# Persefoni: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 30 judge labels across 1 category by 13 of 14 models. Page: https://www.gane.ai/index/finance/vendors/persefoni

## 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) | 17% | 2 | 10% | 30 |

## What the models said for it

- "It is widely considered the most accessible platform for companies that don't have a large sustainability team." (Qwen 3.7 Flash, ESG and carbon reporting)
- "Best budget pick: Persefoni Pro—if your main need is carbon accounting and climate reporting." (GPT-6 Luna, ESG and carbon reporting)
- "The best ESG reporting software for a company with a limited budget is Persefoni, which is free." (Llama 4 Maverick, ESG and carbon reporting)
- "Persefoni is the strongest starting point if its free tier meets your needs" (Perplexity Sonar, ESG and carbon reporting)

## And against it

- "technically rigorous but are generally framed for enterprises & financial institutions with complex regulatory needs and pricing/complexity" (Muse Glimmer 30B, ESG and carbon reporting)
- "The paid tier jumps to ~$55k/year, which is unrealistic for most small companies." (DeepSeek V4 Flash, ESG and carbon reporting)
- "far more accessible than enterprise platforms like Persefoni ($50K–$200K)" (DeepSeek V4 Flash, ESG and carbon reporting)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 0 | 2 | 0 | 0 | 2 |
| GPT-5.4 mini | 0 | 1 | 0 | 0 | 1 |
| Gemini 3.5 Flash | 0 | 1 | 0 | 0 | 1 |
| Perplexity Sonar | 1 | 2 | 0 | 0 | 3 |
| Grok 4.20 | 0 | 2 | 1 | 0 | 3 |
| Mistral Small | 0 | 1 | 1 | 0 | 2 |
| DeepSeek V4 Flash | 1 | 0 | 0 | 2 | 3 |
| Llama 4 Maverick | 1 | 0 | 0 | 0 | 1 |
| Qwen 3.7 Flash | 1 | 2 | 1 | 0 | 4 |
| Kimi K2 | 0 | 0 | 0 | 0 | 0 |
| GLM 4.7 FlashX | 1 | 0 | 0 | 0 | 1 |
| MiniMax M2.5 | 2 | 1 | 0 | 0 | 3 |
| GPT-6 Luna | 1 | 2 | 0 | 0 | 3 |
| Muse Glimmer 30B | 1 | 0 | 1 | 1 | 3 |

## Sources returned with these answers

The sites and pages cited by the answers that named Persefoni, from 81 of the 90 answers that named it (only the models that return a source list).

### Domains cited

- g2.com: 33
- toolradar.com: 29
- cubemos.com: 17
- fanruan.com: 17
- persefoni.com: 17 (its own site)
- seedling.earth: 17
- greenly.earth: 16
- carbonmarketnetwork.com: 15
- softwareadvice.com: 15
- capterra.com: 14

### Pages cited

- https://toolradar.com/guides/best-esg-reporting-software: 24
- https://cubemos.com/en/blog/esg-software-vergleich: 17
- https://softwareadvice.com/esg/small-business: 14
- https://upes.ac.in/blog/business/esg-reporting-software-tools-and-benefits: 14
- https://fanruan.com/en/blog/top-sustainability-reporting-tools: 12
- https://capterra.com/esg-software: 11
- https://carbonmarketnetwork.com/blog/best-carbon-accounting-software: 11
- https://climatepartner.com/en/knowledge/blog/best-carbon-accounting-software-2026: 10

## In its own words

What Persefoni's own pages state, read 2026-09-28. Stated by the vendor, not checked by the index.

- Positioning: Carbon Accounting and Sustainability Management Platform (https://persefoni.com/)
- For: Businesses of all sizes and complexities; financial services companies; customers, investors, and regulators (https://persefoni.com/)
- Price stated: Free (https://www.persefoni.com/pricing)
- Starting price: Free (https://www.persefoni.com/pricing)
- Free plan or trial: Sign up free (https://persefoni.com/)
- Certifications: SOC 1 Type II, SOC 2 Type II, ISO 27001, ISO 27017
- Customers named: Xerox, Caliber, Natera, Pittsburgh Penguins, At Home, FM Conway, CGE Partners, Workiva

## What it publishes

Every page persefoni.com exposes, read 2026-09-29: 3372 addresses. By kind, pages and the last 90 days:

- blog: 597 pages, 12 in the last 90 days, latest 2026-09-24
- case study: 41 pages, 0 in the last 90 days, latest undated
- webinar or virtual event: 25 pages, 0 in the last 90 days, latest 2025-05-22
- conference or event: 121 pages, 0 in the last 90 days, latest 2025-06-26
- comparison: 8 pages, 0 in the last 90 days, latest 2025-07-28
- template or tool: 2 pages, 2 in the last 90 days, latest 2026-09-22
- glossary or explainer: 14 pages, 0 in the last 90 days, latest 2026-05-07
- podcast or video: 46 pages, 0 in the last 90 days, latest undated
- news or press: 6 pages, 0 in the last 90 days, latest undated
- Recent: 2026-09-24 blog: California sb253 sb261 https://www.persefoni.com/blog/california-sb253-sb261
- Recent: 2026-09-22 template or tool: Sb 253 compliance checklist https://www.persefoni.com/blog/sb-253-compliance-checklist
- Recent: 2026-09-22 template or tool: Sb 253 compliance checklist https://www.persefoni.com/en-gb/blog/sb-253-compliance-checklist
- Recent: 2026-08-31 blog: Climate policy roundup august 2026 https://www.persefoni.com/blog/climate-policy-roundup-august-2026
- Recent: 2026-08-31 blog: Climate policy roundup august 2026 https://www.persefoni.com/en-gb/blog/climate-policy-roundup-august-2026
- Recent: 2026-08-24 blog: Iso iec 42001 certification ai management https://www.persefoni.com/blog/iso-iec-42001-certification-ai-management

## 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.