GPT-5.6 • Hacker News Board

Re: GPT-5.6

#511

Post by RhodesianHunter » Thu, Jul 09, 2026, 8:21 PM UTC

goodmattg wrote: post #353

I flip back and forth between whoever currently has the more powerful frontier model that isn't cost prohibitive - subscriptions only, API pricing a non-starter. Today that's Fable 5 which has been excellent, as soon as it's Sol I'll switch to that. The OAI/Anthropic harness behavior has mostly stabilized for me with consistent AGENTS.md that I sync with CLAUDE.md - I like pi (pi.dev) and have tried to build it up to…

> My feeling is we're still in the Uber era subsidy period

I often wonder whether this doesn't continue indefinitely.

Uber was able to do this because it was just them and Lyft playing second fiddle, with a huge barrier to entry once the network effects had kicked in.

It just seems like the model space has way too many competitors, + OSS/Local options for them to ever be able to jack up their prices. At least once the datacenter bottleneck has been cleared.

Re: GPT-5.6

#512

Post by esafak » Thu, Jul 09, 2026, 8:22 PM UTC

culi wrote: post #150

I_am_tiberius wrote: post #108

The way they talk about cyber security fixes makes clear that they are in bed with the government in order to get ahead of Anthropic.

All of them closely collaborate with the government. LLMs are a national security priority and are vetted. Claude AI was used by Palantir's Maven to target the Minab school that led to a triple tap strike killing over 150 schoolchildren.

The DIA's Maven database was out of date: https://www.theguardian.com/news/2026/mar/26/ai-got-the-blam...

Re: GPT-5.6

#513

Post by SatvikBeri » Thu, Jul 09, 2026, 8:22 PM UTC

Syntaf wrote: post #6

Ok long time Claude Code user here; lately I've started to realize there's other great models out there I should be trying, but I'm hesitant to leave Claude Code behind for something new. What's the consensus today on codex vs claude code, does it really matter anymore?

It's trivial to try another agent. You can spend $20 for a monthly subscription and ask it to import all your settings from Claude Code.

Re: GPT-5.6

#514

Post by mattnewton » Thu, Jul 09, 2026, 8:23 PM UTC

derefr wrote: post #303

anticorporate wrote: post #141

Earlier quoted context omitted.

It seems like the way brevity instructions have changed is mis-aligned with how most people would expect to use them or are currently using them. Here's the example they give: > Instead of asking for the shortest possible answer, replace brevity instructions with prioritization: > Lead with the conclusion. Include the evidence needed to support it, any material caveat, and the next action. Omit secondary detail and r…

> Lead with conclusion. I would presume (perhaps falsely?) that an instruction like this would lead to the model presenting a conclusion not supported by the evidence, and potentially backtracking as it then tries to justify said conclusion. Yes, if deliberation happens, the model should figure out what it wants to say during that phase; but if you're using auto mode, the model is not going to be doing any deliberati…

This was a big concern for earlier models, but with modern CoT trained models they should be able to come to the conclusion entirely in the thinking trace.

Re: GPT-5.6

#515

Post by navigate8310 » Thu, Jul 09, 2026, 8:24 PM UTC

10xDev wrote: post #234

meetpateltech wrote: post #154

GPT-5.6 Sol sets a new SOTA on ARC-AGI-3: 7.8% Sol is the first verified frontier model to ever beat an ARC-AGI-3 game https://arcprize.org/results/openai-gpt-5-6

Seeing the dramatic differences in scores just going from high to xhigh is just another demonstration of the bitter lesson: Just keep scaling search and learning. We are probably going to need a lot more GPUs.

There goes my plan to buy a PC for the next decade

Re: GPT-5.6

#516

Post by ciefa » Thu, Jul 09, 2026, 8:26 PM UTC

senko wrote: post #439

I love testing the new models by asking them to code a toy RTS game. Here's what Terra did: https://senko.net/vibecode-bench/2026/rts-gpt-5.6-terra.html (one try, in codex app, xhigh effort) Comparing this to other models, I find it similar to GPT-5.5 and a bit behind Sonnet 5. You can see how other models fared here: https://senko.net/vibecode-bench/ (you can also fetch the prompt and the the 5.6 Terra resulting cod…

Very neat! Can't wait for the Sol version!

Re: GPT-5.6

#517

Post by simianwords » Thu, Jul 09, 2026, 8:26 PM UTC

GPT Terra is 50% cheaper than 5.5 while being more performant. So it’s like a straight up 50% reduction in cost!

That leads me to a question. Why wouldn’t they just default to terra in ChatGPT in the last few months? If they didn’t then they burnt money for no reason by giving a shittier model at a higher price

Re: GPT-5.6

#518

Post by gorgmah » Thu, Jul 09, 2026, 8:27 PM UTC

Anyone else noticed the "Extended: Fable 5 is included in your weekly limit through July 12 blablabla" disappeared from claude code? Did they panic-delete the july 12th deadline ?

Re: GPT-5.6

#519

Post by ciefa » Thu, Jul 09, 2026, 8:27 PM UTC

rsoto2 wrote: post #493

senko wrote: post #439

I love testing the new models by asking them to code a toy RTS game. Here's what Terra did: https://senko.net/vibecode-bench/2026/rts-gpt-5.6-terra.html (one try, in codex app, xhigh effort) Comparing this to other models, I find it similar to GPT-5.5 and a bit behind Sonnet 5. You can see how other models fared here: https://senko.net/vibecode-bench/ (you can also fetch the prompt and the the 5.6 Terra resulting cod…

So the measure of a model is how well they can recreate something they easily have thousands of examples of in their training data. There's probably a better base RTS on github somewhere for free.

>There's probably a better base RTS on github somewhere for free.

I... I think you are missing the point.

Re: GPT-5.6

#520

Post by jrflo » Thu, Jul 09, 2026, 8:29 PM UTC

HarHarVeryFunny wrote: post #467

Not specific to OpenAI / Codex, but I'm curious what people are doing to protect themselves from any destructive actions by their coding agents? Just install and pray? Explicity approve all actions? Reconfigure for safety? Run in a sandbox (Docker) ?

What destructive actions are you afraid of in particular? Honestly the models are pretty smart, I let the agents go --yolo and nothing bad has ever happened (yet) that couldn't be solved with git.