# Smallest.ai Pulse Review

> Smallest.ai Pulse review: Ultra-low-latency multilingual STT for voice agents. Verified pricing, features, and the strongest alternatives in Speech-to-text.

![Smallest.ai Pulse logo](https://www.versusref.com/logos/smallest-pulse.png)

Ultra-low-latency multilingual STT for voice agents

Among the 43 speech-to-text tools we track, Smallest.ai Pulse has the 30th-widest language coverage.

See pricing · facts verified Jul 24, 2026

## What we know about Smallest.ai Pulse

This is our verified profile of Smallest.ai Pulse, a speech-to-text apis platform - ultra-low-latency multilingual STT for voice agents. Every fact about Smallest.ai Pulse below carries the source it came from and the day we checked it.

Smallest.ai Pulse does not publish a public per-minute rate we have been able to verify, so the price figure here stays blank until we can confirm one. We would rather show nothing than a guessed number; if you have a current Smallest.ai Pulse quote, it is the fastest way for us to close that gap.

On capabilities, Smallest.ai Pulse covers language auto-detection, word-level timestamps, sentiment analysis, soc 2 type ii, self-host / on-prem option, and websocket streaming api. Each of those is verified against Smallest.ai Pulse's own docs or dashboard, not marketing copy.

For compliance, with Smallest.ai Pulse: SOC 2 Type II is in place. If you are in a regulated space, confirm the current posture with Smallest.ai Pulse before you commit, since these change plan by plan.

Among the 43 speech-to-text tools in our matrix, Smallest.ai Pulse leads with the 30th-widest language coverage; the fact sheet below has the raw numbers behind that placement.

Smallest.ai Pulse is not standing still: our record logs 1 verified fact change, each dated and sourced further down the page.

In total we track 23 verified facts for Smallest.ai Pulse 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 Smallest.ai Pulse fact sheet below.

## Smallest.ai Pulse pricing

Published rates: batch $0.005/min · streaming $0.005/min, verified Jul 20, 2026 ([source](https://smallest.ai/speech-to-text)).

| Monthly volume | Batch bill | Streaming bill |
| --- | --- | --- |
| 1K min/mo | $5 | $5 |
| 10K min/mo | $50 | $50 |
| 100K min/mo | $500 | $500 |

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 | 0.005 $/audio-min | Jul 20 | [source](https://smallest.ai/speech-to-text) |
| Streaming price per audio minute | 0.005 $/audio-min | Jul 20 | [source](https://smallest.ai/speech-to-text) |
| Pricing model | usage | Jul 20 | [source](https://smallest.ai/pricing) |
| Free tier quota | $10 in free credits | Jul 20 | [source](https://smallest.ai/pricing) |
| Published volume discounts | Enterprise custom pricing | Jul 20 | [source](https://smallest.ai/pricing) |
| Concurrency on base plan | 20 concurrent (agent plan) | Jul 20 | [source](https://smallest.ai/pricing) |
| Extra concurrency cost | None on PAYG; custom on Enterprise | Jul 20 | [source](https://smallest.ai/pricing) |

### Capabilities

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| WER (third-party benchmark) | 2.43 % WER | Jul 20 | [source](https://artificialanalysis.ai/speech-to-text) |
| WER (vendor-claimed) | ~5.42 % WER | Jul 20 | [source](https://docs.smallest.ai/waves/documentation/speech-to-text-pulse/overview) |
| Streaming latency (vendor-claimed) | ~64 ms | Jul 20 | [source](https://smallest.ai/speech-to-text) |
| Languages supported | ~38 | Jul 20 | [source](https://smallest.ai/speech-to-text) |
| Language auto-detection | ✓  Yes | Jul 20 | [source](https://docs.smallest.ai/waves/documentation/speech-to-text-pulse/overview) |
| Speaker diarization | ✓  Included | Jul 20 | [source](https://docs.smallest.ai/waves/documentation/speech-to-text-pulse/overview) |
| PII redaction | ✓  Included | Jul 20 | [source](https://docs.smallest.ai/waves/documentation/speech-to-text-pulse/overview) |
| PII redaction add-on price per minute | null | Jul 24 | [source](https://docs.smallest.ai/models/documentation/speech-to-text-pulse/overview) |
| Word-level timestamps | ✓  Yes | Jul 20 | [source](https://docs.smallest.ai/waves/documentation/speech-to-text-pulse/overview) |
| Sentiment analysis | ✓  Yes | Jul 20 | [source](https://smallest.ai/speech-to-text) |
| Priced audio-intelligence add-ons | Diarization, emotion, gender, sentiment, PII | Jul 20 | [source](https://smallest.ai/speech-to-text) |

### Compliance & trust

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| HIPAA BAA available | ◑  Paid add-on | Jul 20 | [source](https://smallest.ai/pricing) |
| SOC 2 Type II | ✓  Yes | Jul 20 | [source](https://smallest.ai/pricing) |
| Self-host / on-prem option | ✓  Yes | Jul 20 | [source](https://smallest.ai/pricing) |

### Build experience

| Fact | Value | Verified | Source |
| --- | --- | --- | --- |
| Official SDKs | Node, Python | Jul 20 | [source](https://smallest.ai/speech-to-text) |
| Websocket streaming API | ✓  Yes | Jul 20 | [source](https://docs.smallest.ai/waves/documentation/speech-to-text-pulse/overview) |

## Smallest.ai Pulse head-to-head

| Comparison | Record | Per use case |
| --- | --- | --- |
| [Smallest.ai Pulse vs Deepgram](https://www.versusref.com/stt/deepgram-vs-smallest-pulse/) | won 2 · lost 2 · tied 2 | Call Centers: won; Developers: lost; Dictation: tie; Medical: lost; Meetings: won; Self-Hosted: tie |

## What changed recently

| Date | Tool | Change |
| --- | --- | --- |
| Jul 24, 2026 | Smallest.ai Pulse | PII redaction add-on price per minute: 0.01 → n/a |

Source: https://www.versusref.com/stt/tools/smallest-pulse/