GPT-5.2 - Hacker News

Posted by atgctg 12/11/2025

GPT-5.2(openai.com)

https://platform.openai.com/docs/guides/latest-model

System card: https://cdn.openai.com/pdf/3a4153c8-c748-4b71-8e31-aecbde944...

1195 points | 1083 commentspage 12

stopachka 12/12/2025|

For those curious about the question: "how well does GPT 5.2 build Counter Strike?"

We tried the same prompts we asked previous models today, and found out [1].

The TL:DR: Claude is still better on the frontend, but 5.2 is comparable to Gemini 3 Pro on the backend. At the very least 5.2 did better on just about every prompt compared to 5.1 Codex Max.

The two surprises with the GPT models when it comes to coding: 1. They often use REPLs rather than read docs 2. In this instance 5.2 was more sheepish about running CLI commands. It would instead ask me to run the commands.

Since this isn't a codex fine-tuned model, I'm definitely excited to see what that looks like.

[1] The full video and some details in the tweet here: https://x.com/instant_db/status/1999278134504620363

matt3210 12/12/2025||

Can this be used without uploading my code base to their server?

loa_observer 12/12/2025||

does the model really improve? i tried several tasks today, and most of them failed, which are super easy ones.

maybe it's just because the gpt5.2 in cursor is super stupid?

DeathArrow 12/11/2025||

Pricing is the same?

tedsanders 12/11/2025|

ChatGPT pricing is the same. API pricing is +40% per token, though greater token efficiency means that cost per task is not always that much higher. On some agentic evals we actually saw costs per task go down with GPT-5.2. It really depends on the task though; your mileage may vary.

ComputerGuru 12/11/2025||

How long have you been previewing 5.2?

gigatexal 12/11/2025||

So how much better is it than opus or Gemini ?

daviding 12/11/2025||

gpt-5.2 and gpt-5.2-chat-latest the same token price? Isn't the latter non-thinking and more akin to -nano or -mini?

dalemhurley 12/11/2025|

No. It is the same model without reasoning.

daviding 12/11/2025||

So is maybe gpt-5.2 with reasoning set to 'none' identical to gpt-5.2-chat-latest in capabilities but perhaps with a different system (system) prompt? I notice chat-latest doesn't accept temperature or reasoning (which makes sense) parameters, so something is certainly different underneath?

vishal_new 12/12/2025||

Hmmm, is there any insight if these are really getting much better at coding? Will hand coding be dead within a few years, just human typing in english?

psychoslave 12/12/2025|

Mia espero estas ke ne, ni nur parolos home inter homoj, robotoj anticipe faros servutoj por taŭge fari niajn dezirojn realigi laŭ niaj faktaj bezonoj. Kompreneble ni ĉiuj flue parolos Esperanto por taga geopolitikaj internaciaj aferoj, kaj ia ajn alia lingvo kiu plaĉas al mi por aliaj aferoj.

Estonteco estas hela, miaj karaj siboj.

SilverElfin 12/11/2025|

Is the training cutoff date known?

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