Ask HN: Is ChatGPT down?

1. Larger Context Window (128K)

With Pro-Mode, I can paste an entire firmware file—thousands of lines of code—along with detailed hardware references, and the model can actually process it. This isn’t possible with the smaller context window on the $20 tier. On the Pro plan, I’ve pasted like 30+ pages of MCU datasheet information plus multiple header files in a single go. The model is then reasonably capable to provide accurate, bit-twiddled code, many times on the first try. Is it always working on the first go? Sure sometimes, but often there's still debugging, and I don't expect people that haven't actually tried to do it before without AI could do it effectively. However, I can do a code diff using tools like beyond compare (necessary for this workflow) to find bugs and/or explain what happened to pro-mode perhaps with some top level nudge for a strategy to fix it, and generally 2-3 tries later we've made progress.

2. Deeper understanding, real solutions

When I describe a complex hardware/software setup—like the power optimization for the product which is a LiPo-rechargeable fan/flashlight, the Pro-Mode model can understand the entire system better and synthesize troubleshooting approaches into a near-finished solution, with 95–100% usable results. By contrast, the non-pro plan can give good suggestions in smaller chunks, but it can’t grasp the entire system context due to its limited memory.

3. Practical Engineering Impact

I’m working on essentially the fourth generation of a LiPo-battery hardware product. Since upgrading, the Pro-Mode model helped us pinpoint power issues and cut standby battery drain from 20 days to over a year. Like, this week it guided me to discover a stealth 800 µA draw from the fan itself when the device was supposed to be in deep sleep. We were consuming ~1000 µA of power when it should be about ~200 µA. Finally, discovered the fan issue and achieved 190 µA without it in the system, so now we have a move forward to add a load switch so the MCU can isolate it from the system before it sleeps. Bingo we just went from a dead battery in ~70 days (we'd already cut it from 20 days to 70 days with firmware changes alone) to now it should take about 1 year for it to drain. This is the difference between end users having zero charge when the open the box to being able to use the product immediately.

4. Value vs. Traditional Consulting

I’ve hired $20K short-term consultants who didn’t deliver half the insights I’ve gotten in a single subscription month. It might sound like an overstatement, but Pro-Mode has been the best $200 I’ve spent—especially given how quickly it has helped resolve engineering hurdles.

In short: Probably the biggest advantage is the vastly higher context window, which allows the model to handle large, interrelated hardware/software details all at once. If you work on complex firmware or detailed electronics designs, Pro-Mode can feel like an invaluable engineering partner.