# SyncSignature vs Newoldstamp: which do AI models recommend for email signatures, October 2026

GTM AI Recommendation Index, October 2026 Edition, Email signature management. One of fourteen models named SyncSignature first on the direct prompt; zero named Newoldstamp. Page: https://gtm-ai-index.com/marketing/email-signature-management/syncsignature-vs-newoldstamp/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| SyncSignature | 4% | #5 of 9 | 0% | 17 | 11 of 14 |
| Newoldstamp | 2% | #6 of 9 | 5% | 22 | 12 of 14 |

## The direct prompt, model by model

- GLM 4.7 FlashX: syncsignature first (first choices: SyncSignature) (alternatives: CodeTwo Email Signatures 365, Exclaimer, Letsignit)
- Claude Haiku 4.5: neither first, one named (first choices: Exclaimer) (alternatives: CodeTwo Email Signatures 365, Newoldstamp, Rocketseed)
- Gemini 3.5 Flash: neither first, one named (first choices: CodeTwo Email Signatures 365, Exclaimer) (alternatives: Newoldstamp, Opensense, Signitic)
- GPT-5.4 mini: neither named (first choices: Exclaimer) (alternatives: CodeTwo Email Signatures 365)
- Perplexity Sonar: neither named (first choices: Exclaimer) (alternatives: Letsignit, Opensense, Rocketseed, WiseStamp)
- Grok 4.1 Fast: neither named (first choices: Exclaimer) (alternatives: CodeTwo Email Signatures 365, WiseStamp)
- Mistral Small: neither named (first choices: Exclaimer, WiseStamp) (alternatives: CodeTwo Email Signatures)
- DeepSeek V4 Flash: neither named (first choices: Exclaimer) (alternatives: CodeTwo Email Signatures 365, WiseStamp)
- Llama 4 Maverick: neither named (first choices: Exclaimer, WiseStamp) (alternatives: Opensense)
- Qwen 3.7 Flash: neither named (first choices: WiseStamp) (alternatives: Exclaimer, Opensense)
- Kimi K2: neither named (first choices: WiseStamp) (alternatives: Exclaimer)
- MiniMax M2.5: neither named (first choices: WiseStamp) (alternatives: Exclaimer, Opensense)
- GPT-6 Luna: neither named (first choices: CodeTwo Email Signatures 365) (alternatives: Exclaimer)
- Muse Glimmer 30B: neither named (first choices: Exclaimer, WiseStamp) (alternatives: Opensense)

## What the models said about SyncSignature

- "For most mid-market B2B companies, SyncSignature offers the best value proposition with competitive pricing, robust features, and flexible deployment options." (GLM 4.7 FlashX, direct prompt, first choice)
- "SyncSignature | Balance of features and cost | Competitive mid-market" (Kimi K2, scale prompt, first choice)
- "worth a look if you want directory sync and multi-tenant management in a simpler centralized model" (GPT-5.4 mini, paraphrase prompt, alternative)

## What the models said about Newoldstamp

- "Free tiers (e.g., some in Newoldstamp or MySignature) often limit features, leading to unexpected upgrades." (Grok 4.1 Fast, negative prompt, soft negative)
- "Newoldstamp is the best overall email signature management platform for teams who want to combine administrative simplicity with marketing campaigns" (Claude Haiku 4.5, paraphrase prompt, first choice)
- "Newoldstamp is a cloud-based signature manager built specifically around signature marketing and departmental customization." (Gemini 3.5 Flash, paraphrase prompt, alternative)
- "Newoldstamp is worth considering if marketing team control and integrations with systems like ... matter most" (Perplexity Sonar, paraphrase prompt, alternative)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.