Opus 5.5 versus GPT-6 Sol


i've got 2 for the price of 1 for you: LAB-0005 and LAB-0006.

the headlines for 0005:

  • a big maths claim from OpenAI.
  • a model price fight.
  • Grok 4.7 on a real job.
  • what agents might do to app checkout.
  • and a local image model i want to test.
  • how to use GPT-6 Astra to create brand design assets

​
(spoiler alert: the local image model is wild. it does *anything*. without guardrails - scary stuff if put in the wrong hands)

check out episode 0005 here:

video preview​

headlines for 0006:

  • Opus 5.5 drops
  • 1.5 hours later, GPT-6 Sol and Luna launch
  • what do the benchmarks say about them all??
  • something interesting about how Claude resets work
  • 3 tips on getting the most of out Fable 5.5

check out episode 0006 here:

video preview​

and there ya have it - 2 for the price of 1.

have a great weekend and until the next one,

Lenny

Lenny’s AI Builders

i’m Lennox. i sift through AI Twitter and share one thing i tried with ChatGPT. for people making products, content and useful systems. five emails a week, with a weekly option.

Read more from Lenny’s AI Builders

i gave two AI setups the same four hours i built BuilderBench around work i actually use AI for: writing, editing video, designing pages, making motion graphics, using apps, researching decisions and fixing workflows. the first pilot compared Opus 5.5 with Claude and GPT-6 Sol with Codex. same frozen task pack. four hours of offline work, plus a live founder conversation. Extra High reasoning and Standard speed. i scored the anonymous work, then locked my ratings before revealing the names....

7 ai updates that changed how i build this week: we've entered the token scarcity era use a handoff.md for long-running agent tasks check out CUA (Computer Use Agent) if you use Claude agent portability is the new meta; don't get locked in to one app ... ... ... [this one's a fkn doozy!] i'm not gonna make it that easy for you ;) want the last 3 updates? you know what to do! watch LAB 0004 on YouTube speak soon x Lenny

Jev is a new type of AI based on System 1 thinking. wtf does that mean? Daniel Kahneman coined this idea of System 1 and System 2 thinking. basically, S1 makes decisions super fast; S2 thinks slowly about a problem. think: difference between reacting after feeling your hand on a stove vs using mental maths to calculate 69 x 43. since the end of 2024, AI models have been getting better (much, much better) at S2 "long and slow" thinking. that left a gap for S1. until Jev. that's what i dive...