GPTinf

GPTinf is a specialized rewriting tool that takes AI-generated content and refines it to read as if a human wrote it. Its main goal is to help text slip past popular AI detectors like GPTZero and Turnitin by adjusting vocabulary, sentence structure, and repetitive patterns while preserving the original meaning. The platform integrates built-in detection tests, so users can immediately see how the rewritten text scores against multiple AI checkers without switching between different services.

• AI Text Humanizer: Rewrites AI-generated content to remove repetitive vocabulary, grammar patterns, and predictable sentence structures, making the output appear human-written.
• Multi-Detector Testing: Runs the rewritten text through several built-in AI detectors simultaneously, giving users a single-view scorecard for multiple AI detection tools.
• Freeze Keywords Control: Lets you lock specific words or phrases—such as names, citations, or brand terms—so they remain unchanged while the surrounding text is rewritten.
• Multiple Rewrite Modes: Offers different rewriting styles and a “Built-in Ultra Humanizer” engine designed to achieve extremely low or even zero AI scores on detection tests.
• API Access: Provides a programming interface for developers who need to automate bulk rewriting, integrate the humanizer into custom applications, or manage large content pipelines.
• Word-Based Plans and Bulk Capacity: Supports high word limits and even an unlimited words tier on the top plan, catering to agencies and heavy content operations.

1. Sign up and log in: Create an account on the GPTinf website. A free trial is typically available to test the tool before committing to a paid plan.
2. Paste your AI-generated text: On the main dashboard, copy your content into the input field. You can adjust rewording modes and select the desired rewrite style.
3. Set Freeze Keywords (optional): If you need to protect specific terms, add them to the Freeze Keywords list. The tool will keep these exact words while rewriting everything else.
4. Run the humanizer: Click the rewrite button to process your text. The engine reworks the wording and sentence structure based on your chosen settings.
5. Check detection scores: After rewriting, use the built-in multi-detector testing panel to see how the output scores against several AI detectors in one place.
6. Export or copy the final text: Once satisfied with the undetectability score, copy the rewritten content or download it for use in your projects.

GPTinf offers a free trial and tiered monthly subscriptions based on word count and feature access. The plans are designed to scale from individual users to agencies and high-volume operations. Note that pricing details may change, so always check the official website for current figures.

• Lite: $9.99/month – includes 5,000 words, unlimited Freeze Keywords, unlimited AI detector checks, built-in AI detector, and access to all rewrite modes.
• Pro: $24.99/month – includes 25,000 words, unlimited re-paraphrasing, unlimited Freeze Keywords, unlimited AI detector checks, built-in AI detector, all rewrite modes, and priority email support.
• Unlimited: $59.99/month – includes unlimited words, unlimited re-paraphrasing, unlimited Freeze Keywords, unlimited AI detector checks, built-in AI detector, all rewrite modes, top-tier customer support, and early access to new features.

• Web application: The primary interface for manual copy-paste rewriting and detector testing.
• API access: Available for developers to automate API calls and integrate GPTinf into third-party apps or internal pipelines.
• Browser-based: No software installation required; accessible through any modern browser.
• Cloud-hosted: Processing happens on GPTinf’s servers, so there’s no need for local GPU or heavy compute resources.

• Test before committing big projects: Run a short sample through multiple rewrite modes and detectors to find the setting that works best for your content type.
• Use Freeze Keywords strategically: Lock down names, citations, and brand terms to maintain factual accuracy while letting GPTinf humanize the rest of the copy.
• Combine modes for longer texts: For complex or lengthy pieces, try the “Built-in Ultra Humanizer” mode to push AI scores lower, but then verify readability.
• Don’t rely solely on one detector: The built-in multi-detector check is useful, but occasionally test with external tools your institution or platform uses for the most accurate feedback.
• Keep human oversight: Always review the rewritten output for tone, nuance, and factual consistency; the tool may alter meaning slightly in pursuit of undetectability.
• Stay within usage guidelines: Use GPTinf in a way that aligns with your school, workplace, or platform’s policies on AI assistance and content authenticity.

• Freelance content writers who use AI drafts but need final copy that doesn’t trigger AI detection on client projects.
• Marketing agencies managing high-volume content production and requiring natural-sounding, undetectable text for campaigns.
• SEO specialists and publishers wanting to protect AI-assisted articles from being flagged or downgraded by search algorithms.
• Developers and SaaS builders looking to integrate an AI humanizing API into their own tools or automated workflows.
• Academic researchers or tool testers running experiments on AI detection and bypass effectiveness.
• Businesses with heavy content operations that need unlimited rewriting capacity without worrying about per-word overage costs.