# Lemonfox.ai Review

> Lemonfox.ai review: Cheapest hosted Whisper large-v3 API for batch transcription. Verified pricing, features, and the strongest alternatives in Speech-to-text.

![Lemonfox.ai logo](https://www.versusref.com/logos/lemonfox.png)

Cheapest hosted Whisper large-v3 API for batch transcription

Among the 43 speech-to-text tools we track, Lemonfox.ai has the 5th-widest language coverage - a fit for multilingual and localization projects.

From $5/mo · facts verified Jul 20, 2026

## What we know about Lemonfox.ai

Lemonfox.ai is a speech-to-text apis platform: cheapest hosted Whisper large-v3 API for batch transcription. This profile tracks every Lemonfox.ai fact we have verified, each linked to a primary source and dated.

On pricing, Lemonfox.ai starts at $5 per month for its entry tier. That is the sticker rate: real production cost usually runs higher once you add a language model, a voice provider, and telephony minutes.

On capabilities, Lemonfox.ai covers language auto-detection, word-level timestamps, custom vocabulary / keyterm boosting, speech translation, and gdpr / eu data residency, and does not offer entity detection, sentiment analysis, and summarization endpoint. Each of those is verified against Lemonfox.ai's own docs or dashboard, not marketing copy.

Lemonfox.ai ranks the 5th-widest language coverage of the 43 speech-to-text tools we track, so where it lands for you depends on which of those matters more.

In total we track 21 verified facts for Lemonfox.ai today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the Lemonfox.ai fact sheet below.

## Lemonfox.ai pricing

Published rates: batch $0.0028/min, verified Jul 20, 2026 ([source](https://www.lemonfox.ai/apis/speech-to-text)).

| Monthly volume | Monthly bill (batch) |
| --- | --- |
| 1K min/mo | $2.78 |
| 10K min/mo | $27.78 |
| 100K min/mo | $277.80 |

Sticker rates only; diarization and PII redaction add-ons price in the stack builder.

## Fact sheet

### Pricing

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Batch price per audio minute | 0.003 $/audio-min | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Pricing model | hybrid | Jul 20 | [source](https://www.lemonfox.ai/) |
| Cheapest paid plan | $5 | Jul 20 | [source](https://www.lemonfox.ai/) |
| Free tier quota | First month free - 10M credits (30 hours STT) | Jul 20 | [source](https://www.lemonfox.ai/) |

### Capabilities

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Languages supported | 100 languages | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Language auto-detection | ✓  Yes | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Speaker diarization | ✓  Included | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| PII redaction | ✗  Not available | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Word-level timestamps | ✓  Yes | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Custom vocabulary / keyterm boosting | ✓  Yes | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Entity detection | ✗  No | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Sentiment analysis | ✗  No | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Summarization endpoint | ✗  No | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Speech translation | ✓  Yes | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |

### Compliance & trust

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| GDPR / EU data residency | ✓  Yes | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Self-host / on-prem option | ✗  No | Jul 20 | [source](https://www.lemonfox.ai/apis) |

### Build experience

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Official SDKs | None official - OpenAI-compatible (Python, JS examples) | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Max file size / duration | 100 MB direct upload; 1 GB via URL | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Supported audio formats | mp3, wav, flac, aac, opus, ogg, m4a, mp4, mpeg, mov, webm | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |
| Websocket streaming API | ✗  No | Jul 20 | [source](https://www.lemonfox.ai/whisper-api) |

### Commercial

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Hosted API available | First-party hosted API (api.lemonfox.ai, eu-api.lemonfox.ai) | Jul 20 | [source](https://www.lemonfox.ai/apis/speech-to-text) |

Source: https://www.versusref.com/stt/tools/lemonfox/