Open-source alternatives to paid AI tools

SkipTheSub / Otter.ai / Rev

Open-source alternatives to Otter.ai / Rev

Monthly price for Otter.ai / Rev: Otter $24/user/mo (source) . Below: 3 open-source alternatives.

openai/whisper

What it can do

Robust Speech Recognition via Large-Scale Weak Supervision (GitHub project description) source

What it can't do

TBD

Minimum hardware

RAM
TBD
VRAM
1 GB
Runs on
  • gpu
  • cpu
Note
~1GB VRAM for tiny/base models
source

Setup difficulty

2/5 — Single documented command (docker run / pip / npm / brew install) source

Freshness

not fetched yet

Running cost (per month, roughly)

VPS: TBD — minimum RAM not verified

Local electricity: $ —/mo watts / 1000 × hours/day × 30 × 0.1831 $/kWh source

Open on GitHub

SYSTRAN/faster-whisper

What it can do

Faster Whisper transcription with CTranslate2. (GitHub project description) source

What it can't do

TBD

Minimum hardware

TBD

Setup difficulty

2/5 — Single documented command (docker run / pip / npm / brew install) source

Freshness

Stars
25,899
Last push
2026-10-16
Latest release
v1.2.1

Running cost (per month, roughly)

VPS: TBD — minimum RAM not verified

Local electricity: $ —/mo watts / 1000 × hours/day × 30 × 0.1831 $/kWh source

Fetched 2026-10-16 from the GitHub API.

Open on GitHub

ggml-org/whisper.cpp

What it can do

Port of OpenAI's Whisper model in C/C++. (GitHub project description) source

What it can't do

TBD

Minimum hardware

RAM
TBD
VRAM
TBD
Runs on
  • cpu
  • mac
Note
CPU-only inference supported
source

Setup difficulty

TBD

Freshness

not fetched yet

Running cost (per month, roughly)

VPS: TBD — minimum RAM not verified

Local electricity: $ —/mo watts / 1000 × hours/day × 30 × 0.1831 $/kWh source

Open on GitHub

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