Tokenprint
A tool and a position, from Web Experts

Why would a tech company publish a tool about AI's cost to the environment?

Because we are not a normal tech company, and this is not a normal AI environmental calculator (see how it compares). Web Experts builds and advocates for open-source, low-power, and offline AI. It is far friendlier to the planet, and for most real work it is more than good enough. We are an environmentally conscious, ethical AI development team.

The biggest model is rarely the right one.

Free, and no email required. We built this so you can see what your AI habit actually costs, with no signup and no catch. If it helps, the best thing you can do is share it.

See what it costs ↓
01 · Estimate

Measure your footprint

Choose what you know. TokenPrint handles the technical assumptions for you, and Expanded View is available whenever you want more control.

Hover, focus, or tap a question mark for a plain-language explanation.

Quick estimate

Start with what you know

Pick the kind of AI use and a rough amount. We will handle the model, hardware, and U.S. power-grid assumptions.

1. What did you use?

Use the token total from your provider when it is available.

2. About how much?
How are these examples estimated?

tokens
What this estimate assumes A standard current model with medium reasoning effort, NVIDIA data-center chips, typical efficiency, the U.S. average grid, and, for text, an estimated training share spread across 100 million users over six months.
Sample reading. Enter your numbers and press Calculate to make it yours.
Energy
·Wh
range ·
Electricity to run the chips, plus data-center overhead.1
Carbon (CO₂e)
·g
Grid electricity
·
Hardware manufacturing
·
range ·
Depends on how clean the power grid is, plus the amortized carbon of building the hardware.6
Water
·mL
Cooling only
·
Incl. power generation
·
Two scopes shown because sources measure different boundaries.4
In everyday terms (central estimate)
Energy is like…
Where does the energy actually go?

Almost all of it turns into heat, almost immediately.

  • The chips do math and give off heat. Each token is billions of calculations on a GPU. Nearly 100% of the electricity a chip draws becomes heat within seconds, which is exactly why a data center needs so much cooling.
  • Overhead adds more. Cooling, power conversion, and networking mean the building pulls more than the chips alone, roughly 10 to 30% on top (the PUE factor).
  • It does not come back. Unlike water, spent electricity dissipates as low-grade heat into the environment; there is nothing to recover. The only levers are using less (a smaller model, an efficient chip) or drawing from cleaner power.
Carbon is like…
Where does the carbon come from?

Not from the data center itself, but from making the electricity it uses.

  • It is released at the power plant. The building emits little directly. The CO₂ comes from wherever the power is generated: a lot on coal or gas, close to nothing on hydro, nuclear, or solar.
  • It goes into the air and stays. CO₂ released today lingers in the atmosphere for centuries, trapping heat the whole time. That is why it is counted as a lasting footprint.
  • The grid decides almost everything. Across EPA's 2023 U.S. eGRID subregions, generation emissions vary by more than sixfold. Some providers offset with renewable purchases, which is part of why reported numbers vary so much.

The "trees to absorb it" figure reflects that forests pull CO₂ back out slowly, over years.

Water is like…
Where does the water actually go?

It is not destroyed, but most of it leaves, which is why it counts as "consumed" rather than just used.

  • Most of it evaporates. Data centers usually cool with evaporative towers: water is trickled over hot surfaces and a portion turns to vapor, carrying the heat away. That vapor drifts off and falls as rain elsewhere, so from the local town's supply it is simply gone. In a dry region that often means treated drinking water going up into the sky.
  • Some is drained as wastewater. As water evaporates, minerals concentrate in what is left. To stop scaling, the plant periodically dumps that salty, chemically treated water (they add anti-scaling agents and biocides) to the sewer, where it needs treatment.
  • The hidden half is at the power plant. The electricity itself is often made by boiling water into steam and evaporating more water to cool it back down. That is the "including power generation" figure above, and it is usually the larger share.

So a little returns as dirty water and the rest evaporates into the atmosphere. It rejoins the global water cycle, but it is taken out of the local supply, which is what matters in a drought. Closed-loop and air-cooled designs use far less water, but usually trade that for more electricity.

