> The only minor problems I've had is Gemini went through a phase where it was using semi-colons improperly in if statements, which is something everybody messes up with Pascal, so forgivable, I'm sure if I was using an agent rather than the web interface it would have figured it out from compiler errors right away.

Thank heavens, I wasn't the only person who's seen that. I thought I was the one hallucinating! The Gemini agent did that for a bit, too.

Generally, for Free Pascal and Lazarus, I have had my best luck scaffolding the ideas I want, then letting the agent move forward with them. But yes, the main frontier models are getting pretty good at Pascal. I'm planning to try DeepSeek and a lot of open models soon, but I think they'll return good results too.