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https://www.anthropic.com/news/claude-opus-5 - A blog post for those not wanting to go through a 190ish page pdf


I like how they highlighted Opus 5 as the best for “Agentic Coding” even though the number is slightly lower than Fable. Close enough for marketing, I guess!


At half the price and less likely to auto-downgrade, it sounds like a reasonable claim.


> At half the price and less likely to auto-downgrade, it sounds like a reasonable claim

Two benchmarks (artificial analysis and vals) show a increase in cost (a insane increase for vals compared to Opus 4.8).

Already posted this before, so here is the link.

https://news.ycombinator.com/item?id=49041158


But better cost for the same performance. According to AA, Opus 5 _medium_ is as smart as Opus 4.8 _max_, at 1/3 the cost and twice the speed. And if you need a better response, you can turn it up to 11.


Then your comparing to a level of GPT 5.6 High, what is 50% cheaper then Opus Medium for the same intelligence / score.

You see the issue, if you try to scale effort down, you also need to compare how other competing models compare.


given that i couldn't even use fable without it downgrading to Opus, this is just a straight upgrade for me


Opus 5 also downgrades. it's now Fable -> Opus 5 ; Opus 5 -> Opus 4.8. Unclear why they want to nerf their own products with sometimes right classifiers. I guess the government ban might've been real and not coordinated marketing?


I don't understand why people believe this conspiracy theory of "oh the government ban was just marketing". That claim feels so incredibly ridiculous to me. It cost Anthropic a ton of money and reputation, and worst of all: it absolutely killed their competitive advantage. They were 1-2 months ahead of OpenAI, but trump conveniently gave OpenAI the time they needed to catch up and push 5.6 out the door without having to lose their subscriber base to the competitor.


Best can describe multiple things.

Almost as good for half the cost is something I'm very comfortable describing that way.


> Almost as good for half the cost is something I'm very comfortable describing that way.

It's also not unusual in this context - many people describe the Chinese models as "best", because it's 80% as good for 20% of the price (or similar).


Hopefully it's not like old Opus, where it was actually more expensive than Fable cause it thought for half an hour, got it wrong, and then thought until you ran out of credits trying to come up with a correction, while Fable just went for it and did it in one go, getting it right the first time without thinking more than a few seconds.

Got an endless list of stuff done with Fable, Opus 4.8 was like a flailing braindead idiot in comparison. Maybe this one is a bit better if it's distilled.


Best marketing


The blog posts figure cites Frontier-Bench for its agentic coding score, and shows Opus 5 beating Fable 5 43.3% to 33.7%.


Recent releases have said something to the effect (paraphrasing here):

"Use <less expensive or older model> for everyday tasks and <other non-critical stuff>. Use <more expensive or recent model> for complex coding tasks, refactoring large code bases, etc.".

Then, the next model/release emerges and the previous "best for complex" gets demoted to "everyday".

Obviously, it's all relative. But, it does beg the question: was the previous model really good for complex coding tasks or no? I mean, how is it now suddenly only good for the "easy" stuff?


> I mean, how is it now suddenly only good for the "easy" stuff?

Because your expectations have changed.


I'm sure the marketeers would love for the public's assessment of complex versus easy to conveniently shift per their release cycles; or for the public to simply forget their prior marketing.


I think you're being overly cynical here. First, I don't see any claim that is the world's best model for agentic coding. Second, it is absolutely the best model in terms of coding performance vs. dollar, and it's raw performance seems very close to the frontier.


GPT 5.6 is far more token efficient at most tasks with similar performance. Especially so for Opus 4.8, still to be seen with Opus 5.

Where are you getting cheaper per dollar?


How are you supporting the claim that GPT 5.6 is "far more token efficient" than Opus 5? Tokens equal, output is cheaper for Opus 5 ($25/1M) than GPT-5.6-Sol ($30/1M), and it seems to outperform slightly on agentic coding benchmarks.


