For indie hackers.

Premium models at scale will kill your margins.

You built something real. The AI costs made sense in development. Now you're looking at your usage bill and doing the math on what happens at 1,000 users.

The hardest part of shipping an AI product isn't building it. It's discovering — after launch — that your per-user cost makes the business model impossible.

Survive scale without burning cash.

Cost Simulator — Eco mode

Find the cheapest model that still does the job. Eco mode surfaces the best budget option for your workflow — often 70–90% cheaper than flagship models with acceptable tradeoffs documented.

Try Eco mode →

Optimization Engine

Identifies which steps in your workflow are overpaying for the model they're using. Get specific recommendations: downgrade this step to GPT-5.4 Mini, cache that one, parallelize these two.

See optimizations →

Croms™ Scoring

Your Croms score is the number that tells you how much waste your workflow carries. Lower is better. Every recommendation shows exactly how many Croms it eliminates.

What are Croms™? →

Reality Check Loop

Log what your workflows actually cost in production. Cromus compares predicted vs. actual and tightens future estimates — so your cost model improves every week.

Learn about the loop →

Every dollar of waste has a name.

Cromus calls them Croms — units of preventable AI workflow waste. Run a free audit on your workflow and get a Croms score that tells you exactly where the leakage is and what fixing it is worth.

What are Croms?

Build lean. Ship fast.

Don't get killed by your API bill.

Free to start. No credit card required.

Cromus.ai · The AI department you don't have to hire