12 Best Gradium Speech-to-Text Alternatives (2026)

Gradium Speech-to-Text is cloud stt api with real-time websocket streaming, semantic vad turn detection, and live translation across 5 languages.. Teams that switch usually cite price at production volume, streaming latency for live agents, self-hosting and license control. The alternatives below are ranked by published head-to-head verdicts, not sponsorship.

On our facts, Gradium Speech-to-Text is the 40th-widest language coverage of 43 - the kind of gap teams cite when they go looking.

Not ready to switch? Full Gradium Speech-to-Text review →

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Reviewed by vsref Editorialfacts verified Sep 23, 2026Methodology →

Where to switch, by reason

Switching because of price at production volume →see Azure AI Speech (STT)

Switching because of streaming latency for live agents →see Cartesia Ink

Switching because of self-hosting and license control →see Mistral Voxtral Transcribe

Switching because of dictation →see Moonshine

Switching because of medical →see AssemblyAI

Amazon Transcribe

AWS-native STT API with deep AWS ecosystem integration and compliance coveragevs Gradium Speech-to-Text: ~23× the languages.

See pricingTry Amazon Transcribe →

Aqua Voice

AI-native system-wide dictation (YC W24) with a developer speech API (Avalon)vs Gradium Speech-to-Text: ~10× the languages.

From $8/moTry Aqua Voice →

AssemblyAI

Accuracy-led voice AI API for developers and voice agentsvs Gradium Speech-to-Text: ~20× the languages.

See pricingTry AssemblyAI →

Azure AI Speech (STT)

Enterprise-grade STT inside the Azure cloud ecosystemvs Gradium Speech-to-Text: ~30× the languages.

From $1,600/moVisit Azure AI Speech (STT) →

Cartesia Ink

Streaming STT for voice agents with native turn detectionvs Gradium Speech-to-Text: ~20× the languages.

From $5/moVisit Cartesia Ink →

Cohere Transcribe

Enterprise-grade open ASR for accurate batch transcriptionvs Gradium Speech-to-Text: ~3× the languages.

See pricingVisit Cohere Transcribe →

Deepgram

Developer-first realtime STT API for voice agents and transcription at scalevs Gradium Speech-to-Text: ~10× the languages.

See pricingVisit Deepgram →

DeepInfra (ASR)

Low-cost hosted ASR inference

See pricingVisit DeepInfra (ASR) →

Distil-WhisperOSS

Distilled Whisper: near-Whisper accuracy at a fraction of the size and up to 6x the speed, English-only, MIT-licensedvs Gradium Speech-to-Text: about half the languages.

See pricingVisit Distil-Whisper →

#10

ElevenLabs Scribe

Accuracy-led STT API from the leading AI audio companyvs Gradium Speech-to-Text: ~18× the languages.

From $6/moVisit ElevenLabs Scribe →

#11

faster-whisper / whisper.cppOSS

The de facto local Whisper runtimes: faster-whisper (Python/CTranslate2) and whisper.cpp (C/C++)vs Gradium Speech-to-Text: ~20× the languages.

See pricingVisit faster-whisper / whisper.cpp →

#12

FunASR / SenseVoice (Alibaba)OSS

Open-source industrial ASR toolkit

See pricingVisit FunASR / SenseVoice (Alibaba) →

All 46 speech-to-text apis alternatives

#13

Gladia

EU-based real-time and batch STT API built on the Solaria modelsvs Gradium Speech-to-Text: ~20× the languages.

See pricingVisit Gladia →

#14

Google Cloud Speech-to-Text

Hyperscaler STT API with Chirp foundation models and enterprise compliancevs Gradium Speech-to-Text: ~25× the languages.

See pricingVisit Google Cloud Speech-to-Text →

#15

OpenAI gpt-4o-transcribe

Flagship GPT-4o based transcription API from OpenAIvs Gradium Speech-to-Text: ~11× the languages.

See pricingVisit OpenAI gpt-4o-transcribe →

#16

xAI Grok Speech-to-Text

Low-cost hosted STT API on the Grok stackvs Gradium Speech-to-Text: ~5× the languages.

See pricingVisit xAI Grok Speech-to-Text →

#17

Groq (hosted Whisper)

Ultra-fast, low-cost hosted Whisper transcription API (no realtime streaming)vs Gradium Speech-to-Text: ~20× the languages.

See pricingVisit Groq (hosted Whisper) →

#18

Handy

Private local-first open-source dictationvs Gradium Speech-to-Text: ~20× the languages.

