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Index Equity and corporate ESG and carbon reporting › Plan A vs EcoOnline ESG
ESG and carbon reporting · September 2026 Edition

Plan A vs EcoOnline ESG

Zero of twelve models named Plan A first on the direct prompt; three named EcoOnline ESG. Plan A was named by ten of the twelve models and EcoOnline ESG by nine and Plan A carries 14 labels and EcoOnline ESG 12, so the shares are not directly comparable.

Plan A

accepted challenger

Named in one category this edition.

EcoOnline ESG

accepted challenger

Named in one category this edition.

First-choice share10%8%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate7%0%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#4#6A position in a field of 15; printed, not drawn.
Labels1412A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Plan A reading right to left. Rank and label count are printed, not drawn.Sweep was named alongside these two in eleven of the twelve direct answers. Sweep vs Plan A · Sweep vs EcoOnline ESG · Greenly vs Plan A

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.
Plan AFirst choices, of twelve modelsEcoOnline ESG
Direct03
Paraphrase40
Comparative00
Budget-constrained01
Scale-constrained10
Negative001 against Plan A
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.

Every model, every framing

The seventy-two answers behind the chart above, one cell each: where Plan A and EcoOnline ESG stood in it.
ModelDirectParaphraseComparativeBudget-constrainedScale-constrainedNegative
Claude Haiku 4.5
GPT-5.4 mini
Gemini 3.5 Flash
Perplexity Sonar
Grok 4.1 Fast
Mistral Small
DeepSeek V4 Flash
Llama 4 Maverick
Qwen 3.7 Flash
Kimi K2
GLM 4.7 FlashX
MiniMax M2.5
Plan A EcoOnline ESG first choice named as an alternative argued againstblank: not namedEach cell is one answer, Plan A on the left and EcoOnline ESG on the right.

The direct prompt

The plain question, one answer per model, grouped by where Plan A and EcoOnline ESG stood in it.

EcoOnline ESG first, Plan A an alternative

3 of 12 modelsPlan A was named in the answer but not as the choice, or not at all.
Claude Haiku 4.5EcoOnline ESG alternatives: Greenstone, Normative, Sphera, Sweep
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

4 of 12 modelsThe answer put something else first and named one of the two as an alternative.
Perplexity SonarNovisto alternatives: EcoOnline ESG, Greenly, Novata, Sweep
Mistral SmallSweep alternatives: Coolset, EcoOnline ESG
DeepSeek V4 FlashSweep alternatives: Coolset, Greenly, Plan A, Tanso
GLM 4.7 FlashXNovisto alternatives: EcoOnline ESG, Greenly, Sustain.Life, Sweep

Neither was named

5 of 12 modelsThe answer made no first choice from these two in this category.
GPT-5.4 miniWorkiva alternatives: IBM Envizi, Novisto, Sphera
Gemini 3.5 FlashGreenly, Sweep alternatives: Coolset, Novata
Grok 4.1 FastSweep alternatives: Coolset, Novisto
Qwen 3.7 FlashNovisto alternatives: Gravity, LogicGate, Sweep
Kimi K2Novisto alternatives: Coolset, Sustain.Life, Sweep, Workiva

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
Level: the same share of first choices.
Plan A0%#– of 13
EcoOnline ESG0%#– of 13
The full small business standing →
Mid-marketThe figures above
Plan A leads by two points.
Plan A10%#4 of 15
EcoOnline ESG8%#6 of 15
The full mid-market standing →
Enterprise
EcoOnline ESG is not named for this buyer.
Plan A0%#– of 12
EcoOnline ESGnot named
The full enterprise standing →

What the models said about Plan A

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

“unproven mid-market carbon tools like Sweep, Plan A, or lower-rated ones” Grok 4.1 Fast · negative prompt · soft negative
“For a broader range of compliance frameworks and a focus on decarbonisation, Plan A is a strong alternative.” Mistral Small · paraphrase 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
“If you want a single default recommendation, I'd choose Plan A for most mid-sized B2B companies” Perplexity Sonar · paraphrase prompt · first choice

What the models said about EcoOnline ESG

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

“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
Also compared

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