TURNER INDEX36% -1%
HUMAN WIN64% +1%
GAMES TODAY27,209
MOBILE32% +0%
TABLET37% -6%
DESKTOP39% -3%
TOP COUNTRY UNITED KINGDOM30%
MOST CHALLENGED GERMANY54%
TURNER INDEX36% -1%
HUMAN WIN64% +1%
GAMES TODAY27,209
MOBILE32% +0%
TABLET37% -6%
DESKTOP39% -3%
TOP COUNTRY UNITED KINGDOM30%
MOST CHALLENGED GERMANY54%
TURNER INDEX36% -1%
HUMAN WIN64% +1%
GAMES TODAY27,209
MOBILE32% +0%
TABLET37% -6%
DESKTOP39% -3%
TOP COUNTRY UNITED KINGDOM30%
MOST CHALLENGED GERMANY54%
TURNER INDEX36% -1%
HUMAN WIN64% +1%
GAMES TODAY27,209
MOBILE32% +0%
TABLET37% -6%
DESKTOP39% -3%
TOP COUNTRY UNITED KINGDOM30%
MOST CHALLENGED GERMANY54%
Weekly Index Report· 7-day data updated

The Turner Index

How well can humans still
detect AI?

A live, weekly-tracked measure of how often people fail to tell AI apart from other humans in real-time conversation.

36%
▼ -3%vs previous 7 days
of users failed to detect AI
Based on 202,189 completed conversations (last 7 days)
7-day trend
Overview

Humans are struggling to identify AI

The Turner Index reveals a growing gap between human perception and AI behavior. As conversational AI improves, distinguishing between human and machine is becoming increasingly difficult, especially in natural, real-time conversations.

A significant and growing share of users consistently misidentify AI as human in live interactions.

Humans are increasingly unable to tell when they're talking to AI — the miss rate has eased 3 points this week.
7-day data last updated · refreshes daily
Live Data

Live Turner Index

Updated in real time based on active games and recent interactions.

Turner Index (AI win %)
36%
▼ -3% vs last 7d
% of games where users incorrectly identified AI as human
Human win %
64%
▲ +3% vs last 7d
% of games where users correctly identified AI
Total games
27,209
in the last 24 hours
Games vs AI
59%
↔ flat vs last 7d
% of games where the partner was AI
Last updated · refreshes automatically
Breakdown — Device

How performance differs by device

The device you use measurably impacts your ability to detect AI.

Performance varies depending on how users interact — across mobile, desktop, and tablet.

📱 Mobile
33%
Failed to detect AI
▼ -4% vs last 7 days
n = 116,339 sessions (last 7 days)
🖥️ Desktop
40%
Failed to detect AI
▼ -1% vs last 7 days
n = 80,520 sessions (last 7 days)
📲 Tablet
41%
Failed to detect AI
▲ +2% vs last 7 days
n = 5,330 sessions (last 7 days)
Tablet users are more likely to misidentify AI compared to Mobile users — a 8-point gap this week.
Breakdown — Country

Which countries detect AI best

United Kingdom leads detection at 66%, while Germany lags at 60% — a 6-point gap.
01
United Kingdom
66%
02
Canada
64%
03
United States
63%
04
India
61%
05
Germany
60%
Best at detecting AI
United Kingdom66%
Lowest detection accuracy
Germany60%

Based on top 5 countries by completed games (last 7 days) · countries below minimum sample size excluded

Failure Mode

Where humans fail

The biggest mistake users make is assuming AI is human — the miss rate sits at 36%, down 3 points week over week.

The most common failure occurs when users assume they're speaking to a human, when in fact they're interacting with AI.

AI mistaken as human
36%
AI correctly identified
64%
Users are more likely to correctly identify AI than mistake it for human — but the miss rate still sits at 36%, down 3 points week over week.
Methodology

How the Turner Index works

The Turner Index measures the percentage of games where users incorrectly identify an AI as human.

01
Each session is a real conversation between a user and a partner.
02
The partner can be either human or AI.
03
Users make a final guess at the end of the session.
04
The result is recorded as correct or incorrect.
Based on aggregated results from thousands of completed sessions across web and mobile. Segments below the minimum sample-size threshold are excluded from country and device breakdowns.
AI Models

Powered by Google Gemini and OpenAI GPT models.

We continuously update the models used as AI evolves.

Research & Collaboration

Collaborate with us

The Turner Index is a real-world dataset of human-AI interaction at scale — and we're open to partnering with researchers studying AI behavior, cognition, and digital trust.

Interested in data access or a joint research initiative? Let's talk.

Ready?

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v2026.08.31
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