See pricingVisit Handy →

#19

IBM watsonx Speech to Text

Enterprise cloud STT APIvs Gradium Speech-to-Text: ~3× the languages.

See pricingVisit IBM watsonx Speech to Text →

#20

JigsawStack Speech-to-Text

Whisper-based STT endpoint inside an indie all-in-one small-model AI API platformvs Gradium Speech-to-Text: ~20× the languages.

From $27/moVisit JigsawStack Speech-to-Text →

#21

Kyutai STTOSS

Streaming-first open STT for self-hosted voice agentsvs Gradium Speech-to-Text: about half the languages.

See pricingVisit Kyutai STT →

#22

Lemonfox.ai

Cheapest hosted Whisper large-v3 API for batch transcriptionvs Gradium Speech-to-Text: ~20× the languages.

From $5/moVisit Lemonfox.ai →

#23

MacWhisper

Local-first macOS transcription and dictation app with one-time Pro pricingvs Gradium Speech-to-Text: ~20× the languages.

See pricingVisit MacWhisper →

#24

Microsoft MAI-Transcribe

Frontier-lab accuracy STT delivered through Azure Speechvs Gradium Speech-to-Text: ~9× the languages.

See pricingVisit Microsoft MAI-Transcribe →

#25

Monologue

Context-aware Apple dictation by Everyvs Gradium Speech-to-Text: ~20× the languages.

From $14.99/moVisit Monologue →

#26

MoonshineOSS

On-device streaming STT for live voice interfaces, from tiny edge models to Whisper Large v3-beating accuracyvs Gradium Speech-to-Text: ~60% more languages.

See pricingVisit Moonshine →

#27

NVIDIA Parakeet / Riva

Open-weights, GPU-accelerated self-hosted STT stackvs Gradium Speech-to-Text: ~5× the languages.

See pricingVisit NVIDIA Parakeet / Riva →

#28

Picovoice (Leopard / Cheetah)

Private, on-device STT SDK for apps and edge devicesvs Gradium Speech-to-Text: ~60% more languages.

See pricingVisit Picovoice (Leopard / Cheetah) →

#29

Qwen3-ASROSS

Open-weights multilingual ASR modelsvs Gradium Speech-to-Text: ~10× the languages.

See pricingVisit Qwen3-ASR →

#30

Rev AI

Transcription-heritage STT API with low per-hour pricing and open (non-commercial) Reverb modelsvs Gradium Speech-to-Text: ~11× the languages.

See pricingVisit Rev AI →

#31

Salad Transcription API

Ultra-low-cost batch transcription on a community GPU cloudvs Gradium Speech-to-Text: ~19× the languages.

See pricingVisit Salad Transcription API →

#32

Sarvam AI (Saarika / Saaras)

Indian-language sovereign speech-to-text APIvs Gradium Speech-to-Text: ~5× the languages.

See pricingVisit Sarvam AI (Saarika / Saaras) →

#33

sherpa-onnxOSS

On-device ASR/TTS runtime for edge and embedded

See pricingVisit sherpa-onnx →

#34

Smallest.ai Pulse

Ultra-low-latency multilingual STT for voice agentsvs Gradium Speech-to-Text: ~8× the languages.

See pricingVisit Smallest.ai Pulse →

#35

Soniox

Ultra-low-cost multilingual STT + real-time translation APIvs Gradium Speech-to-Text: ~12× the languages.

See pricingVisit Soniox →

#36

Speechmatics

Accuracy-first enterprise STT with flexible deployment (SaaS, container, on-prem)vs Gradium Speech-to-Text: ~11× the languages.

See pricingVisit Speechmatics →

#37

Superwhisper

AI voice-to-text dictation with context-aware formatting modesvs Gradium Speech-to-Text: ~20× the languages.

From $8.49/moVisit Superwhisper →

#38

Together AI Transcribe

Low-cost hosted Whisper STT APIvs Gradium Speech-to-Text: ~10× the languages.

See pricingVisit Together AI Transcribe →

#39

VoiceInk

Open-source, local-first Superwhisper / Wispr Flow alternative with one-time pricing

See pricingVisit VoiceInk →

#40

VoskOSS

Lightweight offline STT toolkit for edge and embedded devicesvs Gradium Speech-to-Text: ~4× the languages.

See pricingVisit Vosk →

#41

Mistral Voxtral Transcribe

Low-cost EU-based transcription API with Apache-2.0 open-weight modelsvs Gradium Speech-to-Text: ~2.5× the languages.

