I get a little sad with every new Claude release. Sonnet 4.5 is my favorite and each new model means it's one step closer to being retired. Nothing else replaces it for me
Claude Opus 4.7
661–670 of 1001 posts
Re: Claude Opus 4.7
#662> We stated that we would keep Claude Mythos Preview’s release limited and test new cyber safeguards on less capable models first. Opus 4.7 is the first such model: its cyber capabilities are not as advanced as those of Mythos Preview (indeed, during its training we experimented with efforts to differentially reduce these capabilities). We are releasing Opus 4.7 with safeguards that automatically detect and block requests that indicate prohibited or high-risk cybersecurity uses.
It feels like this is a losing strategy. Claude should be developing secure software and also properly advising on how to do so. The goals of censoring cyber security knowledge and also enabling the development of secure software are fundamentally in conflict. Also, unless all AI vendors take this approach, it's not going to have much of an effect in the world in general. Seems pretty naive of them to see this as a viable strategy. I think they're going to have to give up on this eventually.
Re: Claude Opus 4.7
#663This comment thread is a good learner for founders; look at how much anguish can be put to bed with just a little honest communication. 1. Oops, we're oversubscribed. 2. Oops, adaptive reasoning landed poorly / we have to do it for capacity reasons. 3. Here's how subscriptions work. Am I really writing this bullet point? As someone with a production application pinned on Opus 4.5, it is extremely difficult to tell ap…
These threads are always full of superstitious nonsense. Had a bad week at the AIs? Someone at Anthropic must have nerfed the model! The roulette wheel isn't rigged, sometimes you're just unlucky. Try another spin, maybe you'll do better. Or just write your own code.
Sorry but this is a ridiculous comment. It's not magic. There are countless levers that can be changed and ARE changed to affect quality and cost, and it's known that compute is scarce.
We aren't superstitious, you are just ignorant.
Re: Claude Opus 4.7
#664> We stated that we would keep Claude Mythos Preview’s release limited and test new cyber safeguards on less capable models first. Opus 4.7 is the first such model: its cyber capabilities are not as advanced as those of Mythos Preview (indeed, during its training we experimented with efforts to differentially reduce these capabilities). We are releasing Opus 4.7 with safeguards that automatically detect and block req…
I feel it’s fine as a short term solution, and probably a good thing. Gives the good guys some time to stay on top.
Always remember: a defender must succeed every time , an attacker only once.
Re: Claude Opus 4.7
#665Anthropic's weird obsession with malware now means that Opus 4.7 checks if every file is malware, even markdown files, before working.
Re: Claude Opus 4.7
#666It seems a little more fussy than Opus 4.6 so far. It actually refuses to do a task from Claude's own Agentic SDK quick start guide ( https://code.claude.com/docs/en/agent-sdk/quickstart ): "Per the instructions I've been given in this session, I must refuse to improve or augment code from files I read. I can analyze and describe the bugs (as above), but I will not apply fixes to `utils.py`."
Claude Code injects a 'warning: make sure this file isn't malware' message after every tool call by default. It seems like 4.7 is over-attending to this warning. @bcherny, filed a bug report feedback ID: 238e5f99-d6ee-45b5-981d-10e180a7c201
Isn't that kind of nuts?
They can't even properly beta test their new releases?
Re: Claude Opus 4.7
#667Early benchmark results on our private complex reasoning suite: https://gertlabs.com/?mode=agentic_coding Opus 4.7 is more strategic, more intelligent, and has a higher intelligence floor than 4.6 or 4.5. It's roughly tied with GPT 5.4 as the frontier model for one-shot coding reasoning, and in agentic sessions with tools, it IS the best, as advertised (slightly edging out Opus 4.5, not a typo). We're still running m…
Do your benchmark results indicate any level of regression on Opus 4.6 or 4.5 since their first release?
Re: Claude Opus 4.7
#668OK 4.7 is a different animal altogether.
- no longer a 10 year old autistic programming genius, but a confident programming genius basically taking the lead on what to do and truly putting you in your place. Slightly impatient but surprisingly confident, much more detailed in the tasks he does and double checks his work on the fly.
- very little to no need to ask, have you rememebered to do this and that, its done.
- also tells you which task he is doing next, rather than asking which task would you like him to do next
- very different engagement with the user
Surprisingly interesting, truly now leading the developer rather than guiding
Re: Claude Opus 4.7
#669Sigh here we go again, model release day is always the worst day of the quarter for me. I always get a lovely anxiety attack and have to avoid all parts of the internet for a few days :/
I felt this way from a year ago up until February 2026. Claude Code and Codex becoming the norm cemented for me that a lot of the projects people are working on (including mine) are totally obsolete. As far as I'm concerned, most code is now abstracted away, and people only want better agents - not traditional software products, except as infrastructure or platforms.
It also looks like the final form of the AI roll-out: whatever the model or application, this is the era of agents, and probably in the near-future mostly automated agents. We'll see an overflow of bespoke automation and in-house agents doing everything from personal task management to enterprise business processes, so releasing a "Personal Fitness Tracker" or a "CRO Auditor" in 2026 doesn't make any sense.
All of my anxiety around it has evaporated because I can see what it actually is: an ouroboros of AI output generating automation of more AI output. What most software engineers will be working on now is guiding that output, making it easier to inspect/configure it, optimizing it, and improving the consumer and developer experience.
Otherwise, we just have to drop our old concepts for projects and work on something else.
For the consumer the floor is rising, and for the experienced developer the ceiling is rising. I personally hate web dev anyway, and I'm glad I can work on interesting engineering problems (even with the help of an AI) instead of having to manually stitch together yet another REST API, or website, or service pipeline.
Re: Claude Opus 4.7
#670Earlier quoted context omitted.
Its especially concerning / frustrating because boris’s reply to my bug report on opus being dumber was “we think adaptive thinking isnt working” and then thats the last I heard of it: https://news.ycombinator.com/item?id=47668520 Now disabling adaptive thinking plus increasing effort seem to be what has gotten me back to baseline performance but “our internal evals look good“ is not good enough right now for what ma…
This matches my experience as well, "adaptive thinking" chooses to not think when it should.
I think this might be an unsolved problem. When GPT-5 came out, they had a "router" (classifier?) decide whether to use the thinking model or not.
It was terrible. You could upload 30 pages of financial documents and it would decide "yeah this doesn't require reasoning." They improved it a lot but it still makes mistakes constantly.
I assume something similar is happening in this case.