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Posted by crorella 6 hours ago

GPT 6.1 Sol: Near-Astra intelligence for a fifth of the price(openai.com)
714 points | 641 commentspage 3
intenex 5 hours ago|
They released GPT 6 Sol literally 6 days ago. We've accelerated to a weekly model release cadence. That seems like...a big deal.
zarzavat 5 hours ago||
It's more like they released GPT 6 Sol too early because they were under pressure and now they are releasing the real version. You cannot do anything more than minor post-training in a week.
toasty228 5 hours ago|||
Implying they don't have like 3 or 4 "models" (different quants, post training, plain renaming) on the back burner at any point in time to do exactly that
tripleee 5 hours ago|||
It's a competitive strategy with Anthropic, not necessarily releasing as soon as they're done
ychnd 3 hours ago|||
I think this was supposed to be new Astra, but it came out shit. So instead of shelving it, they found a way to make it still seem like progress.
nater5000 5 hours ago||
>That seems like...a big deal.

They can release a new version every day if they wanted to. The question is whether or not the new releases provide substantial improvements or not. It's not hard to just go through the motions, bump the minor version, then make an announcement to rile up the users who don't get that none of this is standardized or regulated in any way and it's literally all made up by the company trying to sell them the product.

nzoschke 4 hours ago||
OpenAI is feeling really competitive again.

I just added an agent / coding agent into an email app, and doing it through `codex` and its Codex App Server couldn't have been easier, and the results are very compelling.

The open source harness, API around it, and friendliness for connecting a subscription puts Claude to shame right now.

A few more thoughts here https://housecat.com/blog/introducing-housecat-agent

aetherspawn 1 hour ago||
Astra requires multiple turns and fresh refactoring agents to produce good code.

Fable 5.1/Opus 5.5 isn’t different, but the first cut is better quality.

Astra is a whole order of magnitude cheaper than Fable, and the Anthropic usage limits are ridiculous. Layers on layers of limits that constantly trip.

We don’t really use Sol because Astra X High is cheap. Some have mentioned regressions but we haven’t noticed any with Astra.

ylsilva 5 hours ago||
For most sane people, OpenAI is the way to go... A lot of usage with very good models, but you know that Anthropic is laughing all the way to the bank with Opus 5.5 being "the best" model right now... There are a ton of people (and companies) that will just refuse to use anything else than the highest benchmarking model in existence.
xyzzy123 5 hours ago||
Whats interesting right now is that those people also see opus 5.5 as being CHEAP because it's something like half the price of fable or astra.
user43928 2 hours ago||
It is at least 3x cheaper than Astra in the 20x subscription.

So yes, it is clearly cheap in comparison.

jfrbfbreudh 4 hours ago|||
I have personal Max subscriptions for both. Nothing OpenAI offers touches Opus 5.5.
Stevvo 4 hours ago||
I'm on both $20 plans. Got more out of Anthropic these last few weeks. But the value proposition shifts constantly.
jjcm 3 hours ago||
Here's a comparison of a image->html flow for GPT 6.1 Sol vs Opus 5.5.

GPT 6.1 Sol: https://html.non.io/lcars-gpt-6.1-sol

Opus 5.5: https://html.non.io/lcars-opus-5.5

Overall, opus executes a bit better than 6.1 sol, which surprises me. Astra has been the best model for this flow so far, so the fact that Sol missed some alignment / vision pieces here is interesting. It's not bad by any means, but I think where Opus really wins is the motion animation of the svgs / final polish (scroll down to the "customize every detail" section on the homepage, the svg animation is beautiful for that).

Still, it executed quick and was quite cheap to run.

jjcm 3 hours ago|
Original design is here btw: https://diffui.ai/app/canvas/5093e689-1e74-4f26-b632-2a4500f...
badatnames 17 minutes ago||
Low key ad instantly sold me. Awesome looking tool, bookmarked
iamdelirium 6 hours ago||
I wonder if releasing this soon sort of validates the rumor that Sol 6 was just the Terra model they bumped up and slashed the price.

Then Opus 5.5 caught them off guard and now they're actually releasing the correct sized model.

squidbeak 5 hours ago||
Whether it was or wasn't, Terra's absence shows Sol has replaced it as the new middle model.
hyperpape 5 hours ago||
If that were true, they’d have axed their margins.
glimshe 6 hours ago||
This is great. But maybe part of the motivation is that 6-Sol wasn't as good as initially advertised so they needed to tweak it. I felt a clear degradation in quality in some simple refactoring tasks vs 5.6-Sol.
codewithcheese 4 hours ago||
sol-6 is terra-6. They figure that no one was using terra and they could bring the speed and cost saving of terra distilled on astra, but rebranded as the more popular sol.

Back fired because of opus 5.5.

So now we get the real sol-6 as sol-6.1, and OpenAI will eat the cost to stay competitive.

This could be invalidated if sol-6.1 is the same speed as sol-6.

JacobAsmuth 4 hours ago||
6.1 Sol is slower than 6 Sol: https://artificialanalysis.ai/models/releases/gpt-6-1-sol

However, that doesn't say much. You can just run a smaller model at a larger batch size to get higher throughput but lower interactivity.

5555watch 3 hours ago||
It's not that terrible then if that's the case. 5.6 Sol was superb in my eyes, and while I've tried a million things, there hasn't been anything that 6 Astra improved or did better than 5.6 Sol, while costing a ton of time and resources. Including research topics, where it should have excelled. So even if 6.1 Sol is no worse than 5.6 but cheaper and faster, the gutted Pro200 might still make sense.
mkaic 5 hours ago|
I got a popup in my Codex just now saying "Try out 6.1 Sol!" and so I clicked the button to try it, and intriguingly, it set my model selector to "GPT-6 Astra Light" which makes me think 6.1 Sol may be in some way just a lighter/distilled version of Astra? defo interesting, not sure if I should read too much into it though. I see no option for directly selecting 6.1 Sol in my Codex Desktop UI.
solarkraft 3 hours ago||
I wouldn't read too much into it. I've gotten this popup for a model I hadn't had access to yet before and it resulted in what you describe.
slekker 5 hours ago||
Astra Light is the default option in the UI, so likely a bug
skerit 4 hours ago|||
So their original plan was to axe Terra, but then introduce an "Astra Light" model a week later? They had a nice lineup named for a whole 3 months, and they're already messing with it.
recursive 4 hours ago|||
Wait, so is coding not solved?
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