BREAKING 🔥: A new Claude Mythos 5 model slug has been spotted via Dev Mode.
Claude Mythos is planned to be released as its own model class, besides Haiku, Sonnet and Opus model families.
Soon? 👀
BREAKING 🔥: A new Claude Mythos 5 model slug has been spotted via Dev Mode.
Claude Mythos is planned to be released as its own model class, besides Haiku, Sonnet and Opus model families.
Soon? 👀
Positive users are hyped about Anthropic's new Claude Mythos model class and Mythos 5 slug for its dedicated upgrade potential, while negative users regret subscriptions and complain about vague timelines plus slow current models.

@testingcatalog Considering they haven’t updated haiku in forever I think sonnet will be the new lowest IQ model, and haiku the best with opus in the middle

@ai_with_gregor We may see a new Haiku at some point too as it is powering their voice mode afaik

@testingcatalog HERE WE GO

@testingcatalog Mythos is coming 🔥
Positioned in @mythosrouter

@SahilPanhotra @testingcatalog Mythos is just Anthropic's "GPT Pro" class (it never offered a public model that was as powerful as GPT Pro).
And the price discrepancy will be similar:

@testingcatalog Mythos 5 = Opus 5, and the current Opus models (since 4.7) are nothing but a new generation of Sonnet models.

@testingcatalog I just noticed that Mythos actually made sense in the Haiku/Sonnet/Opus/Mythos logical progression ("Mythos is a worldview-based traditional story or body of mythology")

@SahilPanhotra @testingcatalog Why would it mean that the Opus family is dead?
That's like saying "GPT 5.5 Pro exists. Does this mean that GPT 5.5 Extra High is dead?"

@SahilPanhotra @testingcatalog Did you pay attention to the comparison?
Mythos will be a very large expensive model, like GPT Pro is. You will not be able to afford it for most things you do. Opus will be the most expensive model family you will run for most things.

@testingcatalog We know it will be beautiful but expensive :/

@testingcatalog it will be back soon...

@testingcatalog @grok verify

@someRandomDev5 @testingcatalog do you still use gpt 4o ?
do you still use claude sonnet 4 ?

@someRandomDev5 @testingcatalog thanks for pointing that out
what i mean by dead was opus family ends at opus 4.8
now the newer family is mythos 5 and ahead
for better improved models

@testingcatalog it directly starts from claude mythos 5 ?
like seriously 5 ?
does that mean opus family is dead?

@testingcatalog Let's gooo, what's your prediction guys, next week or?

@testingcatalog they did say weeks... 😉

@testingcatalog seen it since 1h+

@testingcatalog haiku and sonnet are depreciated?

@testingcatalog mythos has entered the chat!