Central estimate with the selected model-training share and hardware manufacturing included. Carbon uses EPA's U.S. national factor by default, or pick your eGRID subregion. Ranges reflect model, hardware, training, and data-center uncertainty.
02 · Look it up How to find your usage in each app Developer APIs usually provide the clearest counts.

Developer APIs usually provide the clearest counts. Consumer apps may show message, plan, credit, or context limits instead. Image products also vary: some use image tokens, while others report credits, images, or GPU time.

AppShows tokens?What it reportsWhere to look
📣

Notice how many apps hide this?

You have a right to know what your AI use actually costs. If a platform will not show you your token usage or its energy and water footprint, ask them to. The more people request it, the sooner transparency becomes the norm. Tell your providers that showing this should be standard, not optional.

03 · Show your work Methodology and the numbers we use See the assumptions, ranges, comparisons, and primary sources behind the calculator.

Every constant below is editable in spirit. We start with mid-range inference estimates, show the documented spread, and separately add the selected share of model training. Figures compiled from the cited sources on August 9, 2026; AI efficiency is improving quickly, so expect these to change over time.

How the model-training share is estimated

The default is a conservative estimate, not a known model-specific audience. TokenPrint spreads training compute across 100 million active users over six months. That audience is intentionally below the whole-platform figures providers have published. OpenAI reported more than 500 million active users and 2.5 billion messages per day in July 2025. Google reported 950 million monthly active Gemini app users in Q2 2026. Neither figure tells us how many people used one particular model generation, so Expanded View lets visitors choose 5 million, 25 million, 100 million, 1 billion, or inference only.

Why the default uses six months: we compared the time between four named model generations using provider release dates.

Those intervals average 204.5 days, about 6.7 months, and have a median of 184 days, about six months. TokenPrint uses the six-month median as its default. These intervals measure the arrival of a named successor, not when an older model was retired.

How the share is calculated: the selected model's training-token estimate is converted to compute, then divided across the chosen audience, generation window, five messages per person per day, and about 900 tokens per message. The five-message assumption comes from OpenAI's published ratio of 2.5 billion daily messages to more than 500 million users. The 900-token message size is an editable calculator assumption, not a provider-reported average. The resulting training factor is applied to the visitor's usage and shown separately from inference.

Energy and images

ConstantLowDefaultHigh
Text, per 1k tokens (by model)0.10.634
Image, per image (Wh)0.52.911.5
Data-center PUE 1.11.151.3

Water and carbon

ConstantLowDefaultHigh
Cooling water (mL/Wh)0.91.11.8
Total water (mL/Wh)3360167
Grid (g CO₂e/kWh)40350650
Grid, eGRID subregions (g CO₂e/kWh)110350680
Embodied hardware (g CO₂e/kWh)16.418.943.6

Everyday-comparison factors

EquivalentFactorEquivalentFactor
Phone charge11 WhWeb search0.2 g CO₂
LED bulb10 WCar (petrol)170 g CO₂/km
Kettle boil110 WhMature tree21 kg CO₂/yr
Average home30 kWh/dayNYC–London flight~1 t CO₂
Fridge1.3 kWh/dayBeef60 kg CO₂/kg
Water bottle500 mL10-min shower62 L
The "trees" figure is the honest version of the forest metaphor: how many mature trees, working a full year, would absorb this much CO₂, not "forests destroyed," which isn't a real conversion.

Inference and training are shown separately. The figures begin with per-use inference and add the amortized training share you select. Expanded View lets you adjust that assumption or exclude it.

How many tokens were used to train these models?

Training-token scale is separate from your usage. It describes how much material a developer processed while building a model. TokenPrint uses this scale to estimate and separately display your amortized share of model development.

