# Data masking and test data management: what AI models recommend, November 2026

Gane Index, November 2026 Edition. Asked as "data masking tool" and as "test data management tool", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Added to the November 2026 Edition. Page: https://www.gane.ai/index/it/it-data/data-masking-and-test-data

**Standing:** DATPROF Privacy leads with 22% of first choices; verdict contested. 46 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [DATPROF Privacy](https://www.gane.ai/index/it/vendors/datprof-privacy/index.md) | 22% | 0% | 27 |
| 2 | [DataVeil](https://www.gane.ai/index/it/vendors/dataveil/index.md) | 13% | 10% | 10 |
| 3 | [IRI FieldShield](https://www.gane.ai/index/it/vendors/iri-fieldshield/index.md) | 9% | 6% | 18 |
| 4 | [Tonic.ai](https://www.gane.ai/index/it/vendors/tonic-ai/index.md) | 9% | 6% | 17 |
| 6 | [Delphix](https://www.gane.ai/index/it/vendors/delphix/index.md) | 4% | 30% | 37 |
| 7 | [K2View Test Data Management](https://www.gane.ai/index/it/vendors/k2view-test-data-management/index.md) | 4% | 19% | 26 |
| 8 | [Greenmask](https://www.gane.ai/index/it/vendors/greenmask/index.md) | 4% | 0% | 11 |
| 19 | [Immuta](https://www.gane.ai/index/it/vendors/immuta/index.md) | 0% | 0% | 12 |
| 20 | [IBM InfoSphere Optim](https://www.gane.ai/index/it/vendors/ibm-infosphere-optim/index.md) | 0% | 21% | 19 |
| 21 | [Oracle Data Masking and Subsetting](https://www.gane.ai/index/it/vendors/oracle-data-masking-and-subsetting/index.md) | 0% | 19% | 16 |
| 120 | [Informatica Intelligent Data Management Cloud](https://www.gane.ai/index/it/vendors/informatica-intelligent-data-management-cloud/index.md) | 0% | 40% | 25 |

Rank is by share of first choices among all 150 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: DATPROF Privacy; alternatives Delphix, Informatica Cloud Data Masking, K2View Test Data Management
- GPT-5.4 mini: Informatica Persistent/Dynamic Data Masking; alternatives BizDataX, Immuta
- Gemini 3.5 Flash: Tonic.ai; alternatives ALTR, Baffle, Immuta
- Perplexity Sonar: DATPROF Privacy; alternatives Delphix, IRI FieldShield, Informatica Intelligent Data Management Cloud, K2View Test Data Management
- Grok 4.20: Perforce Delphix; alternatives Informatica Intelligent Data Management Cloud, K2View Test Data Management, Protegrity Data Protection Platform
- Mistral Small: Informatica Dynamic Data Masking; alternatives BigID, Delphix, Immuta
- DeepSeek V4 Flash: IRI FieldShield; alternatives DATPROF Privacy
- Llama 4 Maverick: DATPROF Privacy; alternatives BizDataX, IRI FieldShield, Imperva
- Qwen 3.7 Flash: Delphix, Privacera; alternatives Microsoft Defender for Cloud, Microsoft Purview
- Kimi K2: DATPROF Privacy; alternatives Redgate Data Masker, Tonic.ai
- GLM 4.7 FlashX: DATPROF Privacy; alternatives Broadcom Test Data Manager, IRI DarkShield, OvalEdge
- MiniMax M2.5: IRI FieldShield, K2View Test Data Management; alternatives Delphix, Informatica Dynamic Data Masking
- GPT-6 Luna: Tonic.ai; alternatives DATPROF Privacy
- Muse Glimmer 30B: IRI FieldShield; alternatives DATPROF Privacy

## Sources the answers cite

71 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- k2view.com: 34 answers, 54 citations
- ovaledge.com: 28 answers, 30 citations
- sourceforge.net: 19 answers, 22 citations
- slashdot.org: 18 answers, 23 citations
- cybersecuritynews.com: 18 answers, 18 citations
- softwaretestinghelp.com: 17 answers, 17 citations
- iri.com: 15 answers, 31 citations
- airbyte.com: 15 answers, 15 citations

Pages named in the most answers:

- https://ovaledge.com/blog/data-masking-tools (28 answers)
- https://airbyte.com/top-etl-tools-for-sources/data-masking-tools-to-protect-pii-stay-compliant (15 answers)
- https://hevodata.com/learn/data-masking-tools (15 answers)
- https://fivetran.com/learn/data-masking-software (14 answers)
- https://k2view.com/blog/open-source-data-masking-tools (14 answers)
- https://softwaretestinghelp.com/data-masking-tools (14 answers)
- https://cybersecuritynews.com/best-data-masking-tools (13 answers)
- https://iri.com/support/data-education-center/the-top-15-data-masking-tools-in-2026 (12 answers)
- https://k2view.com/blog/data-masking-tools-list (10 answers)
- https://itsecuritynews.info/12-data-masking-tools-the-2026-buyers-verdict-guide (9 answers)

## Warned against

- Informatica Intelligent Data Management Cloud: 10 of 25 labels negative. "What to Avoid ... Informatica | Enterprise-grade governance; typically requires more resources" (Kimi K2, direct prompt)
- Delphix: 11 of 37 labels negative. "Enterprise Options to Avoid (For Now) ... Legacy platform; expensive; overkill for mid-market needs" (Kimi K2, paraphrase prompt)
- Fogger: 4 of 4 labels negative. "Designed for basic GDPR compliance but limited in scope; not suitable for production-scale or dynamic masking." (Grok 4.20, negative prompt)
- K2View Test Data Management: 5 of 26 labels negative. "Generally not recommended for small businesses due to high costs and complexity." (Mistral Small, negative prompt)

## Movement since October 2026

Floor: 11 points of share, measured on the calibration repeat.
Same leader: DATPROF Privacy at 22%.

- DataVeil: 0% to 13%, +13. Cleared the floor by 2 points · rank 37 → 2 of 150.
- Oracle Data Masking and Subsetting: 9% to 0%, −9. Inside the floor by 2 points · rank 4 → 21 of 150.
- DATPROF Privacy: 17% to 22%, +5. Inside the floor by 6 points · rank 1 of 150, unchanged.
- GenRocket: 4% to 0%, −4. Inside the floor by 7 points · rank 10 → 22 of 150.
- Greenmask: 7% to 4%, −3. Inside the floor by 8 points · rank 6 → 8 of 150.
- Tonic.ai: 11% to 9%, −2. Inside the floor by 9 points · rank 2 → 4 of 150.
- IRI FieldShield: 9% to 9%, ±0. Inside the floor by 11 points · rank 3 of 150, unchanged.
- Delphix: 4% to 4%, ±0. Inside the floor by 11 points · rank 8 → 6 of 150.
- K2View Test Data Management: 4% to 4%, ±0. Inside the floor by 11 points · rank 9 → 7 of 150.
- Immuta: 0% to 0%, ±0. Inside the floor by 11 points · rank 21 → 19 of 150.
- IBM InfoSphere Optim: 0% to 0%, ±0. Inside the floor by 11 points · rank 20 of 150, unchanged.
- Informatica Intelligent Data Management Cloud: 0% to 0%, ±0. Inside the floor by 11 points · rank 31 → 120 of 150.

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.