Ted Mao

Builder, Advisor, Investor. Twitter lurker.

[Ted Mao @ternarybits]

Earlier this year, I started working on a side project called Gumnut, around the theme of photo intelligence. I've kept my work quiet, but today I decided to finally post an article about it: https://t.co/nvxbqwSV6U

[Ted Mao @ternarybits]

Have you ever wondered how photo apps identify faces in photos and associate them with people? Here's how I do it in Gumnut! 

https://t.co/48kyDy7A51

[Ted Mao @ternarybits]

Added translations to my candidate matcher app:

Note that I can't actually read any of these translations to verify accuracy. Blame @claudeai (or send me feedback) if you don't like the translations.

[Ted Mao @ternarybits]

My favorite part is that unlike most survey apps, you can dig deeper on any question by asking Claude or ChatGPT �� or any other AI agent you prefer. Hope this is helpful for some of you, and let me know what you think!

[Ted Mao @ternarybits]

Like many Californians, I haven’t been paying close attention to the differences between the candidates in California’s incredibly crowded gubernatorial primary, so last week I took a day to build an app to help people decide which candidate to vote for: https://t.co/8gGgcZKRhH

[Ted Mao @ternarybits]

As you might expect, the research is fully AI-driven. It’s much more comprehensive than any research I could have done manually, and every reference is fully cited with primary sources.

[Ted Mao @ternarybits]

I’m not sure if the issue is that it failed to store the file, if it never stored it at all and is just hallucinating a filesystem path, or something else. My MCP also returns the same file at a public URL, but ChatGPT can’t seem to fetch the file from that URL either.

[Ted Mao @ternarybits]

Perhaps @OpenAIDevs might know?

TL;DR: It doesn’t look like file handling works in Developer Mode.

[Ted Mao @ternarybits]

In fact, it looks like ChatGPT isn't actually able to download the photo and use it. Perhaps a bug? @OpenAI

[Ted Mao @ternarybits]

When a tool call to my MCP server returns a file, ChatGPT thinks that it’s stored the file at the local path and tries to access it there, but fails.

[Ted Mao @ternarybits]

@OpenAI Note that the tool that ChatGPT is attempting to use to download the asset is the correct one, and it works. (See MCP Inspector screenshot below.). But it looks like something is breaking down in the process of storing the file and then accessing it again.

[Ted Mao @ternarybits]

I was super excited to see that OpenAI launched Developer Mode (https://t.co/2DrHV4Vl5a) today — so I went go to try it with Gumnut.

[Ted Mao @ternarybits]

In fact, it looks like ChatGPT isn't actually able to download the photo and use it. Perhaps a bug? @OpenAI

[Ted Mao @ternarybits]

It can still do quite a bit with just the photo metadata, though. E.g.

[Ted Mao @ternarybits]

If you’re interested trying out the platform or hearing more about what I’ve built, let me know!

[Ted Mao @ternarybits]

Earlier this year, I started working on a side project called Gumnut, around the theme of photo intelligence. I've kept my work quiet, but today I decided to finally post an article about it: https://t.co/nvxbqwSV6U

[Ted Mao @ternarybits]

I wrote a longer post about it here: https://t.co/nvxbqwSV6U