Models in this calculatorTraining tokensConfidence
GPT-5.6 Luna, Terra and SolNot disclosed. Estimated at roughly 10T to 50T+Estimate
Claude Haiku, Sonnet 5 and Opus 5Not disclosed. Estimated at roughly 10T to 50T+Estimate
Gemini 3.6 Flash and Gemini 3.1 ProNot disclosed. Estimated at roughly 10T to 50T+Estimate
Grok 4Not disclosed. Estimated at roughly 10T to 50T+Estimate
DeepSeek V4-FlashNot disclosed. Estimated at roughly 15T to 25T, anchored to V3's published 14.8TEstimate
Llama 4More than 30T across text, image and video dataPublished
Qwen3About 36TPublished
Kimi K215.5TPublished
Ollama Cloud and local modelsModel-dependent, commonly about 2T to 36T+Varies

How to read this: T means trillion training tokens. Closed-model estimates are broad Web Experts ranges based on the scale of documented contemporary open models, not vendor disclosures. Training data may be repeated across epochs, and multimodal developers count image, audio and video tokens differently. The amortization control uses the common approximation that training takes about three times as much compute per token as inference. Published sources: Meta Llama 4, Qwen3, DeepSeek-V3, Kimi K2, and Epoch AI's training and inference analysis. Disclosure references: OpenAI, Anthropic, Google DeepMind, and xAI.

Model choice dominates energy. Reasoning models and settings can use substantially more compute than a small model for the same visible answer. The difference varies by model, task, and reasoning effort.

Water is the most contested metric. The "cooling only" and "including power generation" numbers aren't contradictory, they draw the system boundary in different places. We show both.

The grid decides the carbon. The computation's energy does not change with location, but its emissions do. We use EPA's national eGRID factor as the U.S. default and keep clean and coal-heavy scenarios to show location sensitivity.

The model matters more than the chip. Switching to efficient silicon (Groq, TPU, Cerebras) is a real but modest ~1.5–3× win; the "10–35×" vendor claims compare against badly-run GPUs. The bigger lever is architecture, an efficient open MoE model can be 5–15× lighter per token.

Building the hardware counts too. Manufacturing carbon is added as a separate line at 18.9 g CO₂e per kWh, derived from a published life-cycle assessment of a real H100 partition. On a clean grid it is nearly half the total. Embodied water and minerals are still unmodeled.

Primary sources

How the hardware-manufacturing share is estimated

Building the hardware has a carbon cost, and almost no AI calculator counts it. Tokenprint adds it as a separate line, at 18.9 g CO₂e per kWh of data-center electricity. That figure is not a guess. It is taken from a published bottom-up life-cycle assessment of an actual NVIDIA H100 partition, the Jean Zay supercomputer at CNRS/IDRIS: 194.2 tonnes CO₂e per year of annualized manufacturing emissions across compute, storage, power chain, cooling, refrigerant and diesel, divided by the 10,299 MWh per year that partition draws, PUE included.

The range reflects how long the hardware lasts and how hard it is worked. The low figure of 16.4 amortizes compute over 15 years. The high figure of 43.6 assumes a 4-year refresh cycle at 60% utilization, closer to commercial cloud practice than to a national research facility. The published study amortizes compute over 10 years at 88% utilization.

Why it matters more than it looks. In that study, manufacturing and operations came out at 46% and 54% of the annual footprint, nearly even, because the French grid is unusually clean at 21.7 g CO₂e/kWh. On a dirty grid, electricity dominates and embodied carbon is a rounding error. On a clean grid, or as grids decarbonize, the hardware itself becomes the larger half. That is the case for showing both numbers separately rather than folding them into one.

What this does not include: embodied water, mineral depletion, end-of-life, the data-center building itself, networking beyond the partition, or your own device. Those are real and unmodeled. This line covers manufacturing carbon only.

  1. Epoch AI (2025), How much energy does ChatGPT use?, epoch.ai
  2. Jegham et al. (2025), How Hungry is AI? arXiv 2505.09598, arxiv.org
  3. Google (2025), Environmental impact of AI at Google scale, arXiv 2508.15734, arxiv.org
  4. Li, Ren et al. (2023/2025), Making AI Less Thirsty, arXiv 2304.03271 / CACM, arxiv.org
  5. Luccioni, Jernite & Strubell (2023), Power Hungry Processing, arXiv 2311.16863, arxiv.org
  6. Ember Global Electricity Review 2024, ember-energy.org
  7. Our World in Data, carbon intensity of electricity, ourworldindata.org
  8. U.S. EPA, eGRID 2023 Summary Data, epa.gov
  9. U.S. EIA, United States Electricity Profile 2024, eia.gov
  10. OpenAI, Counting tokens, developers.openai.com
  11. OpenAI, GPT Image 1.5 model, developers.openai.com
  12. OpenAI, Developer commands, learn.chatgpt.com
  13. Vanderbauwhede et al. (2026), Life Cycle Assessment of Pre-training the Lucie 7B Open-Source Large Language Model on the Jean Zay Supercomputer. Source of the embodied-carbon intensity: 194.2 tCO₂e/yr annualized manufacturing over 10,299 MWh/yr, and 36.7 g CO₂e per H100 GPU-hour LCA-inclusive.
  14. US EPA (2025), eGRID2023 Summary Tables, Table 1. Source of the U.S. national factor and all 27 subregion CO₂e output emission rates, converted from lb/MWh at 453.59237 g/lb.
04 · How this compares What makes this one of the most comprehensive AI environmental calculators A side-by-side with every other public AI footprint calculator we could find, including where they beat us.

