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What is GPT?

Definition

GPT(Generative Pre-trained Transformer)

GPT (Generative Pre-trained Transformer) is a decoder-only autoregressive transformer architecture developed by OpenAI. It was pre-trained on massive text datasets to predict next words, pioneering the modern conversational AI era.

Why It Matters for AI Builders

Helps AI builders design and scale robust architectures; mastering the implementation of GPT improves latency, accuracy, and operational efficiency for interactive text generation, code editing, and contextual reasoning api integrations.

Detailed Deep Dive

GPT (Generative Pre-trained Transformer) is a family of autoregressive decoder-only Transformer models pioneered by OpenAI. Trained to predict the next token on massive text datasets, GPT models serve as the foundation for modern conversational assistants, establishing the power of scaling parameters, compute, and data to achieve advanced reasoning capabilities.

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Frequently Asked Questions

Q:What does "Pre-trained" mean in GPT?

It means the model has already been trained on massive datasets to understand basic grammar, facts, and logic before being tuned for specific tasks.

Q:Why is GPT a decoder-only architecture?

Because its primary purpose is text generation. It uses causal attention masking to prevent tokens from looking at future tokens in a sequence.

Quick Facts

  • CategoryNeural Architectures
  • Key ApplicationInteractive text generation, code editing, and contextual reasoning API integrations

Coverage Trend12 Weeks

12w agoToday

Cite This Term

Reference this definition in your articles, research, or documentation to credit this source:

[GPT | SPIDITS Glossary](https://spidits.com/ai-glossary/gpt)

GPT Media Coverage & Intelligence

AWS ML BlogSep 2, 2026

Accessing OpenAI models on Amazon Bedrock from Australia with global cross-Region inference

Australian teams can now access OpenAI GPT-5.6 Sol, Terra, and Luna models on Amazon Bedrock with global cross-Region inference from the Asia Pacific...

AWS ML BlogAug 20, 2026

Introducing cross-Region inference for OpenAI GPT-5.6 models on Amazon Bedrock

Amazon Bedrock now offers OpenAI GPT-5.6 models (Sol, Terra, and Luna) in more than 25 AWS Regions with cross-Region inference. Learn how US geographic and...

arXiv AIAug 20, 2026

Solving Is Not Drawing: A Benchmark for Diagrammatic Reasoning in Olympiad Geometry

Foundation model such as GPT and Claude now solve olympiad-level mathematics with remarkable proficiency, so much so that geometry problem solving has...

OpenAI BlogAug 19, 2026

Replit expands access to software creation with GPT-5.6 Luna

Replit introduces Free Mode, powered by GPT-5.6 Luna, so anyone can turn ideas into working software without worrying about token costs.

Together AI BlogAug 18, 2026

DeepSeek V4 Pro 0813 vs GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing

We ran 904 DeepSWE rollouts on DeepSeek V4 Pro 0813 and GPT-5.6 Sol. Sol leads pass@1 by 10 points at 35x the cost; Pro wins pass@4, and a Pro-first cascade hits 83.0%.

WiredAug 11, 2026

A New Trick Reveals AI Models' Inner Thoughts

Researchers devised a way to extract "reasoning traces" from Claude, GPT, and Gemini. What they found, they say, indicates that some Chinese AI may be...

OpenAI BlogAug 11, 2026

OpenAI introduces GPT-5.6 Daybreak expansion for enterprise threat detection

OpenAI announced GPT-5.6 integration for the Daybreak defensive platform, offering autonomous threat mitigation across hybrid cloud systems.

Together AI BlogAug 6, 2026

DeepSeek-V4 Flash 0731 vs GPT-5.6 Luna on DeepSWE: Cost and Coding

We ran 900 DeepSWE rollouts on DeepSeek-V4 Flash and GPT-5.6 Luna. Luna leads pass@1 by 14 points; DeepSeek delivers 4.8x the solves per dollar.

AWS ML BlogJul 30, 2026

Introducing explicit prompt caching for OpenAI GPT-5.6 models on Amazon Bedrock

OpenAI GPT-5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrock, along with explicit prompt caching that gives you precise control over...

The Hacker NewsJul 26, 2026

OpenAI discloses GPT-5.6 Sol release and autonomous sandbox escape during ExploitGym evaluation

OpenAI reports that GPT-5.6 Sol autonomously exploited a third-party zero-day vulnerability to escalate privileges and access external Hugging Face benchmark answers.

AWS ML BlogJul 24, 2026

Get started with OpenAI GPT-5.6 Sol, Terra, and Luna on Amazon Bedrock

OpenAI GPT-5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrock. Learn how to select a model, run inference through the Responses API on...

Last Week in AIJul 21, 2026

Last Week in AI #250 - Mythos Mess, GPT 5.6-Sol, GLM 5.2

Anthropic's AI treaty discussions, US government's influence on AI model releases, OpenAI's processor development, memory market impacts, and more!

SiliconANGLEJul 15, 2026

OpenAI details GPT-Red, an AI that attacks its own models to find flaws

OpenAI Group PBC today detailed GPT-Red, an internal artificial intelligence system it built to attack its own models and surface prompt injection vulnerabilities before they reach users. Red teaming is the job of hammering software to find its weak points, work that normally falls to human...

TechCrunch AIJul 14, 2026

OpenAI's new flagship model deletes files on its own, people keep warning

A number of social media posts claim that GPT-5.6 Sol deleted files and data without warning. OpenAI had basically disclosed the problem in June.

AWS ML BlogJul 13, 2026

OpenAI GPT-5.6 Sol, Terra, and Luna are now generally available on Amazon Bedrock

Today, GPT-5.6 Sol, Terra, and Luna from OpenAI are generally available on Amazon Bedrock, bringing the smartest family of models from OpenAI yet to Amazon...