The first chart in the blog post shows a similar $/performance curve to GPT 5.6.

Where 5.6 has optionality to run much cheaper along the same performance curve at lower thinking levels.

There's a later chart that shows Opus 5 ahead, but seems like an esoteric benchmark rather than for common use. (Novel problem solving)

If they had a more efficient model at coding they would lead with that chart.


Here is one data point for cost:

https://artificialanalysis.ai/models?cost=intelligence-vs-co...

Here is another data point for output token efficiency:

https://artificialanalysis.ai/models?cost=intelligence-vs-co...


Token cost and token efficiency are two unrelated metrics, and anyways what really matters is neither in isolation - it's cost to complete a task.


https://www.anthropic.com/_next/image?url=https%3A%2F%2Fwww-...

It seems roughly equal according to Anthropic's benchmarks


It would still be the best model per dollar if the score was 2% lower instead of 0.1% lower. Would it be ok to still give it the highlight color then?

How big of a lie is too big? Especially when no lie needed to be told at all: many including myself would have noticed the tiny 0.1% deficit and been suitably impressed by the Opus 5 result.

I’ll admit this is a small deception by today’s standards. I’m one of those who believes in truth for truth’s sake.

Edit: typo


we don't know if it is 0.1% deficit, could be 0.05%


So highlight both then.


Which numbers are you seeing? It does show that it's better than Fable 5 in most things related to coding?


Using the most expensive model for all of your agentic coding work hasn’t been good practice for a long time. Not unless you have infinite money to spend.

Fable is typically used for key planning, architecting, and review tasks.

I think this is a case where you don’t understand the use case, not that the marketing department is making mistakes.


They cost the same if you're already at $200/mo


Fable consumes your usage at a higher rate.

If you bought the $200/mo plan and you don’t use it much, using Fable for everything is fine.


I am not a tokenmaxxer per se but I blow through my weekly quota on my max plan in 3-4 days… fable would make that worse.


Eh, not really. Fable does a lot better on coding than Opus 4.8.

Just this past week Fable was able to figure out a couple of small issues for me where Opus was failing to.

Also both are still somewhat bad at UI implementation. Opus more so


In my opinion, the frontier is passed what is really needed for coding. Fable is good as a supervisor.


Also it scored worse on DeepSWE than chatgpt 5.6 sol


Yeah I spotted this immediately too. I'm sorry. You're supposed to be a multi billion dollar company and you can't even highlight your chart honestly?


And no data retention for 30 days.


I mean that certainly makes it best-in-class


Thanks for that, looks really good. I can see why they were constantly pushing back fable going out of the max sub with these benchmarks


I wonder why FrontierCodev1.1's data lists Opus 5 as better than Fable 5.


this feels like the perfect example of an LLM producing a long text document. And end users just using an LLM to summarize it without actually reading it


I have a suggestion, a major part of 3D modelling that many can struggle with is actually UV mapping. It can take a bit of time to do to get it right and if it could be done decently with one click with better results than with Blender or paid applications like Rizom. They'd probably be a decent market out there.


I wish hah puzzling over the correct unwrap option is a pain


oh No, they sold Bandcamp... According to Jason Schreier https://twitter.com/jasonschreier/status/1707416234461909487


I always advise people to at least have a backup spot to send people to even if they don't maintain their own website, and I take my own advice. I expected something like this, so I've been dropping every album into an item in my Ko-fi shop: https://ko-fi.com/s/7e9f22c63b

Ko-fi is 25GB for free and 200GB for paid accounts, so most things will fit. I'll probably cross-post it to Patreon's new shop feature in the near future just to be safe.

edit: and confirmation

https://www.songtradr.com/blog/posts/songtradr-bandcamp-acqu...


That's a bit disappointing. As a user I just want Bandcamp to be owned by someone who gets it and leaves it alone. As far as I could tell, Epic barely touched Bandcamp. I'm unfamiliar with Songtradr but they have more incentive to integrate the core product into their services as they're in the industry and a smaller company (more need to make the acquisition work for them.) I hope it goes well.


