metri
In ChatGPT, a photo of a customized latte is logged with metri as 210 kcal, and the metri card updates to 1,640 of 2,200 kcal for the day.

Track calories right in ChatGPT or Claude

Use the smartest AI to track precisely what you eat

Install metri

Works even on free ChatGPT and Claude plans

when tracking gets complicated, metri gets especially useful
In Claude, photos of a homemade wok and its noodle packaging are broken down into ingredients, a third of the pan is logged with metri, and the metri card updates to 1,760 of 2,400 kcal for the day.
metri remembers your history
In ChatGPT, metri answers for today with 1,640 of 2,200 kcal, then for the day before with 1,868, and opens Monday's full breakdown: overnight oats with banana, a turkey club sandwich, a protein shake, and steak with potatoes and salad.
coming soon: an iOS companion app with a widget
An iPhone home screen where the metri widget shows 1,180 of 2,000 kcal, then updates to 1,500 as an afternoon snack is logged.

Why metri

Better than basic ChatGPT or Claude

metri gives your AI a database. Logs saved and synced across chats and assistants. App and web coming soon

Better than other AI calorie apps

They only look at a photo. metri takes any context: grams, brands, pack photos, recipe links, delivery-app screenshots. It looks online for what’s missing. Vibe-track from a photo or count every gram. metri is the right interface for it

The best framework to count calories

metri guides AI to break a dish into ingredients and estimate their weights. You see what it logged and fix what's off

Backed by science

Recent studies (e.g., [1]Vision-Language Models for Image-Based Dietary Assessment, [2]Image-Based Dietary Energy and Macronutrients Estimation with ChatGPT-5) show that modern LLMs like GPT-5 estimate calories with an error of 13.9%–24.4%, depending on how much context you give them. Researchers call that reasonable accuracy — on par with weighing every ingredient on a scale

Use the smartest model you already pay for

Other AI calorie trackers give you a nerfed AI. But you already use the best models from OpenAI and Anthropic. Give them any complex context, and they’ll work it out

Text, voice, or a photo

metri is triggered automatically when you send a photo of food or imply you had a meal — no extra steps needed

Build your own food base

metri searches history, reuses logged foods, saves meals you cook once but eat over several portions — without a cumbersome interface

Always up to date

We don’t use nutrition databases — they're inaccurate anyway (e.g., calories per portion but no portion weight). metri estimates nutrients every time from the ground up

Pricing

$3/month + taxes

Install metri

Payments managed by Stripe

  • Works with free ChatGPT and Claude plans
  • Unlimited usage
  • Unlimited devices and assistants
  • Your data is stored for free even if you stop subscription

Connect metri to your AI assistant

Add metri with its MCP server URL

Use the remote MCP server URL to add metri to any compatible AI assistant or MCP client.

Server URL

  1. Copy the MCP server URL

    Use the copy button above to copy the metri server URL.

  2. Add it to your MCP client

    Follow your client's instructions to add a new remote MCP server using the copied URL.

  3. Sign in to metri

    Follow the prompt to sign in or create a metri account and connect your diary.

  4. Start tracking

    You can now log meals and check your nutrition directly from your AI assistant.