# Best free GPTZero alternatives

6 free alternatives to GPTZero and 3 more. GPTZero is free tier + paid.

## Alternatives

- [Sapling AI Detector](https://aitools.flocci.in/tool/sapling-ai-detector) — Free — Free probability score that text is AI-generated, with sentence-level highlighting
- [Copyleaks AI Detector](https://aitools.flocci.in/tool/copyleaks-ai-detector) — Freemium — Detects AI-generated text and flags likely AI passages sentence by sentence
- [Pangram AI Detector](https://aitools.flocci.in/tool/pangram-ai-detector) — Freemium — Detects AI-generated and AI-assisted text from ChatGPT, Claude, Gemini, Grok, Llama and DeepSeek
- [Originality.ai](https://aitools.flocci.in/tool/originality-ai) — Trial — Combined AI detection + plagiarism + fact-checking in one scan
- [Winston AI](https://aitools.flocci.in/tool/winston-ai) — Trial — Image and deepfake detection alongside text AI-detection
- [Undetectable AI](https://aitools.flocci.in/tool/undetectable-ai) — Trial — Bundles an AI humanizer with unlimited AI-detection scanning on every paid plan
- [PicLumen](https://aitools.flocci.in/tool/piclumen) — Free — Genuinely free image generation
- [Bing Image Creator](https://aitools.flocci.in/tool/bing-image-creator) — Free — Free text-to-image with Microsoft MAI-Image-2.5-Flash and MAI-Image-2e
- [Qwen-Image](https://aitools.flocci.in/tool/qwen-image) — Free — Image model family with strong in-image text rendering; Qwen-Image-2512 and Qwen-Image-2.1 (Sep 2026, 7B, transparent RGBA output)

## FAQ

### What is the best free alternative to GPTZero?

Sapling AI Detector is the closest free alternative to GPTZero: same AI Content Detection & Humanizers sub-category, and it is free. Free probability score that text is AI-generated, with sentence-level highlighting

### Are there free GPTZero alternatives?

Yes — 6 of the 9 alternatives listed here are free or freemium: Sapling AI Detector, Copyleaks AI Detector, Pangram AI Detector, PicLumen, Bing Image Creator. The other 3 are trial or paid.

### Is GPTZero free?

GPTZero is free tier + paid. There is a free tier you can work in, with paid plans above it.

### How were these GPTZero alternatives chosen?

They are the other tools in AI Content Detection & Humanizers, then the rest of Content & Media Generation, ordered free tiers first and capped at 9. There is no sponsorship and no paid placement in that ordering — only the pricing tier decides.

## Related

- [GPTZero](https://aitools.flocci.in/tool/gptzero)
- [AI Content Detection & Humanizers](https://aitools.flocci.in/category/content-media-generation/ai-content-detection-humanizers)
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Source: Flocci AI Tools — https://aitools.flocci.in/alternatives/gptzero

Facts last verified: October 2026