# Sumday: how AI models rank it, October 2026

Finance AI Recommendation Index, October 2026 Edition. Named in 1 judge labels across 1 categories by 1 of 14 models. Page: https://finance-ai-index.com/vendors/sumday/

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| ESG and carbon reporting | 2% | 22 | 0% | 1 |

## What the models said for it

- "If your CFO/Finance Team is owning it: Choose Sumday." (Gemini 3.5 Flash, ESG and carbon reporting)

## Movement since September 2026

Floor: 10 points of share, measured on the calibration repeat. A larger change is movement; a smaller one is noise.

- ESG and carbon reporting: 0% to 2%, +2. Inside the floor by 8 points · rank 47 → 22 of 110.

## In its own words

What Sumday's own pages state, read 2026-10-06. Stated by the vendor, not checked by the index.

- Positioning: AI Native Software for Sustainability and Procurement (https://sumday.io/)
- For: organisations who care about the impact of their decisions on people and the planet (https://sumday.io/)
- Certifications: ISO 27001, SOC 2 Type II, SOC 2, GDPR, UK GDPR

## What it publishes

Every page sumday.io exposes, read 2026-09-29: 70 addresses. By kind, pages and the last 90 days:

- blog: 26 pages, 0 in the last 90 days, latest 2026-06-05
- comparison: 1 pages, 0 in the last 90 days, latest 2026-05-07
- Recent: 2026-06-05 blog: Carbon accounting for universities https://www.sumday.io/blog/carbon_accounting_for_universities
- Recent: 2026-05-14 blog: Federal Budget Climate Energy https://www.sumday.io/blog/Federal_Budget_Climate_Energy
- Recent: 2026-05-10 blog: Building ai agents lessons shared https://www.sumday.io/blog/building-ai-agents-lessons-shared
- Recent: 2026-05-10 blog: Why we built sumday carbon https://www.sumday.io/blog/why-we-built-sumday-carbon
- Recent: 2026-05-09 blog: Why we work with the public sector https://www.sumday.io/blog/why-we-work-with-the-public-sector
- Recent: 2026-05-08 blog: Sumday ai services firm what that means https://www.sumday.io/blog/sumday-ai-services-firm-what-that-means

## Record

- Method: https://finance-ai-index.com/methodology/
- Raw judge labels and full responses: https://finance-ai-index.com/data/
- License: CC BY 4.0. Cite as Finance AI Recommendation Index, October 2026 Edition, finance-ai-index.com.