# AI Breakout: October 2026

Published October 8, 2026 by Torii Research (Torii). Updated October 8, 2026. Canonical URL: https://www.toriihq.com/research/reports/ai-breakout-october-2026

Claude AI reaches 98% adoption in October, and Grok breaks into the top 10.

## What the data says

Claude AI (98% adoption) and ChatGPT (93% adoption) lead, with OpenAI (74% adoption) holding third.

Grok climbs 9 places to #8, the top climber for a second month.

Four apps are new to the ranking, led by Grok Bot at #15. Perplexity AI is down 4 places to #27, the largest drop.

This edition covers September 2026 usage data.

## At a glance

- Top 3: Claude AI (#1), ChatGPT (#2), OpenAI (#3).
- Biggest climbers: Grok, up 9 to #8; OpenAI Codex, up 3 to #19; ClickUp, up 3 to #23.
- Biggest drops: Perplexity AI, down 4 to #27; Google AI Studio, down 3 to #30; Claude Developer, down 2 to #11.

## What kinds of apps

AI-native apps: 87% (26 of the 30 apps). Share of this edition's apps by theme (one theme per app; definitions at https://www.toriihq.com/research/themes):

- AI assistants: 27% (8 apps: Claude AI, ChatGPT, OpenAI, Google Gemini, Grok, Microsoft Copilot, Anthropic, Perplexity AI)
- AI coding and building: 27% (8 apps: Cursor AI, Claude Developer, Google Antigravity, OpenAI Codex, Gemini Code Assist, ollama, OpenCode, Google AI Studio)
- AI agents: 13% (4 apps: Grok Bot, n8n, Instinct.com, New Gen AI)
- AI notes and voice: 10% (3 apps: Granola, Read AI, Fireflies.ai)
- AI content and media: 10% (3 apps: Grammarly, ElevenLabs, Higgsfield)
- Sales, marketing, and CX: 7% (2 apps: Gong, Apollo)
- Work suites and collaboration: 3% (1 app: ClickUp)
- Ops, HR, and finance: 3% (1 app: Zapier)

## Rankings

Ranked by usage among AI apps. Rank change compares with the previous published edition.

| Rank | App | Category | Theme | AI-native | Rank change | Shadow IT index |
|---|---|---|---|---|---|---|
| 1 | Claude AI | Productivity | AI assistants | Yes | Same | 41 |
| 2 | ChatGPT | Productivity | AI assistants | Yes | Same | 39 |
| 3 | OpenAI | Productivity | AI assistants | Yes | Same | 44 |
| 4 | Google Gemini | Productivity | AI assistants | Yes | Same | 61 |
| 5 | Cursor AI | Developer Tools | AI coding and building | Yes | Same | 43 |
| 6 | Grammarly | Productivity | AI content and media | Yes | +1 | 49 |
| 7 | Gong | Sales & Marketing | Sales, marketing, and CX | No | -1 | 48 |
| 8 | Grok | Productivity | AI assistants | Yes | +9 | 75 |
| 9 | Microsoft Copilot | Productivity | AI assistants | Yes | -1 | 65 |
| 10 | Granola | Productivity | AI notes and voice | Yes | Same | 64 |
| 11 | Claude Developer | Developer Tools | AI coding and building | Yes | -2 | 56 |
| 12 | Zapier | IT & Security | Ops, HR, and finance | No | -1 | 45 |
| 13 | Google Antigravity | Developer Tools | AI coding and building | Yes | +1 | 71 |
| 14 | Read AI | Operations | AI notes and voice | Yes | -2 | 67 |
| 15 | Grok Bot | Productivity | AI agents | Yes | New | 87 |
| 16 | Anthropic | IT & Security | AI assistants | Yes | Same | 48 |
| 17 | ElevenLabs | Operations | AI content and media | Yes | -2 | 63 |
| 18 | Apollo | Sales & Marketing | Sales, marketing, and CX | No | +1 | 62 |
| 19 | OpenAI Codex | Developer Tools | AI coding and building | Yes | +3 | 74 |
| 20 | Gemini Code Assist | Developer Tools | AI coding and building | Yes | -2 | 67 |
| 21 | ollama | Developer Tools | AI coding and building | Yes | -1 | 74 |
| 22 | n8n | Operations | AI agents | Yes | +2 | 60 |
| 23 | ClickUp | Project Management | Work suites and collaboration | No | +3 | 62 |
| 24 | Fireflies.ai | Sales & Marketing | AI notes and voice | Yes | +1 | 65 |
| 25 | Instinct.com | Productivity | AI agents | Yes | New | 82 |
| 26 | OpenCode | Developer Tools | AI coding and building | Yes | +2 | 84 |
| 27 | Perplexity AI | Analytics & BI | AI assistants | Yes | -4 | 62 |
| 28 | Higgsfield | Design | AI content and media | Yes | New | 76 |
| 29 | New Gen AI | Sales & Marketing | AI agents | Yes | New | 82 |
| 30 | Google AI Studio | Developer Tools | AI coding and building | Yes | -3 | 68 |

## Method

Anonymized, aggregated usage data from companies across industries and sizes, reported as percentages, ranks, and scores. No single organization is identifiable. Methodology: https://www.toriihq.com/research/methodology

## Changelog



## How to cite

Torii Research. (2026, October 8). AI Breakout: October 2026 [Data set]. Torii. https://www.toriihq.com/research/reports/ai-breakout-october-2026

Data: https://www.toriihq.com/research/data/ai-breakout-october-2026.csv and https://www.toriihq.com/research/data/ai-breakout-october-2026.json