It’s almost frightening what ChatGPT can produce, but can we trust it? Yesterday I typed in a few questions as I was getting confused over using Mae or Dyna and how to express statements and questions such as ‘is this…’ and ‘this is…’ and ‘that is..’ etc, etc.
It created a set of revision notes and two minutes later, the attached charts.
So my question is … Are they correct?
ChatGPT Image Jul 8, 2026, 10_02_37 PM.png.pdf (2.6 MB)
ChatGPT Image Jul 8, 2026, 10_27_21 PM.png.pdf (2.1 MB)
None of the machine translation or genAI platforms are trustworthy. They may get some things right, but they’ll frequently get stuff very wrong, and unless you know enough Welsh to spot the errors, you may well end up learning stuff that’s incorrect.
Short answer: no.
The problem is that generative AI can make errors and will make errors, and unless you know the subject matter well enough to the point that you could give the answer yourself, you won’t be able to tell the difference. So you’ll do what you did anyway: ask someone to double-check the “work” of the AI.
That said, the files are mostly okay, but there are a few things in the first file that bear correcting:
Statements about the weather are always hi, or in colloquial speech you could omit the personal pronoun:
Mae hi’n braf. / Mae’n braf
Mae e’n oer means “HE is cold”
In section 5, over on the “dyna” side, one of the examples wrongly uses “dyma”.
Another inconsistency is down at the bottom. The example says “Mae hon yn hardd”, which is the female form, but the picture shows a car, which is masculine. So it should have been “Mae hwn yn hardd.”
The second file looks to be correct. But all of this is beside the main point: we are here to help. Next time, please just ask us without asking ChatGPT first.
Thanks. I definitely do not trust generative AI !!
I was more interested in its accuracy and speed, rather than using it - and I’m quite pleased that I spotted the car inconsistency too!
As a professional writer, I’m not exactly a fan of AI, but I do recognise that the quality of what you get out is directly related to the quality of what you put in. So, to be (grudgingly) fair, if you input the correct source material, it can quickly create well-designed revision notes and charts.
P.S. Funny AI-related incident the other day here in Pembs, when I met some sad-looking surfers at Angle Bay who’d been directed there by ChatGPT only to find a pan-flat sea and what is possibly the most sheltered beach in the far west.