Best free OpenAI Whisper alternatives

✦ 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

✦ WhyA OpenAI Whisper alternative — 70x real-time transcription speed via batched inference on top of Whisper.

• 70x real-time transcription speed via batched inference on top of Whisper
• Adds wav2vec2 forced alignment for accurate word-level timestamps Whisper lacks natively
• Built-in speaker diarization and VAD preprocessing to cut hallucinations

✦ 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

✦ 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

✦ 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

✦ 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

✦ 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

✦ 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

✦ WhyA OpenAI Whisper alternative — The default way to run LLMs locally.

• The default way to run LLMs locally
• One command to run Llama, Qwen, DeepSeek…
• OpenAI-compatible local API
• Free and open-source