# Enterprise AI assistants for enterprise buyers: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "enterprise AI assistant" and as "company-wide AI chatbot for employees", 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. Page: https://www.gane.ai/index/it/it-data/enterprise-ai-assistants/2026-10/enterprise

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/it/it-data/enterprise-ai-assistants/enterprise/index.md

**Standing:** Microsoft 365 Copilot leads with 44% of first choices; verdict clear leader. 50 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Microsoft 365 Copilot](https://www.gane.ai/index/it/vendors/microsoft-365-copilot/index.md) | 44% | 11% | 54 |
| 2 | [ChatGPT](https://www.gane.ai/index/it/vendors/chatgpt/index.md) | 22% | 30% | 54 |
| 3 | [Glean](https://www.gane.ai/index/it/vendors/glean/index.md) | 10% | 14% | 21 |
| 4 | [Amazon Q](https://www.gane.ai/index/it/vendors/amazon-q/index.md) | 8% | 5% | 19 |
| 5 | [Google Gemini for Workspace](https://www.gane.ai/index/it/vendors/google-gemini-for-workspace/index.md) | 2% | 0% | 14 |
| 6 | [Google Gemini](https://www.gane.ai/index/it/vendors/google-gemini/index.md) | 2% | 32% | 28 |
| 12 | [Claude for Work](https://www.gane.ai/index/it/vendors/claude-for-work/index.md) | 2% | 39% | 31 |
| 13 | [Salesforce Agentforce](https://www.gane.ai/index/it/vendors/salesforce-agentforce/index.md) | 0% | 13% | 15 |

Rank is by share of first choices among all 127 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: ChatGPT; alternatives 1mind, BuildBetter, Claude for Enterprise, Gong
- GPT-5.4 mini: Microsoft 365 Copilot; alternatives Anthropic Claude via AWS Bedrock, Google Gemini, OpenAI Frontier / enterprise platform
- Gemini 3.5 Flash: Glean; alternatives ChatGPT, Claude for Enterprise, HubSpot Breeze AI, Microsoft 365 Copilot
- Perplexity Sonar: ChatGPT; alternatives Amazon Q, Claude for Work, Salesforce Agentforce
- Grok 4.20: Microsoft 365 Copilot; alternatives ChatGPT, Glean, Google Gemini for Workspace
- Mistral Small: Aisera, ChatGPT; alternatives Google Vertex AI
- DeepSeek V4 Flash: Glean; alternatives ChatGPT, Microsoft 365 Copilot, Moveworks, Sana
- Llama 4 Maverick: Decagon; alternatives Amazon Q, ChatGPT, HubSpot
- Qwen 3.7 Flash: ChatGPT, Microsoft 365 Copilot; alternatives Claude for Work, Google Gemini, HubSpot Breeze AI, Intercom Fin
- Kimi K2: Microsoft 365 Copilot; alternatives ChatGPT, Glean, Google Gemini for Workspace, Salesforce Agentforce
- GLM 4.7 FlashX: ChatGPT, Microsoft 365 Copilot; alternatives Claude for Work, Google Gemini
- MiniMax M2.5: no first choice; alternatives 6sense, ActiveCampaign, Cognism, Glean
- GPT-6 Luna: ChatGPT; alternatives Google Gemini, Microsoft 365 Copilot, Salesforce Agentforce
- Muse Glimmer 30B: Microsoft 365 Copilot; alternatives ChatGPT, Claude for Work, Google Gemini, ServiceNow Virtual Agent

## Sources the answers cite

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

- coworker.ai: 30 answers, 43 citations
- resources.rework.com: 27 answers, 29 citations
- glean.com: 22 answers, 36 citations
- intuitionlabs.ai: 21 answers, 32 citations
- microsoft.com: 17 answers, 33 citations
- openai.com: 15 answers, 21 citations
- slite.com: 15 answers, 15 citations
- wonderchat.io: 14 answers, 17 citations

Pages named in the most answers:

- https://resources.rework.com/tools/ai-tools/best-ai-tools-for-enterprise-2026 (25 answers)
- https://coworker.ai/blog/best-enterprise-ai-assistant-2026 (16 answers)
- https://slite.com/learn/ai-assistants-for-business (14 answers)
- https://intuitionlabs.ai/articles/enterprise-ai-assistants-comparison (13 answers)
- https://perceptis.ai/blog/best-enterprise-ai-software-in-2026-top-tools-by-category (13 answers)
- https://xpander.ai/blog/top-enterprise-personal-ai-assistant-platforms (13 answers)
- https://wonderchat.io/blog/b2b-ai-platform-comparison (11 answers)
- https://ajelix.com/ai/enterprise-chatbots (9 answers)
- https://glean.com/perspectives/9-key-questions-for-evaluating-ai-assistant-vendors-in-2026 (9 answers)
- https://monday.com/blog/crm-and-sales/enterprise-ai-tools-for-b2b-sales-workflows (9 answers)

## Warned against

- ChatGPT: 16 of 54 labels negative. "The clearest *avoid or heavily scrutinize* cases are: - Consumer accounts used for work such as personal ChatGPT, Claude, or Gemini accounts" (Perplexity Sonar, negative prompt)
- Google Gemini: 9 of 28 labels negative. "such as personal ChatGPT, Claude, or Gemini accounts, because they typically sit outside company-owned identity, policy, and retention controls" (Perplexity Sonar, negative prompt)
- Claude for Work: 12 of 31 labels negative. "such as personal ChatGPT, Claude, or Gemini accounts, because they typically sit outside company-owned identity, policy, and retention controls" (Perplexity Sonar, negative prompt)
- Microsoft 365 Copilot: 6 of 54 labels negative. "A critical vulnerability in Copilot allows zero‑click prompt injection, enabling data exfiltration" (GLM 4.7 FlashX, negative prompt)

## Record

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