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Claude Opus 4.8

anthropic.com

801–810 of 1001 posts

Re: Claude Opus 4.8

#801

Opus 4.8 says to take the car. 4.7 said to walk. “I want to wash my car. The carwash is 50m away. Should I take the car or go by foot?” https://claude.ai/share/5f7f738a-5f29-48ff-9807-9a2dd37fb405 https://claude.ai/share/ecd14393-9d42-4527-ae0c-89f3d05216c8

not an insider but surely recently trained models have test against six months old memes, much like how llms suddenly started learning how many r's there are in strawberry after that blew up

Re: Claude Opus 4.8

#802

Give us Mythos! This piecemealing doesn't help Anthropic at all, especially psychologically! They are playing a dangerous game, and I see many people leaving Claude Code for good - both due to the subsidy games, and for Anthropic not dogfooding and using unreleased models internally and giving us subpar ones. Benchmarks are nice, but the real-world experience is quite different - neither can you notice these slight i…

Anthropic seems to be making very business unfriendly decisions lately. Why are they taking so long to release Mythos? They're hurting their own lead.

If they're worried about misuse they could just KYC the damn thing! It's not hard.

Re: Claude Opus 4.8

#803

Give us Mythos! This piecemealing doesn't help Anthropic at all, especially psychologically! They are playing a dangerous game, and I see many people leaving Claude Code for good - both due to the subsidy games, and for Anthropic not dogfooding and using unreleased models internally and giving us subpar ones. Benchmarks are nice, but the real-world experience is quite different - neither can you notice these slight i…

Anthropic seems to be making very business unfriendly decisions lately. Why are they taking so long to release Mythos? They're hurting their own lead. If they're worried about misuse they could just KYC the damn thing! It's not hard.

Vote with your wallet. Cancel your Claude subscription and tell them why. GPT 5.5 > Opus 4.7 (haven't had enough time with 4.8 yet to make my decision)

Re: Claude Opus 4.8

#804

Opus 4.8 - High > how many days in the week have the letter d in them? > Two - Sunday and... wait, let me actually check. Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday. The ones with a "d": Wednesday, Thursday, and Sunday all have one. Monday too. So that's Monday, Wednesday, Thursday, Sunday - four days.

DeepSeek V4 Flash - High (answered in 3.4s, $0.00 cost)

    Thought: Let me think about this question. The days of the week are:
    Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday.
    Now I need to count how many have the letter "d" in them:
    - Monday: has 'd' 
    - Tuesday: has 'd' 
    - Wednesday: has 'd' 
    - Thursday: has 'd'  (Thursday)
    - Friday: has 'd' 
    - Saturday: has 'd' 
    - Sunday: has 'd' 
    Wait, let me be more careful:
    - M o n d a y - has 'd' 
    - T u e s d a y - has 'd' 
    - W e d n e s d a y - has 'd' 
    - T h u r s d a y - has 'd' 
    - F r i d a y - has 'd' 
    - S a t u r d a y - has 'd' 
    - S u n d a y - has 'd' 
    All 7 days have the letter 'd' in them.
    7
https://i.imgur.com/iWSaDxM.png

Re: Claude Opus 4.8

#806
post #135
post #77

A rambling comment: I think this is the first time we've had a third minor version bump on a frontier Anthropic model. (I count the 0.5s as major here, because they've been issued non-sequentially and also corresponded to massive capability leaps, eg, Sonnet 3.5, Opus 4.5). So now the Opus 4.5 family has successors 4.6, 4.7, and 4.8, each posting fairly modest claimed gains. My own experience w/ 4.6 and 4.7 are that…

I'm curious to poll HN on this issue. Do you feel like we've had meaningful/noticeable gains in terms of your programming workflows between 4.5 and 4.7? My 2¢, I personally feel like all of the productivity gains since 4.5's release (in November 2025!!) have come from improvements to the harnesses (cc, cursor cli, codex, opencode, whatever) AND from the context window expansion from 200k to 1M. But the actual "raw" i…

Yes. You and some random indigenous guy in the Amazon likely share the same intelligence but you are more capable because you have access to writing/reading, computer, car etc. Intelligence is more than raw intelligence. It's harness, skills, tools, memory etc. If you improve all the latter but keep the raw intelligence (LLM) fixed, you certainly get better results. Same with us humans.

Re: Claude Opus 4.8

#807
post #77

A rambling comment: I think this is the first time we've had a third minor version bump on a frontier Anthropic model. (I count the 0.5s as major here, because they've been issued non-sequentially and also corresponded to massive capability leaps, eg, Sonnet 3.5, Opus 4.5). So now the Opus 4.5 family has successors 4.6, 4.7, and 4.8, each posting fairly modest claimed gains. My own experience w/ 4.6 and 4.7 are that…

I won't be surprised if the next gen frontier models are the last. There's orders of magnitude of low hanging juice to squeeze out of smaller models. It is almost guaranteed that a 60-90B model can outperform current SOTA in coding tasks within 2-3 years (design not certain, probably unlikely). It is far less clear that a 1.2T model will be meaningfully better enough to justify training it. As far as reasoning is con…

[dead]

Re: Claude Opus 4.8

#808
I find it freaky how you notice the language change between models. Some words which pop up now all the time, that I don't remember reacting to with previous models, such as "honest(ly)" and "load-bearing". Feels like a new AI smell, like em-dashes or "it's not just x, it's y".

Re: Claude Opus 4.8

#809
post #104

There is a hole in the boat's bottom due to Chinese models. They might not be as good but they are not bad either or at least I had hard time finding any issues with Deepseekv4 Flash and Pro variants. They get their job done sometimes rarely giving up till they are done what they are after. So even for enterprise deployments, as the dust settles down, CFO/CTOs might find out that deploying on an internal cluster of G…

I’ve been using Kimi 2.6, GLM 5.1 , Minimax 2.7 and lately deepseek. I only spend 40$ a month and I don’t see the point in paying for Opus/Codex. Chinese models are really quite good at a lot of stuff.

Which harness?

Re: Claude Opus 4.8

#810
post #14

I can't help but think of Iphone updates since about 2018. The thinnest, fastest, longest battery life Iphone ever. It seems mostly the same and I probably won't be able to tell other than the name, but everyone buys it anyway. This is good psychology for the labs. When Buffett invested in Apple he loved citing how most people would rather give up their second car than their Iphone.

Are we supposed to have two cars?
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