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

Finance AI Recommendation 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 a small B2B company. Page: https://finance-ai-index.com/corporate/esg-and-carbon-reporting/smb/

**Standing:** Greenly leads with 48% of first choices; verdict clear leader. 52 first choices across the direct, paraphrase, budget and scale prompts.

## First-choice share

| # | Product | Share | Negative rate | Labels |
|---|---|---|---|---|
| 1 | Greenly | 48% | 3% | 64 |
| 2 | Sustain.Life | 6% | 10% | 20 |
| 3 | Persefoni | 4% | 24% | 21 |
| 4 | Normative | 2% | 0% | 21 |
| 5 | Novata | 2% | 0% | 16 |
| 6 | Workiva | 2% | 71% | 35 |
| 7 | Sweep | 0% | 19% | 21 |
| 8 | ESGgo | 0% | 0% | 10 |
| 9 | Plan A | 0% | 0% | 10 |
| 10 | Diligent ESG | 0% | 57% | 14 |
| 11 | IBM Envizi | 0% | 79% | 14 |
| 12 | Watershed | 0% | 79% | 19 |

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

- Claude Haiku 4.5: Greenly, Sustain.Life; alternatives Code Gaia, ESGenius!
- GPT-5.4 mini: ESG Cockpit, Ecodiligence; alternatives Diligent ESG, IBM Envizi
- Gemini 3.5 Flash: Dcycle; alternatives Brightest, ESG Lift, Planmark, Workiva Carbon
- Perplexity Sonar: Greenly; alternatives ESGendium
- Grok 4.1 Fast: Greenly; alternatives Normative, Sustain.Life, Workiva
- Mistral Small: Greenly; alternatives Coolset, Normative, Tracera
- DeepSeek V4 Flash: Greenly, Novata; alternatives Manglai
- Llama 4 Maverick: Greenly; alternatives ESGendium, Sweep
- Qwen 3.7 Flash: Greenly; alternatives EcoVadis, Novata, Sustain.Life
- Kimi K2: Greenly; alternatives ESG Lift, Metrio, Multiplye
- GLM 4.7 FlashX: Greenly; alternatives ESGgo, Novata, Sustain.Life
- MiniMax M2.5: Greenly; alternatives Benchmark Gensuite, Ecometrica, SAP Sustainability Control Tower, Sphera
- GPT-6 Luna: Persefoni; alternatives Greenly
- Muse Glimmer 30B: Workiva; alternatives Greenly, Pledge Carbon, Scope

## Sources the answers cite

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

- onestopesg.com: 46 answers, 55 citations
- tracera.com: 33 answers, 33 citations
- coolset.com: 29 answers, 29 citations
- g2.com: 26 answers, 49 citations
- toolradar.com: 26 answers, 33 citations
- fanruan.com: 26 answers, 27 citations
- linkedin.com: 24 answers, 25 citations
- us.fitgap.com: 23 answers, 28 citations

Pages named in the most answers:

- https://tracera.com/best-esg-software-platforms (33 answers)
- https://coolset.com/academy/best-esg-reporting-software-tools (27 answers)
- https://toolradar.com/best/esg-reporting/for/small-businesses (24 answers)
- https://onestopesg.com/esg-resources/best-esg-reporting-software (23 answers)
- https://fanruan.com/en/blog/top-sustainability-reporting-tools (22 answers)
- https://onestopesg.com/esg-resources/best-sustainability-management-software (22 answers)
- https://us.fitgap.com/search/environmental-social-and-governance-esg-reporting-software/small-business (20 answers)
- https://energycap.com/blog/sustainability-reporting-platform (18 answers)
- https://linkedin.com/pulse/best-esg-reporting-software-platforms-2026-onestopesg-c4rwc (17 answers)
- https://councilfire.org/guides/top-5-esg-frameworks-for-smes (15 answers)

## Warned against

- Workiva: 25 of 35 labels negative. "Enterprise-Focused Platforms with High Costs and Complexity - Examples: Workiva... Why avoid: These platforms are designed for large corporations" (Mistral Small, negative prompt)
- IBM Envizi: 11 of 14 labels negative. "Specific platforms to be cautious about: IBM Envizi ESG Suite: This platform is expensive for medium and small-scale organizations" (Claude Haiku 4.5, negative prompt)
- Watershed: 15 of 19 labels negative. "Enterprise Tools (Not Recommended for Tight Budgets)... Workiva, IBM Envizi, and Watershed fall into this category" (GLM 4.7 FlashX, budget prompt)
- Diligent ESG: 8 of 14 labels negative. "best for medium to large size companies ... a steep learning curve, difficult report customization" (Claude Haiku 4.5, negative prompt)

## Movement since September 2026

Floor: 10 points of share, measured on the calibration repeat.
Same leader: Greenly at 50%.

- ExecutESG: 13% to 2%, −11. Cleared the floor by 1 point · rank 2 → 9 of 106.
- Greenly: 41% to 50%, +9. Inside the floor by 1 point · rank 1 of 106, unchanged.
- Persefoni: 9% to 2%, −7. Inside the floor by 3 points · rank 4 → 11 of 106.
- Wardn: 7% to 0%, −7. Inside the floor by 3 points · rank 5 → 29 of 106.
- Sustain.Life: 9% to 7%, −2. Inside the floor by 8 points · rank 3 → 2 of 106.
- Normative: 0% to 2%, +2. Inside the floor by 8 points · rank 19 → 6 of 106.
- Novata: 0% to 2%, +2. Inside the floor by 8 points · rank 50 → 7 of 106.
- Coolset: 0% to 2%, +2. Inside the floor by 8 points · rank 15 → 8 of 106.
- Aclymate: 4% to 4%, ±0. Inside the floor by 10 points · rank 6 → 4 of 106.
- Sweep: 0% to 0%, ±0. Inside the floor by 10 points · rank 18 → 20 of 106.
- Novisto: 0% to 0%, ±0. Inside the floor by 10 points · rank 79 → 72 of 106.
- Diligent ESG: 0% to 0%, ±0. Inside the floor by 10 points · rank 83 → 100 of 106.

## Record

- Method: https://finance-ai-index.com/methodology/
- Raw judge labels and full responses: https://finance-ai-index.com/data/
- License: CC BY 4.0. Cite as Finance AI Recommendation Index, October 2026 Edition, finance-ai-index.com.