Mid-market▲+2Since September 2026: 0% → 2%, +2 points. Inside the 10-point floor: within noise. Read over the models both editions asked.
2%from 0% in September 2026
Inside the floor by 8 pointsRank 47 → 21 of 96
1 category · Named, not rankedSumday
1Judge labels
1First choices
0Negative labels
1 / 14Models named it
1Category
October 2026 Edition. Every number here is derived from the raw labels under vendor table v2026-10.7, every buyer segment counted.
Standing
1 label, too few to rank
A product needs 10 labels in a category before a share or quadrant is stated. Sumday was named 1 time in ESG and carbon reporting, where Greenly led with 36%. The labels and the evidence are below, counted exactly.
By buyer segmentRead the same way at every buyer size.
Small businessnot named
0%
No model named it for this buyer.
Mid-market22 of 110
2%1 label
under the label threshold
Enterprisenot named
0%
No model named it for this buyer.
In esg and carbon reporting · 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 Sumday 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.
| Category | Function | Share | Rank | Negative rate | Labels | Quadrant | Since September 2026 |
|---|---|---|---|---|---|---|---|
| ESG and carbon reporting | Equity and corporate | 2% | 22 of 110 | 0% | 1 | under 10 labels · led by Greenly at 36% | ▲+2Since September 2026: 0% → 2%, +2 points. Inside the 10-point floor: within noise. Read over the models both editions asked. |
Movement
Since September 2026, Sumday held within the floor in its one category: no change cleared 10 points.
Best category · ESG and carbon reporting · by segment
All categories · Mid-market
| Category | September 2026 | Now | Change | Reading | Rank |
|---|---|---|---|---|---|
| ESG and carbon reporting | 0% | 2% | ▲+2Since September 2026: 0% → 2%, +2 points. Inside the 10-point floor: within noise. Read over the models both editions asked. | Within noise | Rank 47 → 22 of 110 |
Shares here are read over the models both editions asked, so they can differ by a point or two from the standing above, which counts every model in this edition.
The floor is 10 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one is noise, and both are shown. Movement is read over the twelve models both editions asked; GPT-6 Luna, Muse Glimmer 30B joined this edition and are in the standing but not yet in the comparison. How the floor is measured · The editions
By model
How each model treated Sumday across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.ShowHide
By model
How each model treated Sumday across every prompt where it was named for a mid-market B2B company. Fourteen models, six prompts per category.
ShowHide| Model | First choice | Alternative | Mention | Negative | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 1 | 0 | 0 | 0 | 1 |
| Perplexity Sonar | 0 | 0 | 0 | 0 | 0 |
| Grok 4.1 Fast | 0 | 0 | 0 | 0 | 0 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 0 | 0 | 0 | 0 | 0 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 0 | 0 | 0 | 0 | 0 |
| GLM 4.7 FlashX | 0 | 0 | 0 | 0 | 0 |
| MiniMax M2.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-6 Luna | 0 | 0 | 0 | 0 | 0 |
| Muse Glimmer 30B | 0 | 0 | 0 | 0 | 0 |
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
Paraphrase1 label1
Comparative0 labelsNone
Budget-constrained0 labelsNone
Scale-constrained0 labelsNone
Negative0 labelsNone
First choiceAlternativeMentionNegative1 labels in all, every segment counted; 1 of the 1 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.
“If your CFO/Finance Team is owning it: Choose Sumday.” Gemini 3.5 Flash · ESG and carbon reporting · paraphrase 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.
No model argued against it.
Named alongside
The products named in the same answers as Sumday, over the 1 answer that named it. Took the first choice instead counts the answers where the other product was the first choice and Sumday was named but was not.ShowHide
Named alongside
The products named in the same answers as Sumday, over the 1 answer that named it. Took the first choice instead counts the answers where the other product was the first choice and Sumday was named but was not.
ShowHideProductSame answerTook the first choice insteadHead to head
A head-to-head page exists where both products are among a category's top eight. 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 Sumday. A fact about retrieval, not a lever on the model.
Citations exist only for the models that return a source list, five of the fourteen in this edition, so these counts come from 1 of the 1 answers that named Sumday and are not a share of its labels.
Domains cited
carbonchain.com1
climatepartner.com1
dcycle.io1
getgoodlab.com1
greenly.earth1
greenprojecttech.com1
keyesg.com1
manglai.io1
marketplace.microsoft.com1
netnada.com1
Ten of the ten domain citations in answers naming Sumday came from somebody else's page.
Pages cited
Pages are listed as the models cited them.
What it publishes
ShowHide
What it publishes
ShowHideAddresses on sumday.io
70
subdomains included
Content
27
counted in the table below
Documentation
1
Product · Integration
0 · 0
| Kind | Pages | Last 90 days | 2025-10 to 2026-09 | Latest | Categories named |
|---|---|---|---|---|---|
| Blog | 26 | 0 | 2026-06-05 | Accounting software | |
| Comparison | 1 | 0 | 2026-05-07 |
Most recent
- 2026-06-05Carbon accounting for universities blog
- 2026-05-14Federal Budget Climate Energy blog
- 2026-05-10Building ai agents lessons shared blog
- 2026-05-10Why we built sumday carbon blog
- 2026-05-09Why we work with the public sector blog
- 2026-05-08Sumday ai services firm what that means blog
How it is countedHide how it is counted
Every page sumday.io exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. Read September 29, 2026.
Follow Sumday
An email the morning each edition publishes: where this product moved, where it held, and by how much against the noise floor. One address, confirmed by a click; a stop link in every email.
Already following? Everything you follow, with a stop for each.
The company
Sumday is its own company.ShowHide
The company
Sumday is its own company.
ShowHideIn its own words
Stated by the vendor, not checked- Positioning
- AI Native Software for Sustainability and Procurement
- For
- organisations who care about the impact of their decisions on people and the planet
- Certifications
- ISO 27001SOC 2 Type IISOC 2GDPRUK GDPR
- Not stated on the pages read
- Price, starting price, free plan or trial, integrations, hosting, customers
What Sumday's own pages state, read October 6, 2026: sumday.io, trust.sumday.io. A claimed page can correct any of them.
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 Sumday'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 Sumday, applied by version and listed in the change log; and a one-line description supplied by the vendor and marked as such.
What a new claim receivesHide what a new claim receives
A new claim receives the current edition's vendor brief for Sumday by email, built from the raw record of the edition. It shows:
- where Sumday is named, by buyer and by framing, and which cells hold its first choices;
- the claims the models make when they name it, ranked, with the strongest and the weakest quoted;
- its vocabulary against the segment leader's, and the pages the models cited;
- who was chosen in the answers that did not name Sumday, and every reason the record gives;
- a battlecard for each top rival: the head-to-head split, why they win, and the reservation quoted against them;
- one page of published figures cleared to show a buyer.