Best free OpenAI Whisper alternatives

Looking for a free alternative to OpenAI Whisper? Here are 9 speech & transcription engines worth trying — 9 with a free tier. OpenAI Whisper itself is free.

ToolOpenAI Whisper (you searched)NVIDIA Parakeetsherpa-onnxNVIDIA Canary-Qwen 2.5B
Pricingfreefreefreefree
Best forOpen-source speech-to-text, run locally freeTops the Hugging Face Open ASR Leaderboard with 6.05% average WER at 0.6B paramsOffline speech-to-text, text-to-speech, VAD and speaker diarization without internetSpeech-recognition plus LLM hybrid model that transcribes and can summarize or answer questions about audio
VisitOpen ↗Open ↗Open ↗Open ↗

OpenAI Whisper alternatives — straight answers

What is the best free alternative to OpenAI Whisper?

NVIDIA Parakeet is the closest free alternative to OpenAI Whisper: same Speech & Transcription Engines sub-category, and it is free. Tops the Hugging Face Open ASR Leaderboard with 6.05% average WER at 0.6B params

Are there free OpenAI Whisper alternatives?

Yes — 9 of the 9 alternatives listed here are free or freemium: NVIDIA Parakeet, sherpa-onnx, NVIDIA Canary-Qwen 2.5B, Deepgram, AssemblyAI. None of them are paid-only.

Is OpenAI Whisper free?

OpenAI Whisper is free. There is no paid plan attached to it in the catalog.

How were these OpenAI Whisper alternatives chosen?

They are the other tools in Speech & Transcription Engines, then the rest of AI Models & Local Execution, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.

All OpenAI Whisper alternatives

Browse Speech & Transcription Engines →

NVIDIA Parakeet

Speech & Transcription Engines
free

✦ WhyA OpenAI Whisper alternative — Tops the Hugging Face Open ASR Leaderboard with 6.05% average WER at 0.6B params.

  • Tops the Hugging Face Open ASR Leaderboard with 6.05% average WER at 0.6B params
  • CC-BY-4.0 license, free for commercial and non-commercial use
  • RTFx ~3,386 — extremely fast inference relative to accuracy

sherpa-onnx

Speech & Transcription Engines
freeNew

✦ WhyA OpenAI Whisper alternative — Offline speech-to-text, text-to-speech, VAD and speaker diarization without internet.

  • Offline speech-to-text, text-to-speech, VAD and speaker diarization without internet
  • Runs on Android, iOS, Raspberry Pi, WebAssembly and desktop with many language bindings
  • Apache-2.0

NVIDIA Canary-Qwen 2.5B

Speech & Transcription Engines
freeNew

✦ WhyA OpenAI Whisper alternative — Speech-recognition plus LLM hybrid model that transcribes and can summarize or answer questions about audio.

  • Speech-recognition plus LLM hybrid model that transcribes and can summarize or answer questions about audio
  • Topped the Hugging Face Open ASR leaderboard at release (English)
  • CC-BY-4.0 weights

Deepgram

Speech & Transcription Engines
freemium

✦ WhyA OpenAI Whisper alternative — Fast, accurate speech-to-text API.

  • Fast, accurate speech-to-text API
  • Real-time streaming and diarization
  • Voice-agent building blocks
  • Free credits to start

AssemblyAI

Speech & Transcription Engines
freemium

✦ WhyA OpenAI Whisper alternative — Speech-to-text with audio intelligence.

  • Speech-to-text with audio intelligence
  • Summaries, topics and sentiment
  • Speaker diarization
  • Free tier for developers

Mistral Voxtral

Speech & Transcription Engines
freemium

✦ WhyA OpenAI Whisper alternative — Apache 2.0 open-weight models (24B and 3B) downloadable from Hugging Face.

  • Apache 2.0 open-weight models (24B and 3B) downloadable from Hugging Face
  • Built-in Q&A/summarization over audio, not just raw transcription
  • Function-calling directly from voice input for agent workflows

Speechmatics

Speech & Transcription Engines
freemium

✦ WhyA OpenAI Whisper alternative — Free starting credit with no card required, 56+ language support.

  • Free starting credit with no card required, 56+ language support
  • Model-training discount program cuts costs 33% for data-sharing customers
  • On-premises/VPC deployment for privacy-sensitive enterprise use

Soniox

Speech & Transcription Engines
freemium

✦ WhyA OpenAI Whisper alternative — Real-time speech-to-text priced well under typical competitor rates.

  • Real-time speech-to-text priced well under typical competitor rates
  • Combines transcription + translation in one streaming API call
  • Diarization and speech translation bundled at no extra cost

ElevenLabs Scribe

Speech & Transcription Engines
freemium

✦ WhyA OpenAI Whisper alternative — Scribe v2 Realtime transcribes in under 150ms latency.

  • Scribe v2 Realtime transcribes in under 150ms latency
  • Dynamic audio-event tagging (laughter, footsteps) beyond plain words
  • Keyterm prompting locks in up to 1,000 specified terms for accuracy

OpenAI Whisper head-to-head