# Google Voice vs 8x8: which do AI models recommend for business phones, October 2026

IT AI Recommendation Index, October 2026 Edition, Business phone systems. Zero of fourteen models named Google Voice first on the direct prompt; one named 8x8. Page: https://it-ai-index.com/operations/business-phone-systems/google-voice-vs-8x8/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Google Voice | 15% | #2 of 12 | 12% | 17 | 11 of 14 |
| 8x8 | 3% | #6 of 12 | 8% | 37 | 13 of 14 |

## The direct prompt, model by model

- Kimi K2: 8x8 first (first choices: 8x8, RingCentral RingEX) (alternatives: Dialpad, GoTo Connect, Nextiva)
- Claude Haiku 4.5: neither first, one named (first choices: RingCentral) (alternatives: 8x8, Dialpad, Nextiva)
- Perplexity Sonar: neither first, one named (first choices: RingCentral) (alternatives: 8x8, Dialpad, JustCall, Nextiva)
- Grok 4.1 Fast: neither first, one named (first choices: Nextiva) (alternatives: 8x8, Ooma Office, RingCentral, Zoom Phone)
- Mistral Small: neither first, one named (first choices: RingCentral) (alternatives: 8x8, Intermedia, Nextiva, Zoom Phone)
- DeepSeek V4 Flash: neither first, one named (first choices: RingCentral) (alternatives: 8x8, Aircall, Dialpad, Nextiva)
- Muse Glimmer 30B: neither first, one named (first choices: Nextiva, RingCentral) (alternatives: 8x8, Dialpad, Zoom Phone)
- GPT-5.4 mini: neither named (first choices: RingCentral, Zoom Phone) (alternatives: Dialpad, Nextiva, Webex Calling)
- Gemini 3.5 Flash: neither named (first choices: Dialpad, RingCentral) (alternatives: Aircall, Microsoft Teams Phone, Nextiva)
- Llama 4 Maverick: neither named (first choices: Nextiva) (alternatives: JustCall, Vonage, Zoom Phone)
- Qwen 3.7 Flash: neither named (first choices: RingCentral) (alternatives: Microsoft Teams Phone, Nextiva, Zoom Phone)
- GLM 4.7 FlashX: neither named (first choices: Nextiva, RingCentral RingEX) (alternatives: Dialpad Connect, GoTo Connect, Zoom Phone)
- MiniMax M2.5: neither named (first choices: Nextiva, RingCentral RingEX) (alternatives: Intermedia Unite, Zoom Phone)
- GPT-6 Luna: neither named (first choices: RingCentral RingEX) (alternatives: Dialpad, Teams Phone, Zoom Phone)

## What the models said about Google Voice

- "Caution: Very poor tech support scores ... Better for: Personal use only; lacks business-grade features and support" (Kimi K2, negative prompt, hard negative)
- "Google Voice has no integrations outside Google Workspace, no desktop app, and no auto-replies" (Claude Haiku 4.5, negative prompt, soft negative)
- "For maximum budget savings: Choose Google Voice if you're already using Google Workspace and have 10 or fewer users." (Kimi K2, budget prompt, first choice)
- "The Best Overall Value: Google Voice Standard ... widely considered the best bang-for-buck software in the industry." (Qwen 3.7 Flash, budget prompt, first choice)
- "If you need basic features: Go with Google Voice ($10/month) - it's the most affordable and reliable" (MiniMax M2.5, budget prompt, first choice)

## What the models said about 8x8

- "While 8x8 has strengths, it has significant red flags... budget-conscious growing teams may find pricing unpredictable." (Qwen 3.7 Flash, negative prompt, soft negative)
- "notorious for aggressive and highly restrictive sales contracts" (Gemini 3.5 Flash, negative prompt, soft negative)
- "Support is consistently rated 1–2 stars on third-party sites." (DeepSeek V4 Flash, negative prompt, soft negative)
- "RingCentral MVP / 8x8 X Series: Full UCaaS, strong PBX features, good mid-market fit." (Kimi K2, scale prompt, first choice)
- "I'd suggest RingCentral RingEX or 8x8 as the top choices" (Kimi K2, direct prompt, first choice)
- "If you're running both sales and support operations, 8x8 is worth a serious look given its native contact center capabilities." (DeepSeek V4 Flash, 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.