GPT-4 (Jun 2023)

Closed weights OpenAI 1.8T parameters June 2023

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
OpenAI
Organisation type
Industry
Country
United States of America
Published
13 June 2023
Authors
OpenAI, Josh Achiam, Steven Adler, Sandhini Agarwal, Lama Ahmad, Ilge Akkaya, Florencia Leoni Aleman, Diogo Almeida, Janko Altenschmidt, Sam Altman, Shyamal Anadkat, Red Avila, Igor Babuschkin, Suchir Balaji, Valerie Balcom, Paul Baltescu, Haiming Bao, Mohammad Bavarian, Jeff Belgum, Irwan Bello, Jake Berdine, Gabriel Bernadett-Shapiro, Christopher Berner, Lenny Bogdonoff, Oleg Boiko, Madelaine Bo…

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Multimodal, Language, Vision
Task
Language modeling, Language modeling/generation, Question answering, Visual question answering
Approach
Self-supervised learning
Base model
GPT-4 (Mar 2023)

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Parameters
1.8T

Rumored to be 1.8T parameter MoE with 280B activated on the forward pass, per https://www.semianalysis.com/p/gpt-4-architecture-infrastructure. Other sources estimate 1.76T with 220B per forward pass https://web.archive.org/web/20230712123915/https://the-decoder.com/gpt-4-architecture-datasets-costs-and-more-leaked/

Training data
5,416,666,666,667 tokens

Speculative. Reported secondhand by online sources such as Semianalysis, but not verified by OpenAI. If total number of tokens seen was 13T, text was repeated for 2 epochs, and text was the majority of tokens, then dataset size roughly is 13T*0.75/2 = 4.9T words. Note this examines only the text dataset, since GPT-4 was first and foremost a language model. However, the vision component had its own vision dataset, which we believe accounted for a much smaller part of the compute budget.

Epochs
2
Batch size
60,000,000

MoE so i hesitate but 7.5 mill? https://www.reddit.com/r/mlscaling/comments/14wcy7m/gpt4s_details_are_leaked/#:~:text=There%20is%20millions%20of%20rows,get%20the%20real%20batch%20size.

Training compute

The arithmetic performed to train the model, measured in floating-point operations. It is a measure of what the training run cost, not of how fast the finished model answers you.

Training compute
2.1 × 10²⁵ FLOP

90% CI: 8.2E+24 to 4.4E+25 NOTE: this is a rough estimate based on public information, much less information than most other systems in the database. Calculation and confidence intervals here: https://colab.research.google.com/drive/1O99z9b1I5O66bT78r9ScslE_nOj5irN9?usp=sharing

How it was established
Hardware

The training run

What it physically took to train: which chips, how many, for how long, and what that drew from the wall.

Training hardware
NVIDIA A100 SXM4 40 GB
Chips used
25,000
Chip-hours
57,000,000
Wall-clock time
2,280 hours (95 days)

(Speculative) SemiAnalysis conjectures that GPT-4 training took 90-100 days with utilization of 32-36%.

Hardware utilisation
MFU 34.0%

CANNOT VERIFY, LIKELY HFU, PAYWALLED. (Speculative) SemiAnalysis conjectures that GPT-4 had utilization of 32-36%: https://www.semianalysis.com/p/gpt-4-architecture-infrastructure

Power draw
19.9 MW

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
API access
Training code
Unreleased

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Frontier model
Yes
Foundation model
Yes
Likely above 10²³ FLOP
Yes
Why it is tracked
Highly cited,SOTA improvement,Training cost

See the paper, p.1: "On a suite of traditional NLP benchmarks, GPT-4 outperforms both previous large language models and most state-of-the-art systems (which often have benchmark-specific training or hand-engineering)." "On the MMLU benchmark [35, 36], an English-language suite of multiple-choice questions covering 57 subjects, GPT-4 not only outperforms existing models by a considerable margin in English, but also demonstrates strong performance in other languages"

Record confidence
Likely
Citations
24,490

Sources

Where this record came from and when it was last checked.

Reference
GPT-4 Technical Report
Last updated
24 June 2026

What the numbers mean

What this model is

GPT-4 (Jun 2023) was published by OpenAI, in the country recorded as United States of America, during June 2023. It comes out of an organisation categorised as industry.

It works in the domain of Multimodal, Language, Vision, and is recorded as performing the task of language modeling, Language modeling/generation, Question answering, Visual question answering.

It builds on GPT-4 (Mar 2023). That is why it shares the base model's general shape and size.

Its weights were never published, so it can only be reached through its provider. No graphics card changes that.

How it was trained

The training run consumed about 2.1 × 10²⁵ FLOP, on hardware recorded as NVIDIA A100 SXM4 40 GB. That figure measures what producing the model cost, and has no bearing on how fast it answers.

Training consumed a corpus of around 5,416,666,666,667 tokens of text.

It is tracked in the underlying dataset for one reason in particular: highly cited,SOTA improvement,Training cost.

Answers

GPT-4 (Jun 2023) — common questions

01

GPT-4 (Jun 2023)— when was it released?

It was published in June 2023. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

02

GPT-4 (Jun 2023)— what is it used for?

It works in the domain of Multimodal, Language, Vision, and is recorded as handling the task of language modeling, Language modeling/generation, Question answering, Visual question answering. A model can carry several of each, so these are the areas it was built for rather than a limit on what it will attempt.

03

GPT-4 (Jun 2023)— how much compute was used to train it?

Training consumed around 2.1 × 10²⁵ FLOP, on hardware recorded as NVIDIA A100 SXM4 40 GB. That measures what producing the model cost and says nothing about how quickly it answers once trained — inference speed comes from memory bandwidth, not from the training budget.

04

GPT-4 (Jun 2023)— what GPU do I need to run it?

None. This is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

05

GPT-4 (Jun 2023)— is it open source?

No. Its weights have not been published, so it exists only as a service controlled by its owner.

06

GPT-4 (Jun 2023)— how many parameters does it have?

It has a parameter count of 1.8T. Rumored to be 1.8T parameter MoE with 280B activated on the forward pass, per https://www.semianalysis.com/p/gpt-4-architecture-infrastructure. Other sources estimate 1.76T with 220B per forward pass https://web.archive.org/web/20230712123915/https://the-decoder.com/gpt-4-architecture-datasets-costs-and-more-leaked/. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.

07

GPT-4 (Jun 2023)— who created it?

It was published by OpenAI, based in United States of America, an organisation categorised as industry.

Source

Original publication

Record last updated 24 June 2026

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.