mythos is probably at least 5x faster than fable on hard problems if you calculate the thrashing,
12:18 PM · Jun 11, 2026 · 1.4K Views
Sentiment
Many users thanked the Mythos token-usage breakdowns and independent testing as genuinely useful, while others called the model expensive, slow to respond, and often unusable due to excessive flagging.
Pos
59.5%
Neg
40.5%
45 comments with sentiment.
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Christian@chrislciaba
@theo What do you view as the primary advantage over other models from what you’ve seen?
20hViews 4KLikes 3
BOOKMARKS1
Niraj Rajgor@rajgor_niraj
@theo Class Act on YT Thumbnail 🙌
18hViews 1.9KLikes 12Bookmarks 1
LIKES15
Skye@thecosmicskye
@theo You just told us all to cancel our anthropic subscriptions... now you give them thousands of dollars?
20hViews 2.3KLikes 15
RETWEETS51
Theo - t3.gg@theo
Mythos is here. It's called Fable 5. I spent the last 24 hours spending thousands of dollars in tokens to give you a realistic breakdown.
20hViews 111.7KLikes 1.5KBookmarks 771
REPLIES4
Tim Jayas@TimJayas
@theo Imagine OpenAI launches GPT-5.6 which is same as Claude Fable but 10x cheaper 💀
20hViews 1.4KLikes 10Bookmarks 1
Jan-Stefan Janetzky@iGottZ
@theo tokenmaxxing.. it's a sport I guess.I'm at 96% of my weekly now
19hViews 1.2KLikes 1Bookmarks 1
JesusIsGodAndKing2@mattr7777777
@theo Literally none of this matters, you said it yourself lol. 8 minutes for almost $100 cost of compute, that's the real price of this model, and only the uber wealthy can use it. I'll just wait for a reasonably priced model from OpenAI that can do the same and not break the bank.
17hViews 1.7KLikes 9
Rota@pli_cachete
@DanielleFong How do you have mythos access?
4hViews 546Likes 8
Luis Lozano@luislozanog86
My experience is similar, I ran frontier AI research 24 hours and its much better than Opus, it feels like a generation leap.
However, when compared to GPT 5.5 I'd say is like 10% better so more like incremental gains.
My prediction is GPT 5.6 is going to be better than Fable 5.
20hViews 996Likes 9
Shubham Sharma | AI & Tech@editxshub
@theo You can add CC to your videos? It's extremely helpful. It's just a suggestion.
13hViews 1KLikes 4
Shyam Choudhary@shyamcxy
@mattr7777777 @theo Btw GPT 5.5 Pro costs 4X more then Claude Fable
16hViews 38Likes 1
Fabio Paniconi@paniconi_fabio
@theo Is pure trash model any question is flagged as cyber security even if it's not, literally unusable
16hViews 787Likes 2
Zygis@zygisSS22
@theo the thumbnail is fire!!!
Could you please do a video on frontierCode? It rubs me the wrong way, the timing and the results I feel like there is a bigger story behind it.
17hViews 717Likes 2
Alex 💪@awpthorp
@theo @grok summary please
20hViews 495Likes 2
Ahmed Khayat@thekhayat
@theo @grok summarize this video
19hViews 527Likes 1
Dr. Josh C. Simmons@drjoshcsimmons
@theo Model sucks bro.
Pack it up, hype is done.
18hViews 324Likes 5
akashmondal.eth@akshmnd
@theo @grok gimme tldr
18hViews 217Likes 1
Ｓ𝙖ᒎᎥ𝗱👨💻@techtasium
@theo you spent so much money in short amount of time, did you build anything or it's just random prompts?
19hViews 1.2KLikes 3
Nikhil Sehgal@nikhilsehgal_ai
@theo @grok what's the TLDR here
17hViews 84Likes 1
AI Flip Monkey@aiflipmonkey
@theo For the first time in a while eaten through my weekly limit, just wondering do I get a second Claude sub or give Ciodex a go?
19hViews 694Likes 3
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