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Claude Opus 4.6

anthropic.com

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Re: Claude Opus 4.6

#223

Earlier quoted context omitted.

Its SWE bench pro not swe bench verified. The verified benchmark has stagnated

Any ideas why verified has stagnated? It was increasing rapidly and then basically stopped.

it has been pretty much a benchmark for memorization for a while. there is a paper on the subject somewhere.

swe bench pro public is newer, but its not live, so it will get slowly memorized as well. the private dataset is more interesting, as are the results there:

https://scale.com/leaderboard/swe_bench_pro_private

Re: Claude Opus 4.6

#224
post #17

> We build Claude with Claude. Our engineers write code with Claude Code every day well that explains quite a bit

Also explains why Claude Code is a React app outputting to a Terminal. (Seriously.)

Also explains why Claude Code is a React app outputting to a Terminal. (Seriously.)

Who cares, and why?

All of the major providers' CLI harnesses use Ink: https://github.com/vadimdemedes/ink

Re: Claude Opus 4.6

#225
What I’d love is some small model specializing in reading long web pages, and extracting the key info. Search fills the context very quickly, but if a cheap subagent could extract the important bits that problem might be reduced.

Re: Claude Opus 4.6

#226
post #68

Earlier quoted context omitted.

Also explains why Claude Code is a React app outputting to a Terminal. (Seriously.)

There’s nothing wrong with that, except it lets ai skeptics feel superior

https://www.youtube.com/watch?v=LvW1HTSLPEk

I thought this was a solid take

Re: Claude Opus 4.6

#227

Earlier quoted context omitted.

There's no way they actually work on training this.

I suspect they're training on this. I asked Opus 4.6 for a pelican riding a recumbent bicycle and got this. https://i.imgur.com/UvlEBs8.png

It would be way way better if they were benchmaxxing this. The pelican in the image (both images) has arms. Pelicans don't have arms, and a pelican riding a bike would use it's wings.

Re: Claude Opus 4.6

#229
post #46

The benchmarks are cool and all but 1M context on an Opus-class model is the real headline here imo. Has anyone actually pushed it to the limit yet? Long context has historically been one of those "works great in the demo" situations.

Opus 4.5 starts being lazy and stupid at around the 50% context mark in my opinion, which makes me skeptical that this 1M context mode can produce good output. But I'll probably try it out and see

Re: Claude Opus 4.6

#230

From the press release at least it sounds more expensive than Opus 4.5 (more tokens per request and fees for going over 200k context). It also seems misleading to have charts that compare to Sonnet 4.5 and not Opus 4.5 (Edit: It's because Opus 4.5 doesn't have a 1M context window). It's also interesting they list compaction as a capability of the model. I wonder if this means they have RL trained this compaction as o…

> From the press release at least it sounds more expensive than Opus 4.5 (more tokens per request and fees for going over 200k context). That's a feature. You could also not use the extra context, and the price would be the same.

The model influences how many tokens it uses for a problem. As an extreme example if it wanted it could fill up the entire context each time just to make you pay more. The efficiency that model can answer without generating a ton of tokens influences the price you will be spending on inference.
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