“Yeah, we, so we use an ensemble approach. So we've got different aspects of the models and we've obviously been playing with large language models to see if we can improve on that process. So some of this is like, how do you make predictions? And you can use large language models to do some of that work. You can have them make some predictions for you about what might a good test look like and so on. So we do use a number of different techniques. It's not purely all about reinforcement learning”
quote is from the automated transcript, cleaned for reading:
filler sounds and stutters are removed, nothing is rephrased. names can be misheard
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More from Mathew Lodge
Opinion
Mathew Lodge argues prompt engineering is a fallacy and merely trial-and-error
“And so the idea that there's something called prompt engineering, engineering in the sense of you're applying an approach because it's going to give you the output that you desire. Is a complete fallacy. At best it's trial and error. It's prompt trial and erro…”
Mathew LodgeOct 25, 2023▶ 34:49Diffblue’s AI Testing Paradigm Shift — CEO Mathew Lodge Explains How Code Writes Itself
PredictionNot checkable as stated
Lodge: Open-source AI will ultimately defeat proprietary models
“I think so. I think because it allows that level of innovation I just talked about, and I think also it gives people the ability to specialize these models to a particular task.”
Mathew LodgeOct 25, 2023▶ 38:42Diffblue’s AI Testing Paradigm Shift — CEO Mathew Lodge Explains How Code Writes Itself
AssertionNot checkable as stated
Diffblue generated 3,100 unit tests in eight hours for a bank
“You know, for one of the banks, they had an application. We wrote like 3100 tests in about eight hours. Now they estimated that that's like a year's work for a single developer, 3000 tests. And we can do that in eight hours.”
Mathew LodgeOct 25, 2023▶ 21:33Diffblue’s AI Testing Paradigm Shift — CEO Mathew Lodge Explains How Code Writes Itself
AssertionPartly supported
Private equity mainframe software acquisitions and price hikes drove companies to Java
“Because PE companies bought all of those software products and raised the price.”
Mathew LodgeOct 25, 2023▶ 25:19Diffblue’s AI Testing Paradigm Shift — CEO Mathew Lodge Explains How Code Writes Itself
Insight
Interactive AI code suggestions are strictly bottlenecked by human review speed
“You could really still only go as fast as a human can go, because a human has to review that, decide whether it's useful or not, if it is useful, make it, fit it into the code and finish the work. You're still basically going at the speed of a human, whereas w…”
Mathew LodgeOct 25, 2023▶ 32:44Diffblue’s AI Testing Paradigm Shift — CEO Mathew Lodge Explains How Code Writes Itself
AssertionNot checkable as stated
Diffblue generates unit tests in 1.5 seconds versus 40 seconds for LLMs
“We built a version of our product where we use the large language model to generate all the tests. So we took our reinforcement lending engine out and put in large language model, and we did a lot of work on prompts and so on. And you know, our product will wr…”
Mathew LodgeOct 25, 2023▶ 36:13Diffblue’s AI Testing Paradigm Shift — CEO Mathew Lodge Explains How Code Writes Itself
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