Not quite. The LLM gives you a statistically probable sounding token stream. The calculator gives you a qualified answer within documented and deterministic limits of the device.

No one knows how to use either.

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charcircuit an hour ago | parent [-]

That is GPT-3. Modern models are rewarded based off the accuracy of their responses.

	▲	Aerolfos 16 minutes ago \| parent \| next [-]
		By... another AI model. Which uses statistical generation to decide whether the answer is likely to be accurate or not.
	▲	simianparrot 24 minutes ago \| parent \| prev [-]
		No they are not