Opus Fast Mode is 30$/150$/M Input/Output cost. Mythos's pricing (from model card) is 25$/125$ Input/Output cost.

Based on this I doubt that Mythos pro is too dangerous to release or provides significantly more value.

hsuduebc2 13 hours ago | parent | next [-]

As far as my understanding goes. It is not a breakthrough model itself but finetuned model with right tools and skills. Fairly similiar to today's coding agents with difference that they are made for software engineering not cyber security.

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ACCount37 12 hours ago | parent [-]

Mythos is the next point on the scaling curve.

It has considerably more parameters than most frontier models of today. Which gives it a lot more oomph per token.

Is it a "breakthrough" as in "something novel and unexpected"? No. Is it a "breakthrough" as in "something we know works, but made to work on a greater scale"? Very much so.

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hsuduebc2 9 hours ago | parent [-]

So it's just a bigger model? Like for example todays 1T models?

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ACCount37 8 hours ago | parent [-]

Supposedly 10T scale. Literally the next big thing. A bit like what OpenAI tried with GPT-4.5 - but Anthropic actually made it work with MoE, reasoning, tool use, RLVR, etc.

It matters because the "g factor" of today's LLMs is at least in part a function of raw scale. Larger models are just smarter - assuming you can handle the training and inference at this increased scale.

	▲	AnimalMuppet 8 hours ago \| parent [-]
		So, realistically, how much further can this go? How many more orders of magnitude?

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FergusArgyll 12 hours ago | parent | prev [-]

You just disingenuously compared it to fast mode which is expensive not due to model strength or size but because you lose all kind of optimizations