Viro AI vs EcoGPT: Which Eco-Friendly AI Actually Delivers?

If you want an AI that is easier on the planet, two names come up: EcoGPT and Viro AI. Both are free to start and both call themselves green. Look closer and they are very different products, with very different ideas of what “green” means.

Viro AI is ours. Everything we say about EcoGPT below comes from EcoGPT’s own website, its App Store listing, or independent reporting, and each source is linked at the end.

The short version

• Viro AI gives you the real thing, ChatGPT, Claude and Gemini, plus its own model, and runs that model in named data centers powered by hydro, geothermal and wind. Every reply shows the energy it used.
• EcoGPT runs small models it doesn’t name, publishes no energy, carbon or water figures, and plants trees as you chat, inside an app with a growing forest world and daily games.

Viro AI vs EcoGPT at a glance

	Viro AI	EcoGPT
Models	ChatGPT, Claude and Gemini, plus Viro’s own model	Small models, not named
Energy shown per reply	Yes	No. EcoGPT says it publishes no energy, carbon or water estimates
Where your chat runs	Own model: named sites in Iceland, Norway, Finland, Ireland. Partner models: their makers’ servers, labelled	One Google Cloud site in Finland, but “other model providers in other locations also answer chats”
Clean energy	Own model on hydro, geothermal and wind; new clean energy funded to match partner models	Relies on the Finland region’s grid when that site answers
Trees	No	One tree per 100 chats (50 on Pro)
In the app	Chat, web search, images, Notebooks, Projects, Personas, memory, voice, app connections	Chat, images, quizzes, plus “a forest world that grows with your trees”, word games, puzzles and chess
Free plan	Unlimited AI chat	Up to 60 messages a day without an account, 500 with one
Ads on free plan	A small sponsored card in some chats	Ads between chats
Ad-free plan	$4.99 a month	$10 a month (Pro)

Details checked November 2026. Prices are US prices.

Small models: cheaper to run, worse at answering

EcoGPT’s main green argument is that its models are small, about ten times fewer active parameters than the big providers’, so each answer uses less computing. That part is true. The cost lands on you.

• Smaller models know less. How much a language model knows and how well it reasons grows with its size; that relationship has been measured since the first scaling-law studies. A model a tenth the size has far less room for facts.
• They are more likely to mislead. When a small model doesn’t know, it often guesses, and a confident guess reads exactly like a fact. That matters for homework, health, money and work.
• You can’t check what you are getting. EcoGPT doesn’t name its models, so you can’t look up how they score, how current their knowledge is, or what they were trained on. Its own help pages tell you to ask it to search the web when you need up-to-date information.

Small models have their place: they are fine for a quick definition or a short rewrite. The problem is being stuck with only small models. In Viro, you can use ChatGPT, Claude and Gemini, the models people actually rely on, and switch between them mid-conversation.

Energy: named and measured vs unnamed and unpublished

Viro tells you where its own model runs: Akureyri, Blönduós and Keflavík in Iceland, Glomfjord in Norway, Helsinki in Finland, and Dublin, on hydro, geothermal and wind. That is clean by geography, not by certificates or offsets. When you choose ChatGPT, Claude or Gemini, those answers run on their makers’ servers; Viro estimates the electricity each message uses, funds new clean energy to match it, and labels those answers as energy matched rather than calling them 100% clean. Every reply shows its estimated energy. See the data centers.

EcoGPT points to one Google Cloud data center in Hamina, Finland, and quotes Google’s figure of 98% carbon-free energy for Finland in 2023. But its own environmental claims page says that “other model providers in other locations also answer chats, and which one serves a reply varies,” and that it doesn’t publish carbon, water or energy estimates. So for any given chat, you don’t know where it ran, what powered it, or how much energy it used.

Trees don’t touch the problem

EcoGPT’s App Store subtitle is “Chat to plant trees.” The trees are real: they are planted through the charity Trees for the Future, which does good agroforestry work with farmers in East Africa. But planting trees does nothing about AI’s environmental problem.

• AI’s footprint is electricity, now. Every message is computed in a data center the moment you send it. A tree planted in Kenya doesn’t change what that data center runs on.
• Trees are slow and uncertain. Forests take decades to absorb most of their carbon, and many seedlings don’t survive. Reporting on EcoGPT cites survival rates of roughly 36% to 75% in East African projects.
• A tree count isn’t a carbon number. EcoGPT doesn’t claim its trees offset its emissions, and publishes no emissions figures to compare them against.

There is also an odd incentive. Trees are earned by chatting: more messages, more trees, and a forest in the app that grows the more you use it. That rewards using more AI, which means using more electricity.

Viro takes the opposite approach: run on clean power at the source, show the energy behind every reply, and put profits into new wind and solar that replace fossil power rather than compensate for it, alongside The Ocean Cleanup.

Which should you choose?

Choose EcoGPT if you mainly want a light, game-like app for simple questions and you like seeing a tree counter go up.

Choose Viro AI if you want ChatGPT, Claude and Gemini in one free app without daily caps, a cheaper ad-free plan, and an AI that names its data centers, runs its own model on renewable power, and shows you the energy behind every answer.

Want the full case? Read is EcoGPT greenwashing? Or try Viro AI free.

Frequently asked questions

What is the difference between Viro AI and EcoGPT?

EcoGPT runs small models it does not name, plants trees as you chat, and publishes no energy, carbon or water figures. Viro AI gives you ChatGPT, Claude, Gemini and its own model, runs its own model in named data centers powered by hydro, geothermal and wind, shows the energy behind every reply, and funds new clean energy to match its partner models.

Which AI models does EcoGPT use?

EcoGPT does not say. It describes its models as having about ten times fewer active parameters than the big providers’ models, and says other providers in other locations also answer chats. Viro AI gives you ChatGPT, Claude and Gemini by name, plus its own model.

Is EcoGPT as good as ChatGPT?

For simple questions a small model can be fine. For harder work it usually is not: smaller models know less, are worse at reasoning, and are more likely to give a confident wrong answer. Viro AI includes ChatGPT itself, plus Claude and Gemini.

Is EcoGPT free?

EcoGPT says you can send up to 60 messages a day without an account and up to 500 with a free account, which shows ads between chats. Its Pro plan is $10 a month with no ads. Viro AI’s free plan is unlimited, and its ad-free plan is $4.99 a month.

Does planting trees make AI green?

No. AI’s footprint is the electricity used the moment you send a message. Trees take decades to absorb carbon, many seedlings don’t survive, and a tree count says nothing about the power an AI runs on. EcoGPT itself does not claim its trees offset its emissions.

Is EcoGPT greenwashing?

In our view, its eco claim rests on its name, tree counts and one data center rather than on measured energy, and it publishes no energy, carbon or water figures. We set out the evidence in a separate article, “Is EcoGPT greenwashing?”.

Sources

1. EcoGPT vs Viro, EcoGPT, read November 2026
2. Our environmental claims, EcoGPT, read November 2026
3. EcoGPT – Chat to plant trees (App Store listing), Apple App Store, read November 2026
4. EcoGPT says it plants trees for prompts: green AI or greenwashing?, ForkLog, September 2026
5. Scaling Laws for Neural Language Models, Kaplan et al., OpenAI, 2020
6. Viro data centers, Viro AI

Cover photo by Huynh Linh on Unsplash