Tools

Tools I used on real tasks come first. Cards marked "Not tested by this site" summarize other people’s reviews. Free tools are listed too, because sometimes the free one is good enough.

Qwen3-TTS
Voice & AudioFree, open source

Open-source text-to-speech model from Alibaba's Qwen team. It can clone a voice from a short recording.

Verdict

Good enough for my video narration once I switched to x-vector mode. Free, but slow on a CPU and it needs a Python setup.

Good
  • Free, runs on your own computer
  • Works on a laptop with no GPU
  • Fluent narration in x-vector mode
Not so good
  • About 3 to 6 seconds of computing per second of speech on a CPU
  • Needs Python and some setup
  • Sometimes misreads Chinese characters that have several readings
  • Sounded less natural than ElevenLabs in a side-by-side listen
Claude Code
AI CodingPaid (Claude plan or API)

AI coding assistant from Anthropic that works on your computer. You describe the task in plain language; it writes and runs the code.

Verdict

This site and the scripts in the voice-cloning test were built with it. You describe the job in plain language, check the result and ask for changes.

Good
  • Turns plain-language requests into working scripts
  • Runs the code and fixes its own errors
  • Useful beyond coding: documents, video pipelines
Not so good
  • Paid
  • You still have to check its work
  • Long jobs can use up the usage limit, then you wait for it to reset
ElevenLabs
Voice & AudioFree plan; Starter from $6/month

Online AI voice generator with a large voice library, including 2,500+ Chinese voices.

Verdict

Gave the most natural Chinese narration in my side-by-side test, in seconds. The free plan is enough to try it, but it has no commercial license and no voice cloning.

Good
  • Stock Mandarin voices sounded the most natural in my test
  • Two 35-second takes in under 8 seconds
  • Chinese uses few credits: about half an hour a month on the free plan
Not so good
  • Free plan: no commercial use and no voice cloning
  • Text and audio are processed in the cloud
  • One take may have misread a word
HeyGen
VideoFree plan; Creator $29/monthNot tested by this site

AI avatar video generator. You type a script and a stock avatar or your own digital twin presents it. It also translates videos with lip sync.

What reviewers say

The reviewers who make short social videos preferred it for realistic avatars and creative options. Their common warning is the credit system, so work out how many minutes your plan covers before you pay.

Good
  • 700+ stock avatars on paid plans
  • Digital twin from a short recording, with extra looks
  • Lip-sync translation into 175+ languages on paid plans
Not so good
  • Avatar IV with a video avatar uses 31 credits a minute, about 19 minutes on Creator
  • Creator cannot buy extra credits
  • 4K export only on Pro
Synthesia
VideoFree plan; Starter $14/month billed yearlyNot tested by this site

AI video platform aimed at companies: avatar presenters, an AI assistant that drafts videos from a prompt or document, dubbing, quizzes and team review.

What reviewers say

The reviewers who make training and company videos preferred it for polished presenters, team features and a cheaper entry plan. A creator reviewer found voice tuning slower than in HeyGen.

Good
  • Starter covers about 150 minutes a year, plus 10 free minutes a month
  • AI assistant drafts a whole video from a prompt, PowerPoint or PDF
  • Translation glossary keeps product names fixed
Not so good
  • Brand kits, SCORM export and unlimited minutes are Enterprise only
  • 125+ stock avatars on Starter, 240+ only on Enterprise
  • Unused monthly credits do not roll over