The failure mode

The transcript looks finished. It is in the wrong language.

Ask a global speech service to transcribe an Azerbaijani call and you usually get back fluent, confident text — in Turkish. Unless someone on your team reads Azerbaijani, you will not notice until the transcripts reach a report.

Overview

Why engines return Turkish

A speech engine that does not support a language rarely says so. It produces the nearest thing it knows, which for Azerbaijani is Turkish, and the result is fluent enough to pass review by anyone who cannot read it. In head-to-head testing on the same audio, two major 2026 speech services — one commercial, one open — produced Azerbaijani output that was effectively unusable, while Chinar handled the same recordings correctly. That gap is not a tuning difference: those services do not support the language at all.

What it does

What the comparison showed

Two major 2026 speech services, one commercial and one open, tested on the same audio.

Both produced Azerbaijani output that was effectively unusable.

Chinar handled the same recordings correctly.

The gap is a missing language, not a tuning setting.

The failure is silent: wrong output that reads as fluent text.

How it works

How to check your own engine

1Take a handful of real Azerbaijani recordings, not read-aloud samples
2Run them through your current engine and through Chinar
3Have someone who reads Azerbaijani compare the two outputs
4Judge on the same audio — anything else compares recordings, not engines
FAQ

Common questions

Which services were tested?

Two major 2026 speech services on the same audio — one commercial, one open. Neither supports Azerbaijani.

Why does the wrong output look right?

It is fluent text in a related language, so it reads as a working transcript to anyone who does not know Azerbaijani.

Could tuning fix it?

No — the language is not supported at all, which is a different problem from an engine that supports it poorly.

Explore more

More of what Chinar does

Get started

Hear Chinar on your own recordings

Request a demo and we will run Chinar against your own Azerbaijani audio — Chinar-L for the transcript people read, Chinar-F for the volume.