# Knowledge base and self-service: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "knowledge base software" and as "customer self-service help center tool", six framings each, to fourteen models with search on, on behalf of a mid-market B2B company. Page: https://www.gane.ai/index/gtm/customer/knowledge-base-and-self-service/2026-10

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since.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/gtm/customer/knowledge-base-and-self-service/index.md

**Standing:** Notion leads with 21% of first choices; verdict contested. 58 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Notion](https://www.gane.ai/index/gtm/vendors/notion/index.md) | 21% | 30% | 50 |
| 2 | [Document360](https://www.gane.ai/index/gtm/vendors/document360/index.md) | 17% | 2% | 42 |
| 3 | [Freshdesk](https://www.gane.ai/index/gtm/vendors/freshdesk/index.md) | 14% | 4% | 23 |
| 4 | [Zendesk Guide](https://www.gane.ai/index/gtm/vendors/zendesk-guide/index.md) | 7% | 10% | 40 |
| 5 | [Confluence](https://www.gane.ai/index/gtm/vendors/confluence/index.md) | 5% | 15% | 46 |
| 7 | [Slite](https://www.gane.ai/index/gtm/vendors/slite/index.md) | 3% | 8% | 26 |
| 8 | [Helpjuice](https://www.gane.ai/index/gtm/vendors/helpjuice/index.md) | 3% | 5% | 19 |
| 9 | [HubSpot Service Hub](https://www.gane.ai/index/gtm/vendors/hubspot-service-hub/index.md) | 3% | 0% | 10 |
| 12 | [Guru](https://www.gane.ai/index/gtm/vendors/guru/index.md) | 2% | 7% | 28 |
| 13 | [Help Scout Docs](https://www.gane.ai/index/gtm/vendors/help-scout-docs/index.md) | 2% | 6% | 18 |
| 15 | [ClickUp](https://www.gane.ai/index/gtm/vendors/clickup/index.md) | 2% | 8% | 12 |
| 20 | [Intercom Articles](https://www.gane.ai/index/gtm/vendors/intercom-articles/index.md) | 0% | 0% | 13 |

Rank is by share of first choices among all 88 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: Document360, Helpjuice; alternatives BlueTweak, Helply, KnowledgeOwl, Nuclino
- GPT-5.4 mini: Zendesk Guide; alternatives Confluence, Document360, Guru
- Gemini 3.5 Flash: Document360, Guru; alternatives Confluence, Glean, HubSpot Service Hub, Notion
- Perplexity Sonar: Pylon; alternatives Confluence, Document360, Helpjuice
- Grok 4.20: Confluence, Document360; alternatives Notion
- Mistral Small: Document360; alternatives Freshdesk, Notion, Pylon
- DeepSeek V4 Flash: Helpjuice; alternatives Confluence, Document360, Freshdesk, Slite
- Llama 4 Maverick: Pylon; alternatives Document360, Freshdesk, Spekit, Stonly
- Qwen 3.7 Flash: Document360; alternatives Confluence, Freshdesk Knowledge Base, Notion, Zendesk Guide
- Kimi K2: Confluence, Freshdesk; alternatives Notion, Slite
- GLM 4.7 FlashX: Slite; alternatives Confluence, Document360, Guru, Help Scout Docs
- MiniMax M2.5: Tettra; alternatives Confluence, Document360
- GPT-6 Luna: Document360; alternatives Confluence, Guru, Zendesk Guide
- Muse Glimmer 30B: Document360, Freshdesk, Pylon; alternatives Confluence, LiveAgent

## Sources the answers cite

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

- learn.g2.com: 38 answers, 43 citations
- slite.com: 34 answers, 48 citations
- g2.com: 20 answers, 32 citations
- blog.hubspot.com: 20 answers, 25 citations
- plain.com: 17 answers, 20 citations
- helpjuice.com: 17 answers, 18 citations
- zendesk.com: 16 answers, 23 citations
- document360.com: 15 answers, 18 citations

Pages named in the most answers:

- https://slite.com/learn/knowledge-base-softwares (32 answers)
- https://learn.g2.com/best-knowledge-base-software (30 answers)
- https://helpjuice.com/blog/knowledge-base-software-buying-guide (16 answers)
- https://mangoapps.com/articles/best-knowledge-management-software (15 answers)
- https://blog.hubspot.com/service/knowledge-managment-software (14 answers)
- https://bolddesk.com/blogs/best-knowledge-base-software (14 answers)
- https://peoplemanagingpeople.com/tools/best-knowledge-base-software (13 answers)
- https://helpdocs.io/best-knowledge-base-software (10 answers)
- https://knowledgeowl.com/blog/posts/find-best-knowledge-base-software (10 answers)
- https://plain.com/blog/best-knowledge-base-software-12-top-tools-for-2025 (10 answers)

## Warned against

- Notion: 15 of 50 labels negative. "it falls short as a dedicated knowledge base due to its weak search, lack of version control, and missing customer-focused features" (Llama 4 Maverick, negative prompt)
- Confluence: 7 of 46 labels negative. "Search issues: Surfaces archived pages above current ones ... Cost creep: Atlassian pricing changes have frustrated many users" (Kimi K2, negative prompt)
- Zendesk Guide: 4 of 40 labels negative. "typical enterprise tools (like Zendesk or Salesforce) are often too expensive" (Gemini 3.5 Flash, budget prompt)
- SharePoint: 3 of 5 labels negative. "notoriously complex to set up. It often requires a dedicated SharePoint administrator" (Gemini 3.5 Flash, negative prompt)

## Movement since September 2026

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

- Notion: 18% to 22%, +4. Inside the floor by 7 points · rank 1 of 85, unchanged.
- HubSpot Service Hub: 0% to 4%, +4. Inside the floor by 7 points · rank 22 → 7 of 85.
- Zendesk Guide: 6% to 8%, +2. Inside the floor by 9 points · rank 4 of 85, unchanged.
- Confluence: 6% to 4%, −2. Inside the floor by 9 points · rank 5 of 85, unchanged.
- Slite: 2% to 4%, +2. Inside the floor by 9 points · rank 13 → 6 of 85.
- BookStack: 6% to 4%, −2. Inside the floor by 9 points · rank 6 → 9 of 85.
- Guru: 4% to 2%, −2. Inside the floor by 9 points · rank 7 → 11 of 85.
- Help Scout Docs: 0% to 2%, +2. Inside the floor by 9 points · rank 19 → 12 of 85.
- Nuclino: 0% to 2%, +2. Inside the floor by 9 points · rank 21 → 13 of 85.
- Slab: 4% to 2%, −2. Inside the floor by 9 points · rank 9 → 15 of 85.
- Tettra: 0% to 2%, +2. Inside the floor by 9 points · rank 28 → 18 of 85.
- Intercom Articles: 2% to 0%, −2. Inside the floor by 9 points · rank 14 → 20 of 85.

## Record

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