If you run a faceless channel, the dangerous question isn’t “which AI tool is best” — it’s “which one can I actually put on a monetized video without a copyright strike.” We read the license on 132 popular tools. Almost every free tier is a trap.
So this page is two honest lists: the few tools that are genuinely free to monetize, and — for every other job a faceless channel has — the cheapest plan we verified is safe. Every price is confirmed on the company’s own page; nothing here is guessed.
Genuinely free to monetize
These sit outside our main index because their free output can legally go on a monetized video — if you respect the catch.
TTSMaker
AI voice
✓ Free is safe
Free is genuinely safe to monetize
Why it’s safe
TTSMaker's own site states free output is “free for commercial use… with no fees and no additional permission required,” there is no watermark on the audio, and its FAQ says attribution is not required. Confirmed live on ttsmaker.com.
The catch
The limit is the meter, not the license: 20,000 characters a week (a few minutes of narration), up to ~1,000 per request, behind a captcha, and generated audio auto-deletes after 30 minutes, so download it immediately. Voices are solid, not studio-grade.
Wan (Alibaba)
AI video
▲ Free, with a catch
Free to monetize if you self-host the open weights
Why it’s safe
Wan 2.1 and 2.2 ship under the standard Apache-2.0 license, and the model card states the authors claim no rights over your generated content. So self-hosted output is free to use commercially, with no watermark and no attribution.
The catch
It only applies to the OPEN weights you run yourself (Wan 2.1 / 2.2). Wan 2.5 and later are reported closed and API-only, so Apache does not cover them. And third-party “free Wan” playgrounds run their own terms: many watermark the output or block commercial use. The license you can trust is the one on the weights you downloaded, not the brand name.
Kokoro TTS
AI voice
▲ Free, with a catch
Free to monetize if you run the open weights
Why it’s safe
Kokoro's weights ship under Apache-2.0 on the official hexgrad/Kokoro-82M repository, so generated audio is free to use commercially with no watermark on the output. Confirmed on the model's Hugging Face page.
The catch
Apache-2.0 covers the weights you run yourself. Many third-party “Kokoro” websites (kokorottsai.com and similar) are unofficial and set their own terms, which may watermark or restrict output, so trust only the official hexgrad repo. And it is a model, not a polished app: you need a little technical setup (Python or a supported host) to run it.
Piper
AI voice
▲ Free, with a catch
Free to monetize if you self-host the MIT weights
Why it’s safe
Piper's code is MIT-licensed on the official rhasspy/piper repo, so the audio you generate is free to use commercially with no watermark and no attribution on the output itself. Confirmed on the repo's LICENSE.
The catch
MIT covers the engine you run yourself. It is a command-line tool, not a hosted app, so you need a little technical setup. And individual voice models can carry their own licenses (some Creative Commons), so check the model card for any voice you ship commercially.
Chatterbox (Resemble AI)
AI voice
▲ Free, with a catch
Free to monetize if you self-host the MIT model
Why it’s safe
Chatterbox ships under MIT on the official resemble-ai/chatterbox repo, so the audio you generate is free to use commercially with no attribution requirement. Confirmed on the repo's LICENSE.
The catch
Two real catches: you self-host it (a GPU and some setup), and every generation carries Resemble's PerTh watermark, an INAUDIBLE provenance marker (not a sound or a logo). It does not block monetization, but it is embedded in the file for traceability, so know it is there.
CogVideoX
AI video
▲ Free, with a catch
Free to monetize on the 2B model (Apache-2.0)
Why it’s safe
The CogVideoX-2B model is re-licensed under Apache-2.0, which grants unrestricted commercial use with no watermark on self-hosted output. Confirmed on the model repo.
The catch
The clean license is the 2B model. The stronger 5B model uses a custom CogVideoX license that allows commercial use but adds a registration step and a one-million-visits-per-month cap. And you need a capable GPU either way, this is a research repo, not a hosted app.
Stable Audio Open
AI music
▲ Free, with a catch
Free to monetize under Stability's Community License (under $1M revenue)
Why it’s safe
Stable Audio Open ships under Stability's Community License, which grants royalty-free commercial use to individuals and organizations under $1M annual revenue, and it was trained on CC0 / CC-BY / royalty-free audio. Confirmed on the model's Hugging Face license.
The catch
Three real catches: it is for under-$1M-revenue use (above that needs an enterprise license), Stability requests attribution, and clips top out around 47 seconds. You also self-host it. Read the license line on distribution of the generated audio yourself before you lean on it commercially.
The safe pick we’d make for each job
Every popular free tier fails the monetization test, so for each job this is the best-rated tool whose cheapest safe plan still stays cheap (under $20/mo) — not the rock-bottom price, the one actually worth paying. Every price is verified.
Two different 'free' paths with opposite rules. The Gemini consumer app / AI Studio UI is free and Google's main Terms of Service say 'Your content remains yours' — so you keep ownership and can monetize outputs. BUT the Gemini API free tier is a different beast: Google's API terms say the unpaid tier is 'for developers building... for professional or business purposes, not for consumer use,' Google trains on your free-tier prompts/outputs, and the pricing page lists NO free tier for the image model (image gen is paid-only on the API). Every Gemini-generated image also carries an invisible SynthID watermark. None of this blocks YouTube monetization of an image you made in the app, but the API free tier is not a clean commercial path — hence safeOnFree:false until you understand which door you walked through.
Get told when a tool’s license changes
A free tier that was safe last month can quietly add a watermark or pull its commercial license. We re-check and email you only when something that affects monetization changes.
One email when a tool's license or watermark policy changes. No deals spam.
