Is Avencera cheaper than Soniox?

Yes. Avencera transcribes from $0.06 an hour, or $0.07 with speaker labels. At 100 hours a month with speaker labels, Soniox Async costs $10.00 against $7.00 at Avencera, 1.4× as much.

Is Avencera more accurate than Soniox?

Avencera’s speaker labels make fewer errors than Soniox Async v5 on all 10 recording types in pyannoteAI’s benchmark. Averaged across them, the diarization error rate is 23.5% for Avencera and 36.6% for Async v5. Soniox transcribes words more accurately on the one published test that covers both, by up to 0.7 points. Async v5 scores 3.8% on the Artificial Analysis, against 4.5% for Parakeet v3.

Is Soniox cheaper than Avencera?

Close, but no. Soniox’s token billing comes to about the hourly price shown here for typical speech, a little above Avencera’s cheapest speaker transcript.

How do I switch from Soniox to Avencera?

Avencera uses OpenAI’s transcription API format, so any OpenAI SDK works. Send the same audio files you send Soniox, and map its response fields to the OpenAI-style transcript.

Soniox alternative: Avencera vs Soniox

At 100 hours a month with speaker labels, Soniox Async costs 1.4× as much as Avencera. Avencera’s speaker labels make fewer errors on all 10 recording types in pyannoteAI’s benchmark. Soniox transcribes words more accurately on the one published test that covers both, by up to 0.7 points.

By Praveen Perera. Prices and features checked October 23, 2026.

At a glance

Soniox bills its async model by tokens, which works out close to Avencera’s price per hour, with speaker labels included. It covers 60+ languages and scores well on independent tests.

Feature	Avencera	Soniox
Transcript, at 100 hours a month	$0.06 an hour	Async: $0.10 an hour (1.6×)
With speaker labels, at 100 hours a month	$0.07 an hour	Async: $0.10 an hour (1.4×)
Speaker labels	Included in the speaker transcript price	Async: included
Billing	Prepaid credit, no subscription	Async: pay as you go
Real-time streaming	No, recorded audio only	Yes
Languages	English with Parakeet v2, 25 European languages with v3	60+ languages
Longest file	2 hours or 100 MB per request, 24 hours as a job	300 minutes per file
API	OpenAI-compatible	Soniox’s own

Price with speaker labels

Audio a month	Avencera	Soniox Async
10 hours	$0.70	$1.00 1.4×
100 hours	$7.00	$10.00 1.4×
1,000 hours	$70.00	$100.00 1.4×
10,000 hours	$700.00	$1,000.00 1.4×

See every provider at any volume on the pricing page.

Accuracy

Speaker labels

Avencera’s speaker labels make fewer errors than Soniox Async v5 on all 10 recording types in pyannoteAI’s benchmark. Averaged across them, the diarization error rate is 23.5% for Avencera and 36.6% for Async v5.

Diarization error rate by recording type, lower is better

Radio interviews 12 recordings, 3 or 4 speakers

Avencera by 17.5 points

Avencera community-1: 10.4%. Soniox Async v5: 27.9%.
Clinical interviews 51 recordings, 2 or 3 speakers

Avencera by 5.0 points

Avencera community-1: 23.5%. Soniox Async v5: 28.5%.
Courtroom 12 recordings, 3 to 9 speakers

Avencera by 24.3 points

Avencera community-1: 11.6%. Soniox Async v5: 35.9%.
Phone calls 61 recordings, 2 speakers

Avencera by 13.1 points

Avencera community-1: 12.2%. Soniox Async v5: 25.3%.
Task dialogues 19 recordings, 2 speakers

Avencera by 12.4 points

Avencera community-1: 10.1%. Soniox Async v5: 22.5%.
Meetings 11 recordings, 3 to 6 speakers

Avencera by 20.0 points

Avencera community-1: 36.4%. Soniox Async v5: 56.4%.
Restaurant conversations 12 recordings, 4 to 8 speakers

Avencera by 11.6 points

Avencera community-1: 51.0%. Soniox Async v5: 62.6%.
Field interviews 22 recordings, 2 or 3 speakers

Avencera by 8.8 points

Avencera community-1: 18.2%. Soniox Async v5: 27.0%.
Lab interviews 12 recordings, 2 speakers

Avencera by 8.6 points

Avencera community-1: 14.1%. Soniox Async v5: 22.7%.
Web video 35 recordings, 1 to 7 speakers

Avencera by 9.5 points

Avencera community-1: 47.8%. Soniox Async v5: 57.3%.

Words

Soniox transcribes words more accurately on the one published test that covers both, by up to 0.7 points.

Word error rate by benchmark, lower is better

Artificial Analysis Word error rate, measured on each provider’s own API

Async v5 by 0.7 points

Avencera Parakeet v3: 4.5%. Soniox Async v5: 3.8%.

Choose Soniox if

Word accuracy matters most. Async v5 scores 3.8% on the Artificial Analysis, against 4.5% for Parakeet v3.
You need real-time streaming. Soniox offers it; Avencera transcribes recorded audio only.
You need more languages. Soniox lists 60+ languages.
You need an API today. Avencera opens soon.

Choose Avencera if

You want the lower bill. Soniox Async costs 1.4× as much at 100 hours a month with speaker labels.
You want better speaker labels for less. In pyannoteAI’s benchmark, Avencera’s speaker labels make fewer errors than Async v5 on all 10 recording types, 23.5% against 36.6% on average.
You want prepaid credit with no subscription, no minimum and no expiry.
You want a fixed price per hour of audio. Soniox bills by tokens, so the cost of an hour depends on how much is said in it.
Your audio stays yours. Avencera deletes it once the transcript is ready and never trains on it.

Switching to Avencera

Avencera serves OpenAI’s transcription API, so the official OpenAI SDKs work with a new base URL and model name. Set speaker_labels to true for a speaker on every segment.

from openai import OpenAI

client = OpenAI(base_url="https://api.avencera.com/v1", api_key="YOUR_AVENCERA_KEY")

with open("meeting.mp3", "rb") as audio:
    transcript = client.audio.transcriptions.create(
        model="avencera/parakeet-tdt-0.6b-v2",
        file=audio,
        extra_body={"speaker_labels": True},
    )

Questions

Is Avencera cheaper than Soniox?: Yes. Avencera transcribes from $0.06 an hour, or $0.07 with speaker labels. At 100 hours a month with speaker labels, Soniox Async costs $10.00 against $7.00 at Avencera, 1.4× as much.
Is Avencera more accurate than Soniox?: Avencera’s speaker labels make fewer errors than Soniox Async v5 on all 10 recording types in pyannoteAI’s benchmark. Averaged across them, the diarization error rate is 23.5% for Avencera and 36.6% for Async v5. Soniox transcribes words more accurately on the one published test that covers both, by up to 0.7 points. Async v5 scores 3.8% on the Artificial Analysis, against 4.5% for Parakeet v3.
Is Soniox cheaper than Avencera?: Close, but no. Soniox’s token billing comes to about the hourly price shown here for typical speech, a little above Avencera’s cheapest speaker transcript.
How do I switch from Soniox to Avencera?: Avencera uses OpenAI’s transcription API format, so any OpenAI SDK works. Send the same audio files you send Soniox, and map its response fields to the OpenAI-style transcript.