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> GPT3.5 had most of the capabilities of the initial ChatGPT release, just with a different interface I believe two other factors were the cost (especially of
by MillionOClock 3y ago
> GPT3.5 had most of the capabilities of the initial ChatGPT release, just with a different interface
I believe two other factors were the cost (especially of fine tuned models, IIRC fine tuned davinci cost $0.20 per thousand tokens) and also that OpenAI hadn't very clearly shown just how much higher the quality could get once RLHF'd. I remember asking davinci-instruct to parse some data, and the reliability really seemed much lower than ChatGPT at launch, to the point that, at the time, I thought GPT-4 was secretly powering ChatGPT.