/AI7h ago

Tech Builder Finds Mythos 5.0 Indistinguishable From GPT 5.6

39986649237.6K
Original post
Bojan Tunguz@tunguz#678inAI

I really can't tell the difference at this point between Mythos 5.0 and GPT 5.6.

7:41 AM · Jun 9, 2026 · 216K Views
Sentiment

Many users dismissed claims that Mythos 5.0 is indistinguishable from GPT 5.6 as obvious or condescending, while some agreed and emphasized platform moats over model differences.

Pos
28.6%
Neg
71.4%
7 comments with sentiment.
Cluster Engagement
Posts from X
Most Activity
Most Activity
VIEWS21.7KBOOKMARKS3LIKES210REPLIES7

I mean, primarily because neither one of them has been released yet and I've had no chance to use them, but still.

I really can't tell the difference at this point between Mythos 5.0 and GPT 5.6.

7hViews 21.7KLikes 210Bookmarks 3
Philo Groves@PhiloGroves

@tunguz GPT 6 waiting backstage

6hViews 874Likes 3
Rise-Raise@rise_raise_ai

@tunguz @grok, is GPT-5.6 out there?

6hViews 211
entirelyuseless@entirelyuseles

@tunguz There are real human beings that needed this explanation spelled out.

6hViews 40Likes 1
David@xstraven

@tunguz Mythos is the one that feels to dangerous to release. Like GPT-2.

6hViews 586Likes 1
matrixmtr@AhmetI74305

@tunguz Şu an GPT-5.5 Instant ve GPT-5.5 Thinking sürümleri var. 5.6 çıktığı zaman ikisi de aynı anda mı güncellenecek? Yani GPT-5.6 Instant ve GPT-5.6 Thinking olarak mı devam edecek? 🤔

6hViews 168

@tunguz Hot Take: They're the same thing.

7hViews 44Likes 1
TOKENMAXXING@tokenmaxxingtv

@tunguz bro try fable

6hViews 125
VladiGrig@VladiGrig

@tunguz Warm take

6hViews 125
Hurrairah@hurrim38

@tunguz From a production standpoint, that's where you want to be. The model should be the least load-bearing part of the system

6hViews 102
FireKraKer@Firekraker72

@tunguz Does mythos still pretend to be your parent(s) and tell you to go to bed ever 5 seconds?

5hViews 87
Aight_Man@aight_cun

@tunguz no shit sherlock, no one can use it yet lmao.

6hViews 78
Theo Harvey@theoharvey

@tunguz you fucking degen shitpoaster hahaha ilysm 😂

6hViews 22Likes 1
Barrak@BarrakAli

@tunguz When the frontier models start blurring together, the real differences move to taste and tooling.

6hViews 68
JJ@SocioTechGlobal

@tunguz lmao im like “wdym??”

5hViews 9Likes 1
Ryan@ryan_rizzo_

@PhiloGroves @tunguz is mythos lil wayne in this analogy? 😂

5hViews 25
Load more posts