Comprehensive here means scope, not polish: how many of the real costs a calculator is willing to count, how honestly it handles what nobody knows, and whether it helps you find your actual usage instead of guessing. We checked every public AI footprint calculator we could find in August 2026. Here is where Tokenprint sits, including the places where other tools are ahead of us.

What it counts Tokenprint EcoLogits Masley AI Impact Calc. Omni HF Energy Score
Energy Yes Yes Yes Yes Yes Measured
Carbon Yes Yes Yes Yes No No
Water Two scopes No Yes Yes Yes No
Uncertainty ranges on all three Yes Point estimates Partial Partial No n/a
Model-training share, amortized per user Yes, editable Excluded Excluded Mentioned No No
Embodied hardware carbon Yes Yes Yes Flat toggle No No
Regional grid resolution 27 eGRID subregions One world factor Country presets 5 presets No n/a
Shows you how to find your real usage 10 apps No No No No No
Second language Spanish No No No No No

Only calculator that counts training. Building a model has a carbon cost, and your share of it is real. EcoLogits and Masley both exclude training outright as too uncertain to model. We include it, show the arithmetic, and let you set the audience and the generation lifespan yourself, or switch it off entirely.

Only calculator that teaches you your own number. Every other tool asks you to guess how many prompts you send. We list where the real count lives in ten different apps, from Claude Code and the OpenAI API to Midjourney and local Stable Diffusion, and we say plainly which ones hide it from you.

Only calculator that ranges everything. Energy, carbon, and water each carry a low, central, and high figure, because the honest answer to "what does a prompt cost" is a spread, not a number. A tool that gives you one confident digit is hiding the disagreement in the research.

Where other tools are ahead of us, and we are not going to pretend otherwise. Hugging Face's AI Energy Score does not estimate at all, it physically measures 166 models on standardized H100 hardware. That is a laboratory, and it is better evidence than any formula. EcoLogits reports impact categories we do not, including mineral depletion and primary energy, and models per-model parameter counts where we use eight model tiers. If you need a measured figure for one specific model, go to them. This tool is built for the person trying to understand their own total across everything they use.

So the claim we will actually defend: this is the most comprehensive consumer-facing AI footprint calculator we know of. It is the only one that reports energy, carbon, and water with uncertainty on all three, counts both the training and the manufacturing nobody else counts, resolves carbon to your own grid region, and then shows you how to find your real usage, in two languages, free, with no email. Comparison current as of 10 August 2026. If you know of one we missed, tell us and we will add it, including if it beats us.

05 · Our approach

How we build, and why

First, we are coders.

We have been hand coding websites and custom software for a long time. We fought the templatization of our industry. We have always bucked trends that other web companies followed. Real designers, real code, no outsourcing, and no shortcuts. We are about ethics, relationships, and results. We believe you can build great things and still be environmentally conscious.

Open source

Efficient open models (DeepSeek V4, Llama 4, Qwen3, Kimi K2) are transparent, ownable, and cheap to run, in dollars and in energy.

Low power

A right-sized model on efficient hardware can do the same job for a fraction of the energy, water, and carbon of a frontier model.

Offline first

Models that run on your own machine keep your data private, work without a connection, and draw only the power already in the room.

Thinking about AI for your office, app, or workflow?

We help teams put the right-sized AI in the right place, the efficient way. If that is something you want to explore, we would be glad to talk it through.

Get in touch