See pricingVisit Mistral Voxtral Transcribe →

#42

OpenAI Whisper (API)

Low-cost pay-as-you-go file transcription from OpenAI; no first-party streaming or diarizationvs Gradium Speech-to-Text: ~11× the languages.

See pricingVisit OpenAI Whisper (API) →

#43

WhisperKit (Argmax)OSS

On-device Apple Silicon STT (Whisper)vs Gradium Speech-to-Text: ~20× the languages.

From $1,330/moVisit WhisperKit (Argmax) →

#44

WhisperXOSS

Whisper + forced alignment + diarization pipeline for accurate word timestamps

See pricingVisit WhisperX →

#45

Willow Voice

Cross-platform AI dictation with smart formatting and enterprise-grade privacyvs Gradium Speech-to-Text: ~20× the languages.

From $15/moVisit Willow Voice →

#46

Wispr Flow

System-wide AI voice dictation with auto-editingvs Gradium Speech-to-Text: ~20× the languages.

From $12/moVisit Wispr Flow →

How the top Gradium Speech-to-Text alternatives compare

A closer look at the top 6: each Gradium Speech-to-Text alternative's standing among Speech-to-text APIs peers, its verdict record against Gradium Speech-to-Text, and the trade-offs of leaving.

1. Amazon Transcribe

Among the 43 speech-to-text tools we track, Amazon Transcribe has the 3rd-widest language coverage - a fit for multilingual and localization projects.

Seen from the other side, Gradium Speech-to-Text vs Amazon Transcribe: about half the languages.

Amazon Transcribe lists $0.006 per audio-minute (batch), verified July 2026.

Amazon Transcribe cost at monthly volume tiers
Monthly volume	Batch bill	Streaming bill
1K min/moSide project	$6	$10
10K min/moProduction app	$60	$100
100K min/moCall-center scale	$600	$1,000

Published rates: batch $0.006/min · streaming $0.01/min, verified Jul 20, 2026. Sticker rates only; diarization and PII redaction add-ons price in the stack builder. How we compute costs →

Amazon Transcribe review →

2. Aqua Voice

Among the 43 speech-to-text tools we track, Aqua Voice has the 28th-widest language coverage.

Before switching, weigh what stays behind - Gradium Speech-to-Text vs Aqua Voice: about half the languages.

Its published rate is $0.0065 per audio-minute (batch), verified July 2026.

Aqua Voice cost at monthly volume tiers
Monthly volume	Batch bill	Streaming bill
1K min/moSide project	$6.50	$6.50
10K min/moProduction app	$65	$65
100K min/moCall-center scale	$650	$650

Published rates: batch $0.0065/min · streaming $0.0065/min, verified Jul 20, 2026. Sticker rates only; diarization and PII redaction add-ons price in the stack builder. How we compute costs →

Aqua Voice review →

3. AssemblyAI

Among the 43 speech-to-text tools we track, AssemblyAI has the 12th-widest language coverage - a fit for multilingual and localization projects.

The reverse angle matters too - Gradium Speech-to-Text vs AssemblyAI: about half the languages.

Published pricing starts at $0.0035 per audio-minute (batch), verified July 2026.

AssemblyAI cost at monthly volume tiers
Monthly volume	Batch bill	Streaming bill
1K min/moSide project	$3.50	$7.50
10K min/moProduction app	$35	$75
100K min/moCall-center scale	$350	$750

Published rates: batch $0.0035/min · streaming $0.0075/min, verified Jul 20, 2026. Sticker rates only; diarization and PII redaction add-ons price in the stack builder. How we compute costs →

AssemblyAI review →

4. Azure AI Speech (STT)

Among the 43 speech-to-text tools we track, Azure AI Speech (STT) has the 1st-widest language coverage - a fit for multilingual and localization projects.

The reverse angle matters too - Gradium Speech-to-Text vs Azure AI Speech (STT): about half the languages.

Published pricing starts at $0.003 per audio-minute (batch), verified July 2026.

Azure AI Speech (STT) review →

5. Cartesia Ink

Among the 43 speech-to-text tools we track, Cartesia Ink has the 12th-widest language coverage - a fit for multilingual and localization projects.

The reverse angle matters too - Gradium Speech-to-Text vs Cartesia Ink: about half the languages.

Cartesia Ink review →

6. Cohere Transcribe

Among the 43 speech-to-text tools we track, Cohere Transcribe has the 35th-widest language coverage.

The reverse angle matters too - Gradium Speech-to-Text vs Cohere Transcribe: about half the languages.

Cohere Transcribe review →