SiliconANGLEJul 9, 2026

OpenAI debuts ChatGPT Work, an agentic tool for automating business workflows

OpenAI Group PBC today launched a new "agentic" tool called ChatGPT Work as it announced the global rollout of its most advanced model family so far in GPT-5.6. ChatGPT Work is a new mode within ChatGPT that's designed to perform actions autonomously across user's connected applications, files...

OpenAI BlogJul 9, 2026

OpenAI launches GPT-5.6 model family following security review

GPT-5.6 Sol, Terra, and Luna bring multi-tier reasoning model to enterprise ChatGPT Work accounts.

SiliconANGLEJul 8, 2026

OpenAI launches GPT-Live voice model series ahead of broad GPT-5.6 release

OpenAI Group PBC today introduced GPT-Live, a family of artificial intelligence models optimized to process spoken instructions. The model series will power ChatGPT's voice mode. Additionally, OpenAI plans to make it available to developers via an application programming interface. GPT-Live...

BAIR BlogJul 7, 2026

Intelligence is Free, Now What? Data Systems for, of, and by Agents

... government of the people, by the people, for the people ... Abraham Lincoln, Gettysburg Address (1863) The cost of AI is dropping rapidly. GPT-4-class capabilities cost roughly $30 per million token in early 2023; today the same runs under $1 , and some providers are pushing costs below...

AWS ML BlogJul 1, 2026

Run NVIDIA Nemotron and OpenAI GPT OSS models on Amazon Bedrock in AWS GovCloud (US)

We're excited to introduce US-based frontier open-weight models in AWS GovCloud (US). With this release, Amazon Bedrock now supports OpenAI's open-weight GPT...

Latent SpaceJun 27, 2026

[AINews] OpenAI GPT-5.6 Sol / Terra / Luna - restricted to trusted partners

Oddly tiered releases to both OAI and ANT on the same day.

SiliconANGLEJun 26, 2026

OpenAI introduces GPT-5.6 to challenge Claude Mythos 5

OpenAI Group PBC today introduced GPT-5.6, a new series of large language models that it says can outperform Claude Mythos 5 across certain coding tasks. The most advanced algorithm in the lineup is known as Sol. It's available alongside a midrange option called Terra and an entry-level model...

WiredJun 26, 2026

OpenAI Has New AI Models. Here's Why You Can't Use Them

The White House asked OpenAI to delay the rollout of its GPT-5.6 AI model, two weeks after Anthropic had to take its most advanced AI model offline.

VentureBeatJun 26, 2026

OpenAI unveils GPT-5.6 Sol, Terra and Luna models - but only accessible to limited preview partners for now, per US Gov

OpenAI is announcing a limited preview of its newest frontier AI model GPT-5.6 family, which comes in three variants: Sol, Terra, and Luna. Sol is for the...

OpenAI BlogJun 26, 2026

Previewing GPT-5.6 Sol: a next-generation model

OpenAI previews GPT-5.6 Sol, a next-generation model with stronger capabilities in coding, science, and cybersecurity, paired with its most advanced safety...

SiliconANGLEJun 25, 2026

As OpenAI staggers GPT-5.6 rollout for government vetting, it may delay IPO to 2027

OpenAI Group PBC will roll out its next model, GPT-5.6, to a small group of partners rather than the public at the request of the Trump administration, the latest sign that Washington now wants to review frontier artificial intelligence models before they ship widely. The plan was disclosed by...

VentureBeatJun 25, 2026

OpenAI's updated GPT-5.5 Instant is better at shopping, complex constraints, and understanding user intent - and it's already in the API

OpenAI has made a significant update to its most widely used language model, GPT-5.5 Instant, which is the default in the free version of ChatGPT. The company...

WiredJun 22, 2026

OpenAI Launches Full-Scale Effort to Patch Open-Source Bugs as It Takes on Anthropic's Mythos

Amid concerns about AI model' cybersecurity capabilities, OpenAI revealed an improved version of GPT-5.5-Cyber and its "Patch the Planet" initiative to fix...

MODEL RELEASEJun 22, 2026

The White House is asking OpenAI to slow roll the release of its new model over safety concerns

penAI reportedly plans to share its newest model, GPT 5.6, with a select group of partners instead of to the broader public. The reason: the Trump...

OpenAI BlogJun 22, 2026

Daybreak: Tools for securing every organization in the world

OpenAI introduces new Daybreak tools, including Codex Security and GPT-5.5-Cyber, to help organizations find, validate, and patch vulnerabilities at scale.

PRODUCT LAUNCHJun 17, 2026

Anthropic's Claude is winning over paid consumers, a market owned by ChatGPT

Despite ChatGPT's commanding market lead, consumers who pay for AI have been increasingly choosing Anthropic's Claude, data shows.

VentureBeatJun 16, 2026

Z.ai's open-weights GLM-5.2 beats GPT-5.5 on multiple long-horizon coding benchmarks for 1/6th the cost

Today, Chinese AI startup Z.ai (formerly Zhipu AI) announced the immediate release of GLM-5.2 , a 753-billion parameter open-weights large language model...

FUNDINGJun 9, 2026

Surprise upset: GPT-5.5 beats Claude Fable 5 on brutal new Agents' Last Exam benchmark

Researchers from the University of California, Berkeley's Center for Responsible, Decentralized Intelligence (RDI), alongside an advisory committee of over...

OpenAI BlogJun 3, 2026

Introducing new capabilities to GPT-Rosalind

GPT-Rosalind advances life sciences research with enhanced biological reasoning, medicinal chemistry expertise, genomics analysis, and experimental workflow...