# Coolset vs EcoOnline ESG: which do AI models recommend for ESG and carbon reporting, September 2026

Finance AI Recommendation Index, September 2026 Edition, ESG and carbon reporting. Zero of twelve models named Coolset first on the direct prompt; three named EcoOnline ESG. Page: https://finance-ai-index.com/corporate/esg-and-carbon-reporting/coolset-vs-ecoonline-esg/

| | First-choice share | Rank | Negative rate | Labels | Models naming it |
|---|---|---|---|---|---|
| Coolset | 8% | #5 of 15 | 0% | 19 | 10 of 12 |
| EcoOnline ESG | 8% | #6 of 15 | 0% | 12 | 9 of 12 |

## The direct prompt, model by model

- Claude Haiku 4.5: ecoonline esg first (first choices: EcoOnline ESG) (alternatives: Greenstone, Normative, Sphera, Sweep)
- Llama 4 Maverick: ecoonline esg first (first choices: EcoOnline ESG, Novisto, Sweep)
- MiniMax M2.5: ecoonline esg first (first choices: EcoOnline ESG, Sweep) (alternatives: Coolset, Normative, Novisto, Plan A)
- Gemini 3.5 Flash: neither first, one named (first choices: Greenly, Sweep) (alternatives: Coolset, Novata)
- Perplexity Sonar: neither first, one named (first choices: Novisto) (alternatives: EcoOnline ESG, Greenly, Novata, Sweep)
- Grok 4.1 Fast: neither first, one named (first choices: Sweep) (alternatives: Coolset, Novisto)
- Mistral Small: neither first, one named (first choices: Sweep) (alternatives: Coolset, EcoOnline ESG)
- DeepSeek V4 Flash: neither first, one named (first choices: Sweep) (alternatives: Coolset, Greenly, Plan A, Tanso)
- Kimi K2: neither first, one named (first choices: Novisto) (alternatives: Coolset, Sustain.Life, Sweep, Workiva)
- GLM 4.7 FlashX: neither first, one named (first choices: Novisto) (alternatives: EcoOnline ESG, Greenly, Sustain.Life, Sweep)
- GPT-5.4 mini: neither named (first choices: Workiva) (alternatives: IBM Envizi, Novisto, Sphera)
- Qwen 3.7 Flash: neither named (first choices: Novisto) (alternatives: Gravity, LogicGate, Sweep)

## What the models said about Coolset

- "Coolset is frequently cited as the "go-to" for mid-market companies... Choose Coolset if you are in Europe and need strict regulatory compliance (CSRD)" (Qwen 3.7 Flash, paraphrase prompt, first choice)
- "Prioritize platforms suited for 500–5,000 employees, like Coolset, ESG:ONE, EcoOnline, or Novisto... Shortlist 3–5: Coolset (multi-framework, AI)" (Grok 4.1 Fast, scale prompt, first choice)
- "Sweep / Coolset / Plan A / ESG:ONE: These are specifically built for upper-mid-market companies." (Gemini 3.5 Flash, scale prompt, first choice)

## What the models said about EcoOnline ESG

- "Sweep and EcoOnline appear to be the most consistently recommended options tailored to your size and needs" (MiniMax M2.5, direct prompt, first choice)
- "Best budget pick: EcoOnline — identified by Capterra as the "best budget option"" (GPT-5.4 mini, budget prompt, first choice)
- "EcoOnline ESG is highlighted as best for mid-market sustainability teams" (Claude Haiku 4.5, direct prompt, first choice)

Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all twelve 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.