I spent about five hours using Claude Code heavily yesterday to upgrade and enhance a four year old React web app. This app is widely used to reference anatomical nomenclature.

I was able to internationalize it for 45 major languages across the world (still subject to human testing). That allows it to be accessible for 85-90% of the world's population.

It cost me about $50. It saved me months of work on a "labor of love" project and allowed me to add lots of quality of life features in a single day that I just never would have gotten to otherwise.

That's an enormous value for me.

I'm building a startup. Saving hours for singular dollars is incredibly valuable.

A session in the parent comment is like building a set of changes that would usually take a few hours (but instead takes like 30 minutes of using Claude Code (reviewing, prompting etc) and 30 minutes of cleaning up).

A few hours also being what it would have taken using some combination of building it entirely myself and/or copy/pasting with Claude where it would save time.

On average I've been spending $25 a day on Claude credits once this was up and fully running. That is cheaper than hiring another developer in just about any country and it greatly boosts my productivity.

If you use threads / chains of messages in any form, I strongly encourage you to checkout caching. The cost savings are crazy. ($0.05 / cache read 1M tokens instead of $3 / 1M input tokens)

Okay I have token caching annd token costing implemented in a PR. Will go live tomorrow. Thanks for the suggestion!

Isn't it much cheaper to just use CoPilot with GPT-o?

Claude I find is significantly better at coding that OpenAI tech, especially in agentic tool using workflows.