# Sumday: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 1 judge label across 1 category by 1 of 14 models. Page: https://www.gane.ai/index/finance/vendors/sumday

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [ESG and carbon reporting](https://www.gane.ai/index/finance/corporate/esg-and-carbon-reporting/index.md) | 0% | 73 | 0% | 1 |

## What the models said for it

- "Sumday *(Best for Finance-Led ESG Reporting)*" (Gemini 3.5 Flash, ESG and carbon reporting)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 0 | 0 | 0 | 0 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 1 | 0 | 0 | 1 |
| Perplexity Sonar | 0 | 0 | 0 | 0 | 0 |
| Grok 4.20 | 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 |

## Sources returned with these answers

The sites and pages cited by the answers that named Sumday, from 2 of the 3 answers that named it (only the models that return a source list).

### Domains cited

- reddit.com: 2
- brightest.io: 1
- chatfin.ai: 1
- climefy.com: 1
- dcycle.io: 1
- dealroom.co: 1
- energycap.com: 1
- envoria.com: 1
- esgnews.com: 1
- gitnux.org: 1

### Pages cited

- https://reddit.com/r/smallbusiness/comments/1kmh5xa/building_affordable_esg_reporting_for_smbs_would: 2
- https://brightest.io/best-esg-reporting-software: 1
- https://chatfin.ai/blog/top-10-ai-tools-for-esg-sustainability-reporting: 1
- https://climefy.com/blog/top-5-esg-compliance-software: 1
- https://dcycle.io/blog/best-esg-software: 1
- https://dealroom.co/charts/landscape-50923-esg-data-providers-and-reporting-software-startups.html: 1
- https://energycap.com/blog/sustainability-reporting-platform: 1
- https://envoria.com/insights-news/esg-software-comparison-2026-top-5-providers-at-a-glance: 1

## 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, 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://www.gane.ai/index/finance/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/finance.