Overview
- Tool name: SpeedAI
- Official website: https://speedai.cgref.cn/s/dqnd985k2z
- Category: AI Detection
SpeedAI is an AI detection and text rewriting tool. SpeedAI also offers AI-score reduction and thesis paraphrasing.
Key Uses
- AIGC detection: check how likely a passage is to be flagged as AI-generated before it is submitted anywhere.
- AI-score reduction: rewrite flagged paragraphs so detection scores come down; the site calls this 降 AI 率, or lowering the AI rate.
- Thesis similarity reduction: paraphrase high-similarity sections after a plagiarism or similarity report comes back.
- AI-trace removal: reshape machine-drafted text so it reads closer to human writing, with the site naming GPTZero, Turnitin and Originality.ai as the detectors it handles.
- Research writing support: the site positions SpeedAI as a research assistant for working through papers and academic text.
- Sentence-level polishing: adjust wording and sentence structure while keeping the original meaning intact.
Who It Is For
- Students finishing a thesis who want a pre-submission check on how much of their draft reads as machine-written.
- Researchers holding a similarity report who need to paraphrase the sections that were flagged.
- Writers who drafted with an LLM and want the output to sound less formulaic before sharing it.
- Editors and proofreaders who compare an original passage against a rewritten version side by side.
- Users who prefer detection and rewriting in one place instead of paying for two separate services.
Tips for Best Results
- Work section by section: submit one paragraph or one section at a time so each rewrite can be reviewed before you move on.
- Keep a copy of the original: rewriting changes wording, so store the source text to compare against and to roll back if a passage loses meaning.
- Cross-check with more than one detector: detection tools disagree with each other, so treat any single score as a signal rather than a verdict.
- Re-verify facts and citations after rewriting: terminology, numbers and reference details can shift during paraphrase.
- Check your institution's policy first: many schools and journals publish explicit rules about AI-assisted writing, and those rules apply to rewriting too.
Limitations
- Detectors are unreliable: AI detection produces false positives, and a score is not proof of who wrote a text.
- Evading detection can breach policy: the site mentions handling text against GPTZero, Turnitin and Originality.ai, but many institutions prohibit rewriting for exactly that purpose.
- Rewriting does not fix content: paraphrasing will not correct bad data, weak arguments or broken logic, so the author still has to check the substance.
- Results vary by text: outcomes depend on the subject matter and how dense the technical terminology is, so no consistent score change should be assumed.
- Pricing is not stated on the public pages: check the official site for current free limits and plan details before relying on it.
Frequently Asked Questions
How do I start using SpeedAI?
Open the website and choose either the detection or the rewriting option, then paste in the text you want processed. Whether an account is required and how much text can be handled at once are shown on the page. Follow the current on-site instructions rather than older third-party walkthroughs.
Is SpeedAI free to use?
The public pages do not state a clear free allowance or a price list, so a free tier cannot be confirmed. Check the official site for current limits and how billing works. Claims from coupon or review sites should be treated as unofficial.
What languages and platforms does SpeedAI support?
The site presents itself in both Chinese and English, and the languages actually available for detection and rewriting are best confirmed on the page itself. No mobile app or browser extension is described in the material available. Start from the web version and see what the interface currently offers.
How is SpeedAI different from GPTZero or Turnitin?
GPTZero, Turnitin and Originality.ai sit mainly on the detection side, returning a likelihood that a text was machine-generated. SpeedAI pairs detection with rewriting for AI-score reduction and similarity reduction. The two sides rely on different signals, so their scores should not be compared directly.
Are there alternatives to SpeedAI?
For detection alone, dedicated services such as GPTZero and Originality.ai are the usual comparisons. For rewriting, general-purpose LLMs and paraphrasing tools can handle part of the job. Compare language coverage, pricing model and batch handling before deciding.
