₦airaland Forum

OpenAI has just released GPT-4.5, a new version of its flagship large language model. The company claims it is its biggest and best model for all-round chat yet. “It’s really a step forward for us,” says Mia Glaese, a research scientist at OpenAI.

Since the releases of its so-called reasoning models o1 and o3, OpenAI has been pushing two product lines. GPT-4.5 is part of the non-reasoning line-up, what Glaese’s colleague Nick Ryder, also a research scientist, calls “an installment in the classic GPT series.”

People with a $200-a-month ChatGPT Pro account can try out GPT-4.5 today. OpenAI says it will begin rolling out to other users next week.

The last few generations of OpenAI’s GPT models have shown that bigger mean better performance. But there is now a lot of talk about how that approach is hitting a wall—including from OpenAI’s former chief scientist Ilya Sutskever. The company’s claims about GPT-4.5 feel like a thumb in the eye to the naysayers.

All large language models pick up patterns across the billions of documents they are trained on. Smaller models learned syntax and basic facts. Bigger models can find more specific patterns like emotional cues, such as when a speaker’s words signal hostility, says Ryder: “All of these subtle patterns that come through a human conversation—those are the bits that these larger and larger models will pick up on.”

“It has the ability to engage in warm, intuitive, natural, flowing conversations,” says Glaese. “And we think that it has a stronger understanding of what users mean, especially when their expectations are [a] bit more implicit, leading to nuanced and thoughtful responses.”

“We kind of know what the engine looks like at this point and now it’s really about making it hum,” says Ryder. “This is primarily an exercise in scaling up the compute, scaling up the data, finding more efficient training methods, and then pushing the frontier.”

OpenAI won’t say exactly how big its new model is. But says the jump in scale from GPT-4o to GPT-4.5 is the same as GPT-3.5 to GPT-4o. Experts have estimated that GPT-4 could have as many as 1.8 trillion parameters, the values that get tweaked when a model is trained.

GPT-4.5 was trained using similar techniques to its predecessor GPT-4o, including human-led fine-tuning and reinforcement learning with human feedback.

“The key to creating intelligent systems is a recipe we’ve been following for many years, which is to find scalable paradigms where we can pour more and more resources into get more intelligent systems,” says Ryder.

Unlike reasoning models like o1 and o3, which work through answers step by step, “classic” large language models like GPT-4.5 spit out the first response they come up with. But GPT-4.5 is more general-purpose. Tested on SimpleQA, a kind of general-knowledge quiz developed by OpenAI last year that includes questions on a wide range of topics, from science and technology to TV shows and video games, GPT-4.5 scores 62.5% compared to 38.6% for GPT-4o and 15% for o3-mini.

What’s more, the rate at which the models respond with made-up answers (known as hallucination) on this test was 37.1% for GPT-4.5, 59.8% for GPT-4o, and 80.3% o3-mini.

But on other benchmarks, including MMLU, a standard test for multimodal language models, gains on OpenAI’s previous models were marginal. And on standard science and math benchmarks, GPT-4.5 scores worse than o3.

GPT-4.5’s special charm seems to be in its conversation. Human testers employed by OpenAI say they preferred GPT-4.5’s answers to GPT-4o for everyday queries, professional queries and creative tasks, including coming up with poems. (Ryder says it is also great at old-school internet ACSII art.)

But after years at the top, OpenAI now has a tough crowd. “The focus on emotional intelligence and creativity is cool for niche use cases like writing coaches, brainstorming buddies,” says Waseem AlShikh, cofounder and CTO of Writer, a startup that develops large language models for enterprise customers.

“But GPT-4.5 feels like a shiny new coat of paint on the same old car,” he says. “Throwing more compute and data at a model can make it sound smoother, but it’s not a game-changer.”

“The juice isn’t worth the squeeze when you consider the energy costs, the complexity, and the fact that most users won’t notice the difference in daily use,” he says. “I’d rather see them pivot to efficiency or niche problem-solving than keep supersizing the same recipe.”

“GPT-4.5 is OpenAI phoning it in while they cook up something bigger behind closed doors. Until then, this feels like a pit stop.”

