Discussion on blog post: https://openai.com/index/introducing-gpt-5-2/ (https://news.ycombinator.com/item?id=46234874)
GPT-5.2
141–150 of 1001 posts
Re: GPT-5.2
#142It's actually more expensive than GPT-5.1. I've gotten used to prices going down with each latest model, but this time it's gone up. https://platform.openai.com/docs/pricing
Gemini 3 Pro Preview also got more expensive than 2.5 Pro.
2.5 Pro: $1.25 input, $10 output (million tokens)
3 Pro Preview: $2 input, $12 output (million tokens)
Re: GPT-5.2
#143Man this was rushed, typo in the first section: > Unlike the previous GPT-5.1 model, GPT-5.2 has new features for managing what the model "knows" and "remembers to improve accuracy.
Also, did they mention these features? I was looking out for it but got to the end and missed it.
(No, I just looked again and the new features listed are around verbosity, thinking level and the tool stuff rather than memory or knowledge.)
Re: GPT-5.2
#144Slight increase in model cost, but looks like benefits across the board to match. gpt-5.2 $1.75 $0.175 $14.00 gpt-5.1 $1.25 $0.125 $10.00
In what world is that a slight increase?
Re: GPT-5.2
#145Earlier quoted context omitted.
We're also in benchmark saturation territory. I heard it speculated that Anthropic emphasizes benchmarks less in their publications because internally they don't care about them nearly as much as making a model that works well on the day-to-day
how do you quantitatively measure day-to-day quality? only thing i can think is A/B tests which take a while to evaluate
more or less this, but also synthetic
if you think about GANs, it's all the same concept
1. train model (agent)
2. train another model (agent) to do something interesting with/to the main model
3. gain new capabilities
4. iterate
You can use a mix of both real and synthetic chat sessions or whatever you want your model to be good at. Mid/late training seems to be where you start crafting personality and expertises.
Getting into the guts of agentic systems has me believing we have quite a bit of runway for iteration here, especially as we move beyond single model / LLM training. I still need to get into what all is de jour in the RL / late training, that's where a lot of opportunity lies from my understanding so far
Nathan Lambert (https://bsky.app/profile/natolambert.bsky.social) from Ai2 (https://allenai.org/) & RLHF Book (https://rlhfbook.com/) has a really great video out yesterday about the experience training Olmo 3 Think
Re: GPT-5.2
#146It's actually more expensive than GPT-5.1. I've gotten used to prices going down with each latest model, but this time it's gone up. https://platform.openai.com/docs/pricing
Previous model's prices usually go down, but their flagship has always been the most expensive one.
Re: GPT-5.2
#147Wish they would include or leak more info about what this is, exactly. 5.1 was just released, yet they are claiming big improvements (on benchmarks, obviously). Did they purposely not release the best they had to keep some cards to play in case of Gemini 3 success or is this a tweak to use more time/tokens to get better output, or what?
I'm guessing they were waiting to figure out more efficient serving before a release, and have decided to eat the inference cost temporarily to stay at the frontier.
Re: GPT-5.2
#148Slight increase in model cost, but looks like benefits across the board to match. gpt-5.2 $1.75 $0.175 $14.00 gpt-5.1 $1.25 $0.125 $10.00
In particular, the API pricing for GPT-5.2 Pro has me wondering what on earth the possible market for that model is beyond getting to claim a couple of percent higher benchmark performance in press releases. >Input: >$21.00 / 1M tokens >Output: >$168.00 / 1M tokens That's the most "don't use this" pricing I've seen on a model. https://openai.com/api/pricing/
Less an issue if your company is paying
Re: GPT-5.2
#149Slight increase in model cost, but looks like benefits across the board to match. gpt-5.2 $1.75 $0.175 $14.00 gpt-5.1 $1.25 $0.125 $10.00
In particular, the API pricing for GPT-5.2 Pro has me wondering what on earth the possible market for that model is beyond getting to claim a couple of percent higher benchmark performance in press releases. >Input: >$21.00 / 1M tokens >Output: >$168.00 / 1M tokens That's the most "don't use this" pricing I've seen on a model. https://openai.com/api/pricing/
gpt-4-32k pricing was originally $60.00 / $120.00.
Re: GPT-5.2
#150Earlier quoted context omitted.
Does elevenlabs have a real-time conversational voice model? It seems like like their focus is largely on text to speech and speech to text. Which can approximate that type of thing but it's not at all the same as the native voice to voice that 4o does.
> Does elevenlabs have a real-time conversational voice model? Yes. > It seems like like their focus is largely on text to speech and speech to text. They have two main broad offerings (“Platforms”); you seem to be looking at what they call the “Creative Platform”. The real-time conversational piece is the centerpiece of the “Agents Platform”.
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