I'm somewhat hopeful about the synergies here. Giving musicians an easy path to monetize their catalog, as well as market their availability to be commissioned by brands, is a good thing... especially when artists are being dually hammered by Spotify's deci-cents-per-stream industry baseline and live music promoters' anticompetitive behavior.

That said, there are ways Songtradr could abuse their new position of trust. I hope they're smart enough not to do that, but I also hope that an archival project for free downloads on long-inactive Bandcamp accounts is underway...


Self-reply: https://news.ycombinator.com/item?id=37696171 makes me less hopeful that they're operating in good faith...


Interesting. I didn’t know about the union aspect and regardless, not retaining staff is a great way to stop understanding what’s important to preserve.



Hopefully they don't mess it up too badly. Bandcamp is the only way for a Linux user not in the US to get non-DRM music these days :(.


Are Junodownload, Boomkat, Bleep, Qobuz, etc. available in your country?


Some of them seem to be, so that is one alternative (though they don’t have the genres I listen to). Qobuz is only available for streaming


Try https://www.pianobook.co.uk/ Tons of free sample libraries


I would think this would be a better link. Its pilot's own words too https://jpcvanheijst.com/blogs/2017/07/596970-rocket-launch-...


Agreed, and the other articles there also make excellent reading. The avationist blog does add content, though, notably a photo taken from the ground by a Chinese blogger of the same event.


There's this link in the "pilots own words" post: http://liuqiankktt.blog.163.com/blog/static/1212642112017624... (scroll down for ground photos, appears to be the source for the photo in the aviationist post)


There is a longer PDF linked below this article with more detailed information[1].

Wasn't sure what would be the better link. The PDF or Summary.

[1]http://www.metoffice.gov.uk/media/pdf/8/c/Changes_In_The_Cli...


Choosing a favourite guitarist is like trying to decide between a favourite wine. So many choices but to me he has always been one of my favourites.

It hard to explain why exactly I, as a guitarist enjoy listening to his music. His heartfelt singing was warming but truthfully it the lady in his life. "Lucille". That's the name of his guitar. With her, he had this amazing tone. Its unbelievable. The way he made Lucille sing. This voice he gave her or she gave him just makes the hairs on the back of my neck stand up every time I listen to the pair of them.

People talk about legacy and he has an amazing one. It's true he has Inspired so many.

But don't be sad today, be happy for the man and the extraordinary life and legacy we celebrate which will continue to live on through his music.

PS I recommend the albums Deuces Wild and Riding with the King for your listening today.


I say Live at the Regal, hands down.. Then Live in Cook Cook County Jail. It's difficult to find a better live album than that.


Those are the two I've been spinning all day today. His best work IMO.


Yeah its the two that most other blues artists relate to..


I'd add "Live and Well" and "Indianola Mississippi Seeds" (even though purists hate the latter, I think it's a great album).


His tone is what gets me too. I saw an interview with him on YouTube a few days ago with something that actually really surprised me. When he's on tour outside the US he doesn't bring an amplifier. He plays whatever the venue provides (usually, but not always, a Fender Twin Reverb). He also said he doesn't spend time setting it up. He controls the tone entirely from the guitar.


Interesting! I found the video: https://www.youtube.com/watch?v=O0mAQdTsVp0


That's it!


The thrill is gone...

RIP B.B., you'll be surely missed.

https://www.youtube.com/watch?v=xVxCtt3s_1M


Excellent choice there. If you want to know what they mean by "tone" when talking about guitar, listen to that...


Reading https://www.openssl.org/~bodo/ssl-poodle.pdf may also be helpful if you want to fully understand this exploit.


The post on DO's blog maybe be more informative: https://www.digitalocean.com/company/blog/coreos-now-availab...


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