Opus 5 seems like a remarkable downgrade compared to 4.8.
Opus 5 is blatantly lying to me about basic thermodynamics, messing up simple math, and constantly contradicting itself when you ask it to rethink core assumptions.
@AnthropicAI really blew this release
@cavemanloverboy@AnthropicAI It insisted I could put something in the oven in a pot at 150 C and expected it to maintain a temperature of 88 C and not exceed 95c for three hours.
When I ask it why it said because the pot is cast-iron which is a good insulator