# Sweep vs Persefoni: which do AI models recommend for ESG and carbon reporting, October 2026

Finance AI Recommendation Index, October 2026 Edition, ESG and carbon reporting. Six of fourteen models named Sweep first on the direct prompt; zero named Persefoni. Page: https://finance-ai-index.com/corporate/esg-and-carbon-reporting/sweep-vs-persefoni/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Sweep | 10% | #2 of 13 | 4% | 23 | 12 of 14 |
| Persefoni | 5% | #4 of 13 | 3% | 30 | 14 of 14 |

## The direct prompt, model by model

- Grok 4.1 Fast: sweep first (first choices: Greenly, Sweep) (alternatives: Horizon ESG, cubemos)
- Mistral Small: sweep first (first choices: Sweep) (alternatives: EcoOnline ESG, Novata)
- DeepSeek V4 Flash: sweep first (first choices: Sweep) (alternatives: Coolset, Greenly, Novisto)
- Llama 4 Maverick: sweep first (first choices: Sweep) (alternatives: EcoOnline ESG, Novata)
- MiniMax M2.5: sweep first (first choices: Plan A, Sweep) (alternatives: EcoOnline ESG, Novata)
- Muse Glimmer 30B: sweep first (first choices: Novisto, Sweep) (alternatives: Coolset, Novata)
- Claude Haiku 4.5: neither first, one named (first choices: EcoOnline ESG) (alternatives: Coolset, Novata, Sweep)
- Gemini 3.5 Flash: neither first, one named (first choices: Coolset, Greenly) (alternatives: Gravity, KEY ESG, Novata, Sweep)
- Perplexity Sonar: neither first, one named (first choices: Greenly) (alternatives: EcoOnline ESG, Novata, Novisto, Sweep)
- Qwen 3.7 Flash: neither first, one named (first choices: Watershed) (alternatives: Carbon Cloud, Enablon, Persefoni, PlanA, Sphera)
- GLM 4.7 FlashX: neither first, one named (first choices: Workiva) (alternatives: Greenly, Measurabl, Novisto, Persefoni, Position Green)
- GPT-5.4 mini: neither named (first choices: Workiva) (alternatives: Credibl ESG, IBM Envizi, Microsoft Cloud for Sustainability)
- Kimi K2: neither named (first choices: Novata, Position Green) (alternatives: Greenly, Novisto, Workiva)
- GPT-6 Luna: neither named (first choices: Greenly) (alternatives: Novisto, Workiva)

## What the models said about Sweep

- "up to enterprise quotes for Sweep, IBM Envizi, and Workiva" (Muse Glimmer 30B, budget prompt, soft negative)
- "Sweep is frequently highlighted as the best ESG reporting software for mid-market B2B companies" (Mistral Small, direct prompt, first choice)
- "Sweep or Greenly edge out for pure mid-market B2B value based on these sources." (Grok 4.1 Fast, direct prompt, first choice)
- "Sweep — Best for mid-market companies building a carbon management programme" (Muse Glimmer 30B, direct prompt, first choice)

## What the models said about Persefoni

- "good for complex organizations, but may be overkill for mid-sized" (GLM 4.7 FlashX, paraphrase prompt, soft negative)
- "Choose Watershed or Persefoni if: Your primary immediate pain point is calculating Scope 1, 2, and 3 emissions accurately" (Qwen 3.7 Flash, comparative prompt, first choice)
- "Start for free with carbon + basic reporting: Persefoni Pro." (Muse Glimmer 30B, budget prompt, first choice)
- "Best overall for a mid-sized B2B company: Persefoni" (GPT-5.4 mini, paraphrase prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category. Comparisons are drawn for the top eight products in each category. Published under CC BY 4.0; the output is the models' output, and nothing here is a recommendation by the index.