# ESG and carbon reporting for enterprise buyers: what AI models recommend, October 2026

Gane Index, October 2026 Edition. Asked as "ESG reporting software" and as "carbon accounting platform", six framings each, to fourteen models with search on, on behalf of an enterprise B2B company. Page: https://www.gane.ai/index/finance/corporate/esg-and-carbon-reporting/2026-10/enterprise

This is the permanent record of the October 2026 Edition, published October 1, 2026 and superseded since. The current standing: https://www.gane.ai/index/finance/corporate/esg-and-carbon-reporting/enterprise/index.md

**Standing:** Workiva ESG leads with 37% of first choices; verdict contested. 49 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| Rank | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | [Workiva ESG](https://www.gane.ai/index/finance/vendors/workiva-esg/index.md) | 37% | 13% | 46 |
| 2 | [Watershed](https://www.gane.ai/index/finance/vendors/watershed/index.md) | 33% | 9% | 35 |
| 3 | [IBM Envizi](https://www.gane.ai/index/finance/vendors/ibm-envizi/index.md) | 6% | 12% | 42 |
| 4 | [Persefoni](https://www.gane.ai/index/finance/vendors/persefoni/index.md) | 6% | 4% | 28 |
| 6 | [Sweep](https://www.gane.ai/index/finance/vendors/sweep/index.md) | 2% | 10% | 20 |
| 7 | [Novisto](https://www.gane.ai/index/finance/vendors/novisto/index.md) | 2% | 6% | 18 |
| 8 | [SAP Sustainability Control Tower](https://www.gane.ai/index/finance/vendors/sap-sustainability-control-tower/index.md) | 2% | 29% | 21 |
| 13 | [SpheraCloud Corporate Sustainability](https://www.gane.ai/index/finance/vendors/spheracloud-corporate-sustainability/index.md) | 0% | 5% | 21 |
| 14 | [Microsoft Cloud for Sustainability](https://www.gane.ai/index/finance/vendors/microsoft-cloud-for-sustainability/index.md) | 0% | 15% | 13 |
| 15 | [Diligent ESG](https://www.gane.ai/index/finance/vendors/diligent-esg/index.md) | 0% | 18% | 11 |
| 73 | [Salesforce Net Zero Cloud](https://www.gane.ai/index/finance/vendors/salesforce-net-zero-cloud/index.md) | 0% | 42% | 12 |

Rank is by share of first choices among all 83 products named; products with the same share are tied, and the order among them carries no meaning. The table lists those with at least 10 labels.

## Each model's first choice on the direct prompt

- Claude Haiku 4.5: Workiva ESG; alternatives IBM Envizi, SpheraCloud Corporate Sustainability
- GPT-5.4 mini: Watershed, Workiva ESG
- Gemini 3.5 Flash: Watershed, Workiva ESG; alternatives IBM Envizi, Pulsora, Salesforce Net Zero Cloud, Sweep
- Perplexity Sonar: Workiva ESG; alternatives IBM Envizi
- Grok 4.20: Watershed, Workiva ESG; alternatives Enablon, IBM Envizi, SINAI, Sweep
- Mistral Small: Sweep, Workiva ESG; alternatives Breathe Zero, Diligent ESG, Optera
- DeepSeek V4 Flash: Workiva ESG; alternatives IBM Envizi, Microsoft Cloud for Sustainability, Normative, Persefoni
- Llama 4 Maverick: no first choice
- Qwen 3.7 Flash: Workiva ESG; alternatives IBM Envizi, Microsoft Cloud for Sustainability, Novisto, Sweep
- Kimi K2: Workiva ESG; alternatives Persefoni, SpheraCloud Corporate Sustainability
- GLM 4.7 FlashX: Workiva ESG; alternatives Emission Twin, IBM Envizi, Novisto, SAP Sustainability Control Tower
- MiniMax M2.5: IBM Envizi; alternatives CCH Tagetik ESG & Sustainability Performance Management, Credibl, Diligent ESG, Novisto
- GPT-6 Luna: Workiva ESG; alternatives Novisto, SAP Sustainability Control Tower, Watershed
- Muse Glimmer 30B: Novisto, Workiva ESG; alternatives IBM Envizi, Microsoft Cloud for Sustainability

