GTM AI Index
Index Vendors › Signal · September 2026 Edition
2 categories · Named, not ranked

Signal

23Judge labels
0First choices
15Negative labels
8 of 12Models named it
2Categories
September 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-09-16.3, every buyer segment counted.
Standing
9 labels, too few to rank
A product needs 10 labels in a category before a share or quadrant is stated. Signal was named 9 times in In-app messaging and 1 other category, where Intercom led with 20%. The labels and the evidence are below, counted exactly.
By buyer segmentRead the same way at every buyer size.
In in-app messaging · each standing computed within its segment · bars are 0 to 100 · the accent bar is the product's own best reading

Standing by category

Every category where a model named Signal for a mid-market B2B company. Share is first choices across the direct, paraphrase, budget and scale prompts; rank is within every product named in that category.
CategoryFunctionShareRankNegative rateLabelsQuadrant
In-app messaging and customer communicationsCustomer0%22 of 1130%6under 10 labels · led by Intercom at 20%
Tag managementGTM data and infrastructure0%56 of 5967%3under 10 labels · led by Google Tag Manager at 77%

Movement

This is the first edition on this tier, so no move can be computed for Signal yet. The next is due October 1, 2026. From the next edition this section shows, per buyer segment, whether its share moved by more than the measured noise floor.

By model

How each model treated Signal across every prompt where it was named for a mid-market B2B company. Twelve models, six prompts per category.
ModelFirst choiceAlternativeMentionNegativeLabels
Claude Haiku 4.510001
GPT-5.4 mini00000
Gemini 3.5 Flash00011
Perplexity Sonar00000
Grok 4.1 Fast10001
Mistral Small10102
DeepSeek V4 Flash01012
Llama 4 Maverick00000
Qwen 3.7 Flash00000
Kimi K200000
GLM 4.7 FlashX10001
MiniMax M2.501001

By framing

Which of the six questions produced the naming. By model says how often; this says asked what. The first-choice count on the right carries the marks of the models that produced it.
FramingLabels by classFirst choices
Direct0 labelsNone
Paraphrase0 labelsNone
Comparative1 labelNone
Budget-constrained0 labelsNone
Scale-constrained1 labelNone
Negative21 labels4not counted in share
First choiceAlternativeMentionNegative23 labels in all, every segment counted; 0 of the 4 first choices count toward share, since the comparative and negative framings do not. The bar is one segment per label class, to scale within the framing.

What the models said for it

Verbatim evidence the judge attached to positive labels.

“Signal remains the best secure messaging app in 2026 for most people because default end-to-end encryption, open-source review, low data collection” Claude Haiku 4.5 · In-app messaging · negative prompt · first choice
“Prioritize apps with default E2EE (e.g., Signal tops most privacy scores, collects minimal data)” Grok 4.1 Fast · In-app messaging · negative prompt · first choice
“Signal - Best overall privacy, E2EE for everything, minimal data collection” Mistral Small · In-app messaging · negative prompt · first choice
“Signal - Gold standard, E2E encrypted by default, open source” GLM 4.7 FlashX · In-app messaging · negative prompt · first choice

And against it

Verbatim evidence attached to negative labels. A warning on a product with few labels is a warning; on a product with many, it is one voice among them.

“as a standalone, legacy client-side tag manager, it is functionally obsolete and no longer supported in its original form” Gemini 3.5 Flash · Tag management · negative prompt · hard negative
“Failed to sustain its identity as a tag manager, and the name/technology was absorbed or decommissioned” DeepSeek V4 Flash · Tag management · negative prompt · hard negative

Named alongside

The products named in the same answers as Signal, over the 23 answers that named it. Took the first choice instead counts the answers where the other product was the first choice and Signal was named but was not.
ProductSame answerTook the first choice insteadHead to head
WhatsApp15 of 230Not in the top three
Telegram12 of 230Not in the top three
Facebook Messenger11 of 230Not in the top three
Discord8 of 230Not in the top three
Microsoft Teams7 of 231Not in the top three
iMessage7 of 230Not in the top three
Wire6 of 232Not in the top three
Google Tag Manager6 of 231Not in the top three
Slack6 of 230Not in the top three
Mattermost5 of 231Not in the top three
A head-to-head page exists where both products are in a category's top three. The other rows are the same fact without a page behind them, so they link to the product instead.

What carried it into the answer

The sites and pages cited by the answers that named Signal. A fact about retrieval, not a lever on the model.

Citations exist only for the models that return a source list, four of the twelve in this edition, so these counts come from 1 of the 23 answers that named Signal and are not a share of its labels.

Names read as Signal

What the judge wrote, as written, with how often. The vendor table decides that these count as Signal; a claim can dispute any of them.
Signal (formerly BrightTag) 1
Is this your product?

Claim this page

Claiming is free and changes nothing in the data. A claimed page shows a verified contact who is told when each edition publishes and when Signal's standing changes by more than the noise floor; the right to propose corrections to the vendor table, meaning names the judge wrote that should or should not read as Signal, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.

It does not get any change to labels, shares or verdicts, any preview, or any say over which quotes appear. A verification link goes to your work email; an address at signalgenesys.com is approved on the spot, any other address is reviewed by hand.

Your name and company appear on the claimed page, or the company alone if you ask below. A title and a LinkedIn address appear there too if you give them, and are left off if you do not. Your email address is never published.