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ESG and carbon reporting · September 2026 Edition

Sweep vs Greenly

Six of twelve models named Sweep first on the direct prompt; one named Greenly. Sweep was named by eleven of the twelve models and Greenly by twelve and Sweep carries 37 labels and Greenly 26, so the shares are not directly comparable.

Sweep

accepted challenger

Named in one category this edition.

Greenly

accepted challenger

Named in one category this edition.

First-choice share25%13%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate3%8%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#1#2A position in a field of 15; printed, not drawn.
Labels3726A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Sweep reading right to left. Rank and label count are printed, not drawn.Novisto was named alongside these two in eight of the twelve direct answers. Sweep vs Novisto · Greenly vs Novisto

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; every quote names the model and the prompt it came from. Both figures come from the ESG and carbon reporting page.

By framing

How many of the twelve models made each the first choice, per way of asking, and how many argued against it.
SweepFirst choices, of twelve modelsGreenly
Direct61
Paraphrase55
Comparative00
Budget-constrained11
Scale-constrained10
Negative001 against Sweep · 2 against Greenly
Bars are first choices, 0 to 12 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to twelve.

The direct prompt

The plain question, one answer per model, grouped by where Sweep and Greenly stood in it.

Both were the first choice

1 of 12 modelsThe answer named them together, and the judge labeled each a first choice.
Gemini 3.5 FlashGreenly, Sweep alternatives: Coolset, Novata

Sweep first, Greenly an alternative

5 of 12 modelsGreenly was named in the answer but not as the choice, or not at all.
Grok 4.1 FastSweep alternatives: Coolset, Novisto
Mistral SmallSweep alternatives: Coolset, EcoOnline ESG
DeepSeek V4 FlashSweep alternatives: Coolset, Greenly, Plan A, Tanso
Llama 4 MaverickEcoOnline ESG, Novisto, Sweep
MiniMax M2.5EcoOnline ESG, Sweep alternatives: Coolset, Normative, Novisto, Plan A

Neither was the first choice, one was named

5 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Claude Haiku 4.5EcoOnline ESG alternatives: Greenstone, Normative, Sphera, Sweep
Perplexity SonarNovisto alternatives: EcoOnline ESG, Greenly, Novata, Sweep
Qwen 3.7 FlashNovisto alternatives: Gravity, LogicGate, Sweep
Kimi K2Novisto alternatives: Coolset, Sustain.Life, Sweep, Workiva
GLM 4.7 FlashXNovisto alternatives: EcoOnline ESG, Greenly, Sustain.Life, Sweep

Neither was named

1 of 12 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniWorkiva alternatives: IBM Envizi, Novisto, Sphera

Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.

By buyer segment

The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Greenly leads by forty-one points.
Greenly41%#1 of 13
Sweep0%#8 of 13
The full small business standing →
Mid-marketThe figures above
The order flips: Sweep leads at mid-market.
Sweep25%#1 of 15
Greenly13%#2 of 15
The full mid-market standing →
Enterprise
Sweep leads by six points.
Sweep6%#4 of 12
Greenly0%#– of 12
The full enterprise standing →

What the models said about Sweep

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Four of five in this category shown.

“some unproven mid-market carbon tools like Sweep, Plan A... lack robust data governance” Grok 4.1 Fast · negative prompt · soft negative
“For most mid-market B2B companies, Sweep offers the strongest balance of supply chain support, framework coverage, and mid-market-appropriate pricing.” DeepSeek V4 Flash · direct prompt · first choice
“Sweep or Plan A are excellent choices... If you are in Europe and require CSRD alignment, Sweep is highly recommended.” Mistral Small · paraphrase prompt · first choice
“Sweep and EcoOnline appear to be the most consistently recommended options tailored to your size and needs” MiniMax M2.5 · direct prompt · first choice

What the models said about Greenly

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.

“Examples of this category: Generic SaaS carbon footprints (e.g., early versions of Greenly, Normative, or basic carbon calculators). ... Why to be cautious” Qwen 3.7 Flash · negative prompt · soft negative
“users have flagged data accuracy issues” GLM 4.7 FlashX · negative prompt · soft negative
“Greenly is an intuitive, all-in-one sustainability platform designed to make carbon accounting simple and accessible, particularly for small-to-medium-sized businesses (SMBs) and mid-market companies.” Claude Haiku 4.5 · paraphrase prompt · first choice
“I'd usually recommend Greenly if you want the best balance of usability, automated carbon accounting, and fit for a mid-market team” GPT-5.4 mini · paraphrase prompt · first choice
“Greenly shines here because it is built around accessible carbon accounting, has a fast deployment time” Gemini 3.5 Flash · direct prompt · first choice
Also compared
Sweep vs NovistoGreenly vs NovistoThe full ESG and carbon reporting standing

Comparisons are drawn for the top three products in each category. The output is the models' output; nothing here is a recommendation by the index.