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Reference catalog · updated continuously

Transcription systems, scored on a transparent rubric

Compare on-prem and cloud transcription tools by accuracy, privacy, diarization, RAG/agent-readiness, integrations, price and ease of use. Weights are published — see the methodology.

Catalog (11)

Deployment
Compliance
Features
Best for

11 tools

  • NoParrot

    8.8

    on-prem diarization open source Featured

    On-prem audio memory infrastructure — diarized, MCP-native, 100% local. Wins on privacy and agent-readiness.

    Languages: 13 · ~3% WER ·

  • Meetily

    6.8

    on-prem diarization open source

    The leading open-source, self-hosted meeting note-taker — local and private, but meeting-scoped.

    Languages: 99 ·

  • AssemblyAI

    6.4

    cloud diarization

    Best-in-class cloud STT API with strong diarization and LLM features — but cloud-only and developer-oriented.

    Languages: 99 · ~4% WER ·

  • MacWhisper

    6.2

    local-app

    A polished local Whisper app for Mac — private and easy, but single-user and not a pipeline.

    Languages: 99 · ~5% WER ·

  • Buzz

    6.1

    local-app diarization open source

    A free, offline Whisper desktop app — great for private one-off transcription, not a pipeline.

    Languages: 99 · ~5% WER ·

  • Fireflies.ai

    6.1

    cloud diarization

    Feature-rich cloud meeting assistant with deep integrations — cloud-only, not for regulated audio.

    Languages: 100 ·

  • Otter.ai

    5.9

    cloud diarization

    Polished cloud meeting transcription; weak for on-prem/privacy and agent/RAG workflows.

    Languages: 3 ·

  • Rev (Rev AI)

    5.8

    cloud diarization

    Cheap, accurate cloud STT API with diarization included — but cloud-only, with no agent/RAG layer.

    Languages: 58 · ~5% WER ·

  • OpenAI Whisper (open source)

    5.6

    local-app open source

    The open-source ASR baseline. No diarization, no pipeline, no UI — a building block, not a product.

    Languages: 99 · ~5% WER ·

  • Gong

    5.4

    cloud diarization

    Powerful cloud revenue intelligence for sales teams — cloud-only, enterprise-priced, not an on-prem memory layer.

    Languages: 70 ·

  • Descript

    5.2

    cloud diarization

    A text-based audio/video editor for creators — great for production, not for on-prem or agent memory.

    Languages: 20 ·