Claude Opus 4.7 • Hacker News Board

Re: Claude Opus 4.7

#471

Post by blazespin » Thu, Apr 16, 2026, 5:36 PM UTC

puppystench wrote: post #364

simonw wrote: post #203

I'm finding the "adaptive thinking" thing very confusing, especially having written code against the previous thinking budget / thinking effort / etc modes: https://platform.claude.com/docs/en/build-with-claude/adapti... Also notable: 4.7 now defaults to NOT including a human-readable reasoning token summary in the output, you have to add "display": "summarized" to get that: https://platform.claude.com/docs/en/build-…

Does this mean Claude no longer outputs the full raw reasoning, only summaries? At one point, exposing the LLM's full CoT was considered a core safety tenet.

Safety versus Distillation, guess we see what's more important.

Re: Claude Opus 4.7

#472

Post by vintermann » Thu, Apr 16, 2026, 5:37 PM UTC

DrammBA wrote: post #384

puppystench wrote: post #364

Earlier quoted context omitted.

Does this mean Claude no longer outputs the full raw reasoning, only summaries? At one point, exposing the LLM's full CoT was considered a core safety tenet.

Anthropic always summarizes the reasoning output to prevent some distillation attacks

Attacks? That's a choice of words.

Re: Claude Opus 4.7

#473

Post by WarmWash » Thu, Apr 16, 2026, 5:38 PM UTC

ambigioz wrote: post #214

So many messages about how Codex is better then Claude from one day to the other, while my experience is exactly the same. Is OpenAI botting the thread? I can't believe this is genuine content.

In the gemini subreddit there is a persistent problem with bots posting "Gemini sucks, I switched to Claude" and then bots replying they did the same.

Old accounts with no posts for a few years, then suddenly really interested in talking up Claude, and their lackeys right behind to comment.

Not even necessarily calling out Anthropic, many fan boys view these AI wars as existential.

Re: Claude Opus 4.7

#474

Post by robeym » Thu, Apr 16, 2026, 5:40 PM UTC

Assuming /effort max still gets the best performance out of the model (meaning "ULTRATHINK" is still a step below /effort max, and equivalent to /effort high), here is what I landed on when trying to get Opus 4.7 to be at peak performance all the time in ~/.claude/settings.json:

  {
    "env": {
      "CLAUDE_CODE_EFFORT_LEVEL": "max",
      "CLAUDE_CODE_DISABLE_BACKGROUND_TASKS": "1"
    }
  }

The env field in settings.json persists across sessions without needing /effort max every time.

I don't like how unpredictable and low quality sub agents are, so I like to disable them entirely with disable_background_tasks.

Re: Claude Opus 4.7

#475

Post by dakolli » Thu, Apr 16, 2026, 5:41 PM UTC

vintagedave wrote: post #228

buildbot wrote: post #12

Too late, personally after how bad 4.6 was the past week I was pushed to codex, which seems to mostly work at the same level from day to day. Just last night I was trying to get 4.6 to lookup how to do some simple tensor parallel work, and the agent used 0 web fetches and just hallucinated 17K very wrong tokens. Then the main agent decided to pretend to implement tp, and just copied the entire model to each node...

Same. I stopped my Pro subscription yesterday after entering the week with 70% of my tokens used by Monday morning (on light, small weekend projects, things I had worked on in the past and barely noticed a dent in usage.) Support was... unhelpful. It's been funny watching my own attitude to Anthropic change, from being an enthusiastic Claude user to pure frustration. But even that wasn't the trigger to leave, it was…

Its funny watching llm users act like gamblers. Every other week swearing by one model and cursing another, like a gambler who thinks a certain slot machine, or table is cold this week. These llm companies are literally building slot machine mechanics into their ui interfaces too, I don't think this phenomenon is a coincidence.

Stop using these dopamine brain poisoning machines, think for yourself, don't pay a billionaire for their thinking machine.

Re: Claude Opus 4.7

#476

Post by malfist » Thu, Apr 16, 2026, 5:41 PM UTC

trueno wrote: post #455

noticing sharp uptick in "i switched to codex" replies lately. a "codex for everything" post flocking the front page on the day of the opus 4.7 release me and coworker just gave codex a 3 day pilot and it was not even close to the accuracy and ability to complete & problem solve through what we've been using claude for. are we being spammed? great. annoying. i clicked into this to read the differences and initial exp…

I don't know, I think java is the best programming language. I use it for everything I do, no other programming language comes close. Python lost all my trust with how slow it's interpreter is, you can't use it for anything.

^^^^ Sarcastic response, but engineers have always loved their holy wars, LLM flavor is no different.

Re: Claude Opus 4.7

#477

Post by stavros » Thu, Apr 16, 2026, 5:42 PM UTC

gghootch wrote: post #270

cupofjoakim wrote: post #20

> Opus 4.7 uses an updated tokenizer that improves how the model processes text. The tradeoff is that the same input can map to more tokens—roughly 1.0–1.35× depending on the content type. caveman[0] is becoming more relevant by the day. I already enjoy reading its output more than vanilla so suits me well. [0] https://github.com/JuliusBrussee/caveman/tree/main

Caveman is fun, but the real tool you want to reduce token usage is headroom https://github.com/gglucass/headroom-desktop (mac app) https://github.com/chopratejas/headroom (cli)

I tried to use rtk for the same, and my agent session would just loop the same tool call over and over again. Does headroom work better?

Re: Claude Opus 4.7

#478

Post by markrogersjr » Thu, Apr 16, 2026, 5:42 PM UTC

simonw wrote: post #203

I'm finding the "adaptive thinking" thing very confusing, especially having written code against the previous thinking budget / thinking effort / etc modes: https://platform.claude.com/docs/en/build-with-claude/adapti... Also notable: 4.7 now defaults to NOT including a human-readable reasoning token summary in the output, you have to add "display": "summarized" to get that: https://platform.claude.com/docs/en/build-…

CLAUDE_CODE_DISABLE_ADAPTIVE_THINKING=1 claude…

Re: Claude Opus 4.7

#479

Post by farrisbris » Thu, Apr 16, 2026, 5:43 PM UTC

corlinp wrote: post #194

I'm running it for the first time and this is what the thinking looks like. Opus seems highly concerned about whether or not I'm asking it to develop malware. > This is _, not malware. Continuing the brainstorming process. > Not malware — standard _ code. Continuing exploration. > Not malware. Let me check front-end components for _. > Not malware. Checking validation code and _. > Not malware. > Not malware.

> Plan confirmed. Not malware — it's my own design doc. Let me quickly check proto and dependencies I'll need.

Re: Claude Opus 4.7

#480

Post by tmaly » Thu, Apr 16, 2026, 5:44 PM UTC

I am waiting for the 2x usage window to close to try it out today.

If they are charging 2x usage during the most important part of the day, doesn't this give OpenAI a slight advantage as people might naturally use Codex during this period?