Sam Altman has said that GPT-4.5 will be the last release in OpenAI’s classic line up and that GPT-5 will be a hybrid that combines a general-purpose large language model with a reasoning model.

https://www.google.com/amp/s/www.technologyreview.com/2025/02/27/1112619/openai-just-released-gpt-4-5-and-says-it-is-its-biggest-and-best-chat-model-yet/amp/


Sam Altman writes;

GPT-4.5 is ready!

good news: it is the first model that feels like talking to a thoughtful person to me. i have had several moments where i've sat back in my chair and been astonished at getting actually good advice from an AI.

bad news: it is a giant, expensive model. we really wanted to launch it to plus and pro at the same time, but we've been growing a lot and are out of GPUs. we will add tens of thousands of GPUs next week and roll it out to the plus tier then. (hundreds of thousands coming soon, and i'm pretty sure y'all will use every one we can rack up.)

this isn't how we want to operate, but it's hard to perfectly predict growth surges that lead to GPU shortages.

a heads up: this isn’t a reasoning model and won’t crush benchmarks. it’s a different kind of intelligence and there’s a magic to it i haven’t felt before. really excited for people to try it!

https://x.com/sama/status/1895203654103351462

Deepseekers be like....

COMRADES, if Deepseek doesn’t compete aggressively, OpenAi will rubbish them with manipulation especially during Trump's tenure

Weldone.

So, what's the place of goik or what's the name of the one produced by X

2025 is AI year

I’ll keep using the free versions

Wow!

Earlier in the news today: someone got scammed after engaging in an online romance with an AI generated lady.

I am available for your correct and error-free Yoruba-English translation.

I also subtitle films and videos. Contact me on Whatsapp 08i3 two 232 9 eight 9.

Wow. Thank you chatgpt-My personal assistant

OpenAI is quietly building GPT-5, the real game-changer that will end this world.

Beware! ❌

AI people want to adopt Apple company method of needless release of models

It is an advantage to smart people.

LIKE SEY E DEY GIVE FREE FVCK

Very soon human brain would be in futility

Digital world
We need AI from dark web

I KNOW SEY IF DEM GIVE NAIRALAND BOYZ CHANCE DEM GO FVCKAM

Less stress for the human brain—I want a phone that operates entirely through AI, requiring no human touch, just communication to handle everything.

Yesterday, I prompted GPT and Deepseek, I confused the one to select.

Ai making improvements.

Open AI to the World....the game changer

[color=#1986BC] Deepseek is the best, forget....[/color]

Bb

We are still here healing the blind and rasing the dead in Zion and Redeem

iichidodo:
[color=#1986BC] Deepseek is the best, forget....[/color]

Very poor. Deepseek is very poor in all ramifications. Their interface poor
They hv lots of work to do

Those Chinese geeks are watching on 8K resolution screen now. .

They will soon break down all it's features, and create a better version of it next few months.

Streetdoctor:
Very poor. Deepseek is very poor in all ramifications. Their interface poor
They hv lots of work to do

[color=#1986BC] Deepseek is next level and it's freeeeeee...[/color]

iichidodo:
[color=#1986BC] Deepseek is next level and it's freeeeeee...[/color]

Forget about d free stuff. They hv a lot of work to do. Secondly, they wont even give u information about chinese leader

Streetdoctor:
Forget about d free stuff. They hv a lot of work to do. Secondly, they wont even give u information about chinese leader

Deep seek is just not free but it’s open access with open weights. You can build on it and make it anything you want. It’s just like an android software that several companies can build their applications on. There is nothing like that out there.

canalily:
Very soon human brain would be in futility

Humans are actually supposed to be thinkers,
innovators and creators, not workers.

iichidodo:
[color=#1986BC] Deepseek is next level and it's freeeeeee...[/color]

Grok is better ,free deepseek server keeps being busy ,free chatgpt is no longer smart as before ...Co pilot is good but can't take long words ,Gemini is like Co pilot .

Streetdoctor:
Forget about d free stuff. They hv a lot of work to do. Secondly, they wont even give u information about chinese leader

What do you need information about Chinese leader for?

If you are using LLM be it Deepseek or CGPT to look up information for Chinese leader then you are not a serious person.
Typical Nigerians that use their laptop to watch only movies

Melagros:
COMRADES, if Deepseek doesn’t compete aggressively, OpenAi will rubbish them with manipulation especially during Trump's tenure

China will just pack their load and go for good.