# Communications archiving and compliance for enterprise buyers: what AI models recommend, October 2026

IT AI Recommendation Index, October 2026 Edition. Asked as "communications archiving platform" and as "email and chat archiving for compliance", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Added to the October 2026 Edition on October 4, 2026; its answers are read by the distilled judge (ai-indexes-judge-qwen3-14b-run3), not the claude-opus-5 judge of the earlier categories. Page: https://it-ai-index.com/security/communications-archiving-and-compliance/enterprise/

**Standing:** Proofpoint Enterprise Archive leads with 27% of first choices; verdict contested. 56 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Proofpoint Enterprise Archive | 27% | 7% | 58 |
| 2 | Smarsh Enterprise Archive | 23% | 16% | 58 |
| 3 | Global Relay | 14% | 13% | 45 |
| 4 | Mimecast Cloud Archive | 9% | 11% | 38 |
| 5 | Jatheon | 9% | 4% | 27 |
| 6 | Microsoft Purview | 5% | 31% | 29 |
| 7 | Archive360 | 2% | 16% | 19 |
| 8 | Theta Lake | 0% | 0% | 12 |
| 9 | Veritas Enterprise Vault | 0% | 43% | 14 |
| 10 | Google Vault | 0% | 64% | 11 |

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

- Claude Haiku 4.5: Global Relay; alternatives Jatheon, Mimecast Archiving, Proofpoint Enterprise Archive, Smarsh Enterprise Archive
- GPT-5.4 mini: Smarsh Enterprise Archive; alternatives Microsoft Purview, Proofpoint Enterprise Archive
- Gemini 3.5 Flash: Global Relay, Smarsh Enterprise Archive; alternatives Microsoft Purview, Mimecast Cloud Archive, Theta Lake
- Perplexity Sonar: Proofpoint Enterprise Archive; alternatives OpenText Core Business Communication Archive, Smarsh Enterprise Archive
- Grok 4.1 Fast: Proofpoint Enterprise Archive, Smarsh Enterprise Archive; alternatives Arctera, Global Relay, Jatheon
- Mistral Small: Smarsh Enterprise Archive; alternatives LeapXpert, Proofpoint Enterprise Archive
- DeepSeek V4 Flash: Mimecast Cloud Archive, Proofpoint Enterprise Archive; alternatives Archive360, Arctera, Global Relay, Smarsh Connected Archive
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Global Relay, Smarsh Enterprise Archive; alternatives Collarity, Microsoft Purview, Mimecast Cloud Archive, Proofpoint Enterprise Archive
- Kimi K2: Jatheon, Proofpoint Enterprise Archive; alternatives Global Relay, Microsoft Purview, Smarsh Enterprise Archive
- GLM 4.7 FlashX: Archive360; alternatives Smarsh Enterprise Archive, Veritas Enterprise Vault
- MiniMax M2.5: no first choice
- GPT-6 Luna: Proofpoint Enterprise Archive; alternatives Global Relay, Microsoft Purview, Smarsh Enterprise Archive
- Muse Glimmer 30B: Global Relay, Smarsh Enterprise Archive; alternatives Microsoft Purview, Proofpoint Enterprise Archive

## Sources the answers cite

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

- jatheon.com: 60 answers, 97 citations
- gartner.com: 45 answers, 68 citations
- smarsh.com: 42 answers, 59 citations
- archondatastore.com: 41 answers, 54 citations
- proofpoint.com: 40 answers, 54 citations
- g2.com: 34 answers, 45 citations
- f6s.com: 26 answers, 35 citations
- worldmetrics.org: 24 answers, 33 citations

Pages named in the most answers:

- https://jatheon.com/blog/best-data-archiving-software (55 answers)
- https://gartner.com/reviews/market/digital-communications-governance-and-archiving-solutions (35 answers)
- https://proofpoint.com/us/products/digital-communications-governance/archive (33 answers)
- https://archondatastore.com/blog/email-archiving-solutions (27 answers)
- https://wordwatch.io/blog/best-communications-archiving-platforms-2026 (20 answers)
- https://f6s.com/software/category/communication-archiving (17 answers)
- https://expertinsights.com/compliance/the-top-email-archiving-solutions-for-businesses (15 answers)
- https://worldmetrics.org/best/enterprise-archiving-software (14 answers)
- https://aiemaily.com/blog/best-email-archiving-software-for-compliance (13 answers)
- https://cotocus.com/blog/top-10-archiving-tools-features-pros-cons-comparison (13 answers)

## Warned against

- Smarsh Enterprise Archive: 9 of 58 labels negative. "Smarsh: Users have reported issues with complex and vague pricing, unavailability of functions, slow search, and lack of robust technical support and documentation." (Llama 4 Maverick, negative prompt)
- Veritas Enterprise Vault: 6 of 14 labels negative. "the platforms to be most cautious about are:

1. Veritas/Arctera Enterprise Vault — dated architecture, complex UI, scalability struggles, and waning support quality." (DeepSeek V4 Flash, negative prompt)
- Google Vault: 7 of 11 labels negative. "Why avoid? Severe compliance gaps—e.g., Vault misses off-channel texts" (Grok 4.1 Fast, negative prompt)
- Microsoft Purview: 9 of 29 labels negative. "Avoid native tools like Microsoft Purview alone—they lack full immutability/supervision for strict regs." (Grok 4.1 Fast, paraphrase prompt)

## Record

- Method: https://it-ai-index.com/methodology/
- Raw judge labels and full responses: https://it-ai-index.com/data/
- License: CC BY 4.0. Cite as IT AI Recommendation Index, October 2026 Edition, it-ai-index.com.