A useful discovery (at least I think so ) :)
If you build Custom GPTs that you need to embed on your website (or monetize), I tested a lot of different systems for doing that this week. It was an interesting experience, especially when fighting with AI's that insisted on changing my custom instructions over and over! In case it's of use to others, the one that works so much better then the others for me is Pickaxe. It is extremely customizable, doesn't require APIs, lets you use any of the latest GPT models, builds unlimited chatbots, forms and apps, connects to other apps (Zapier, Make, Flux, ElevenLabs, and many others, and also MCPs). Pickaxes, and their connections, can be chained together to give them even more power. It has a free tier and paid tiers that cost 1/4 to 1/2 of other systems, and it has a vibrant and very helpful community. I pay $29 per month. One of the ones I built was working really well using ChatGPT 4o, but on a hunch I switched it to Claude 4 Sonnet and wow, what an awesome improvement in its responses! I like it so much that I became an affiliate: https://pickaxe.co/