## Sources the answers cite

82 of 84 answers came back with a source list, from 14 of 14 models. Sites named in the most answers:

- onestopesg.com: 34 answers, 39 citations
- guideflow.com: 33 answers, 40 citations
- fanruan.com: 29 answers, 33 citations
- pulsora.com: 28 answers, 30 citations
- coolset.com: 26 answers, 26 citations
- g2.com: 24 answers, 32 citations
- keyesg.com: 22 answers, 25 citations
- techtarget.com: 22 answers, 22 citations

Pages named in the most answers:

- https://guideflow.com/blog/esg-reporting-software (32 answers)
- https://coolset.com/academy/best-esg-reporting-software-tools (26 answers)
- https://onestopesg.com/esg-resources/best-esg-reporting-software (24 answers)
- https://pulsora.com/blog/best-esg-reporting-software (21 answers)
- https://emissiontwin.com/blog/best-esg-reporting-software (20 answers)
- https://fanruan.com/en/blog/top-sustainability-reporting-tools (16 answers)
- https://techtarget.com/it-strategy/feature/18-sustainability-management-software-providers-to-consider (14 answers)
- https://gartner.com/reviews/market/esg-management-and-reporting-software (13 answers)
- https://watershed.com/blog/esg-software-in-2026-the-buyers-guide (12 answers)
- https://coherentmarketinsights.com/blog/information-and-communication-technology/7-esg-reporting-disclosure-platforms-enterprise-teams-3544 (12 answers)

## Warned against

- Workiva ESG: 6 of 46 labels negative. "Avoid If: Smaller ESG teams or carbon-first priorities; budget-sensitive without finance-led reporting." (Grok 4.20, negative prompt)
- SAP Sustainability Control Tower: 6 of 21 labels negative. "Per-user kills predictability at scale" (Grok 4.20, budget prompt)
- IBM Envizi: 5 of 42 labels negative. "Several platforms, like IBM Envizi, receive feedback about being powerful but complex to configure—requiring extensive setup phases and expert assistance." (MiniMax M2.5, negative prompt)
- Salesforce Net Zero Cloud: 5 of 12 labels negative. "What to Avoid for Your Specific Needs ... the seat-license math can become incredibly expensive and complex." (Gemini 3.5 Flash, budget prompt)

## Movement since September 2026

Floor: 10 points of share, measured on the calibration repeat.
Same leader: Workiva ESG at 38%.

- Watershed: 20% to 33%, +13. Cleared the floor by 3 points · rank 2 of 72, unchanged.
- Sweep: 6% to 2%, −4. Inside the floor by 6 points · rank 4 → 6 of 72.
- IBM Envizi: 10% to 7%, −3. Inside the floor by 7 points · rank 3 of 72, unchanged.
- Persefoni: 4% to 7%, +3. Inside the floor by 7 points · rank 5 → 4 of 72.
- SAP Sustainability Control Tower: 0% to 2%, +2. Inside the floor by 8 points · rank 29 → 8 of 72.
- Enablon: 2% to 0%, −2. Inside the floor by 8 points · rank 9 → 14 of 72.
- Normative: 2% to 0%, −2. Inside the floor by 8 points · rank 7 → 15 of 72.
- Salesforce Net Zero Cloud: 2% to 0%, −2. Inside the floor by 8 points · rank 10 → 67 of 72.
- Workiva ESG: 38% to 38%, ±0. Inside the floor by 10 points · rank 1 of 72, unchanged.
- SpheraCloud Corporate Sustainability: 0% to 0%, ±0. Inside the floor by 10 points · rank 18 → 10 of 72.
- Novisto: 0% to 0%, ±0. Inside the floor by 10 points · rank 16 → 11 of 72.
- Microsoft Cloud for Sustainability: 0% to 0%, ±0. Inside the floor by 10 points · rank 51 → 12 of 72.

## Record

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