A text-door test: 20 real equations (calculus, integrals, quantum mechanics, matrices, chemistry, series and limits) were sent as written spoken-form transcripts, in 70 languages, through the live production endpoint (azadi24.com/api/ai/complete) and checked by the actual shipped OMML converter - not a mock. It measures language understanding and equation accuracy; it does not include the audio/speech-recognition step. Raw per-language and per-equation results are committed in the source repository.
This was a text-door test: it sent written spoken-form transcripts (what someone would say out loud), not real audio - so it measures language understanding and mathematical accuracy, but excludes the speech-recognition step itself (accent, background noise, microphone quality). It ran against the real, live production endpoint and the exact converter shipped in the app - never a lab-only mock.
Result by equation
Each of these 20 equations was tested in all 70 languages (max 70 correct per row). The hardest cases involve deeply nested notation - the Schrodinger equation and a chemistry reaction were the two lowest scores, both still above 70%.
| Equation | Correct |
|---|---|
| Quadratic formula | 70/70 |
| Gaussian integral | 70/70 |
| Basel problem | 70/70 |
| Standard limit | 70/70 |
| Mass-energy equivalence | 70/70 |
| Euler's identity | 70/70 |
| Pythagorean theorem | 70/70 |
| Derivative definition | 70/70 |
| Binomial coefficient | 67/70 |
| Cube root | 70/70 |
| Schrodinger equation | 55/70 |
| 1D wave equation | 68/70 |
| Gauss's law | 64/70 |
| Newton's law of gravitation | 66/70 |
| Water formation (chemistry) | 50/70 |
| 2x2 determinant | 68/70 |
| Exponential series | 70/70 |
| Integration by parts | 70/70 |
| Log product rule | 70/70 |
| Trig identity | 70/70 |
Result by language
All 70 tested languages, out of 20 equations each. "Minor" means a small, cosmetically-off but mathematically-readable result; "wrong" means a genuinely incorrect equation.
| Language | Correct | Minor | Wrong |
|---|---|---|---|
| Afrikaans | 20/20 | - | - |
| Bangla (বাংলা) | 20/20 | - | - |
| Burmese | 20/20 | - | - |
| Chinese | 20/20 | - | - |
| Czech | 20/20 | - | - |
| Danish | 20/20 | - | - |
| Dutch | 20/20 | - | - |
| English | 20/20 | - | - |
| Finnish | 20/20 | - | - |
| French | 20/20 | - | - |
| German | 20/20 | - | - |
| Gujarati | 20/20 | - | - |
| Hebrew | 20/20 | - | - |
| Hindi | 20/20 | - | - |
| Indonesian | 20/20 | - | - |
| Japanese | 20/20 | - | - |
| Kannada | 20/20 | - | - |
| Malay | 20/20 | - | - |
| Marathi | 20/20 | - | - |
| Norwegian | 20/20 | - | - |
| Persian | 20/20 | - | - |
| Polish | 20/20 | - | - |
| Portuguese | 20/20 | - | - |
| Punjabi | 20/20 | - | - |
| Romanian | 20/20 | - | - |
| Russian | 20/20 | - | - |
| Sinhala | 20/20 | - | - |
| Slovak | 20/20 | - | - |
| Spanish | 20/20 | - | - |
| Swahili | 20/20 | - | - |
| Swedish | 20/20 | - | - |
| Tamil | 20/20 | - | - |
| Thai | 20/20 | - | - |
| Turkish | 20/20 | - | - |
| Vietnamese | 20/20 | - | - |
| Arabic | 19/20 | 1 | - |
| Azerbaijani | 19/20 | 1 | - |
| Bulgarian | 19/20 | 1 | - |
| Croatian | 19/20 | - | 1 |
| Estonian | 19/20 | 1 | - |
| Filipino | 19/20 | 1 | - |
| Georgian | 19/20 | 1 | - |
| Hungarian | 19/20 | 1 | - |
| Italian | 19/20 | - | 1 |
| Kazakh | 19/20 | 1 | - |
| Khmer | 19/20 | - | 1 |
| Korean | 19/20 | 1 | - |
| Lao | 19/20 | - | 1 |
| Lithuanian | 19/20 | - | 1 |
| Macedonian | 19/20 | 1 | - |
| Malayalam | 19/20 | 1 | - |
| Mongolian | 19/20 | 1 | - |
| Nepali | 19/20 | 1 | - |
| Serbian | 19/20 | - | 1 |
| Telugu | 19/20 | 1 | - |
| Ukrainian | 19/20 | 1 | - |
| Urdu | 19/20 | 1 | - |
| Yoruba | 19/20 | 1 | - |
| Zulu | 19/20 | 1 | - |
| Albanian | 18/20 | 1 | 1 |
| Amharic | 18/20 | 2 | - |
| Bosnian | 18/20 | 1 | 1 |
| Galician | 18/20 | 2 | - |
| Hausa | 18/20 | 2 | - |
| Uzbek | 18/20 | 1 | 1 |
| Armenian | 17/20 | 1 | 2 |
| Greek | 17/20 | 2 | 1 |
| Latvian | 17/20 | 2 | 1 |
| Slovenian | 17/20 | 2 | 1 |
| Catalan | 16/20 | 2 | 2 |
Voice typing: two modes, two accuracy profiles
Free and Pro voice typing are not the same experience, and stating one accuracy number for both would be misleading. There are two distinct modes:
- Polish mode - hold the shortcut, speak, release: the whole utterance is cleaned up by our AI (punctuation, grammar, mixed Bangla-English handled together) before it is typed. This is Azadi 24's most accurate mode. Pro accounts get it unlimited; a free account gets 15 polish-mode dictations every day - past the 15th a notification appears, and holding the shortcut falls back to the mode below until the next day (or a Pro upgrade).
- Standard streaming mode - the default tap/click typing: words appear in real time as you speak, free and unlimited for everyone, forever - it is what makes Bangla voice typing free-forever possible at all. It does not run the AI cleanup pass, so punctuation and mixed-language handling are lighter-touch than polish mode.
A real, controlled accuracy benchmark for both modes - using known test sentences dictated on the actual product, not a lab mock - is in progress and will be published here with the same methodology and raw-data standard as the maths benchmark above, once complete.
Not yet measured
These features are real and shipped, but do not yet have a published accuracy figure - re-testing them rigorously needs new measurement tooling and real paid API calls, which has not been done yet. We would rather say this plainly than publish an invented number.
- Voice-typing recognition accuracy for both modes (word/character error rate) - benchmark in progress, see above
- AI-polish output quality (grammar, cleanup)
- Translation accuracy
- Per-feature latency percentiles
Read more about how equation dictation works on the feature documentation page.