Fitness Goal Reality Checker

How Fitness Goal Reality Checker works

Press Load model once: your browser downloads Gemma 3 1B instruction-tuned (web build) (728 MB) from this site and keeps it in its cache. Then add your text and press Check locally. The model runs on this device using your graphics card, so nothing you enter is sent to a server. Until the model is loaded, or if your device cannot run it, the tool falls back to a simple keyword check and labels the result as the fallback.

Gemma 3 1B instruction-tuned (web build) is a small open language model from Google. The tool sends it the instruction below plus your text, asks for a JSON answer with fixed fields, and shows each field as a card. It runs at temperature 0, so the same input gives the same answer on the same device, though different graphics cards can word it slightly differently.

Inputs longer than 6,000 characters are cut to that length before they reach the model, and the result says so. The model only sees what you paste: it does not look anything up.

The instruction also carries one worked example: the built-in sample with the answer the larger Gemma 4 E2B model gave for it. That example is what lets this smaller model follow the answer format reliably.

The instruction the model gets

You read a person's fitness goal note and lay out what they are aiming for, so they can check whether the goals fit together. List each goal with its timeframe exactly as written, point out where goals or habits in the note pull against each other for the same time, energy or recovery, and list questions they should answer before committing. You do not diagnose, do not name possible conditions, do not give medical advice, and never change, add or suggest medication doses. You only organise and reflect what the user wrote, in their own words where possible. Do not calculate anything; copy numbers exactly as written. Do not judge whether a weight or performance target is safe or set a pace; where a goal involves rapid weight change or a medical condition, say a doctor or qualified coach should help set the pace.

What it returns

• Goals and timeframes: One entry per goal, as 'goal (timeframe as written)'. Leave out the timeframe if none is given.
• Where goals compete: Places where two goals, or a goal and a habit in the note, compete for the same time, energy or recovery. Quote the parts of the note involved.
• Current habits mentioned: Habits the note describes now (training days, eating, sleep), as written.
• Questions to answer first: Short questions the person could answer to make the plan clearer, based on what the note leaves out.

Worked example

The model's output for the built-in sample, recorded on a desktop browser. Your run may word things slightly differently.

Goal note: I want to lose 25 pounds in 6 weeks, train for a half marathon, lift four days a week, and keep eating takeout most nights.

Goals and timeframes

lose 25 pounds in 6 weeks train for a half marathon lift four days a week

Where goals compete

lose 25 pounds in 6 weeks keep eating takeout most nights

Current habits mentioned

keep eating takeout most nights

Questions to answer first

How will eating takeout most nights support the goal to lose 25 pounds in 6 weeks? How will training for a half marathon fit with lifting four days a week? What is the current sleep schedule?

The model

The files are served from this site, versioned so a cached copy is never stale. Nothing is fetched from a third party while you use the tool.

You can switch models in the tool. Also available: Gemma 4 E2B instruction-tuned (web build) (2.0 GB). The larger language model gives more thorough answers but is a bigger download and needs a stronger device.

Gemma is provided under and subject to the Gemma Terms of Use found at ai.google.dev/gemma/terms.

Limitations

• Small language models make mistakes: they can miss an item, merge two, or state something more confidently than the text supports. Check the result against your input before you rely on it.
• It needs WebGPU and about 4 GB of memory, so it is offered on desktops and laptops, not on phones and tablets. Devices that cannot run it get the keyword fallback, clearly labelled.
• Results describe the input you gave, not the real-world situation behind it. Review them yourself before acting.
• This is not a medical device and does not give medical advice, a diagnosis or a treatment plan. Ask a qualified health professional about any symptom, medication or change to your routine.

Good uses

• Triage health and wellness notes before deeper review
• Prepare consistent labels for repeat workflows
• Reduce manual sorting on small batches
• Keep sensitive drafts in the browser preview