GPT-6

GPT-6 is OpenAI's AI model family for reasoning, web research and interactive AI experiences, featuring progressive responses and Intelligent UI capabilities in ChatGPT.

About GPT-6

GPT-6 is an artificial intelligence model family developed by OpenAI for conversational assistance, reasoning, research and everyday problem solving. OpenAI introduced the first GPT-6 models to paid customers in September 2026 and announced expanded availability through ChatGPT on October 7, 2026.

GPT-6 supports progressive response generation, allowing ChatGPT to begin answering while continuing to reason. Instead of requiring the entire reasoning process to finish before producing a response, GPT-6 can progressively construct an answer using its knowledge and findings while maintaining coherence across the response.

One of the capabilities highlighted in the October 2026 announcement is Intelligent UI. GPT-6 is trained to compose responses using text, visuals and interactive elements. Within ChatGPT, this enables charts, diagrams, forms, buttons, calculators and other interactive experiences that adapt to the user's question. The system uses native, streamable interface components to present information progressively.

The announced ChatGPT experience uses GPT-6 Sol for Plus, Pro, Business and Enterprise users and GPT-6 Luna for Free and Go users. OpenAI also provides separately documented GPT-6 models through its developer platform. Individual model capabilities, pricing and technical specifications depend on the selected variant.

Key Features

Progressive Reasoning: GPT-6 can begin generating responses while continuing to reason, allowing ChatGPT to present information before the full reasoning process is complete.
Intelligent UI: GPT-6 is trained to compose responses using text, visuals and interactive interface components, including charts, buttons, forms and diagrams within ChatGPT.
Web Research: GPT-6 supports questions requiring web searches, with improvements in deciding when information retrieval is necessary and finding relevant evidence.
Interactive Visual Explanations: ChatGPT can use GPT-6 to present diagrams and explanations that allow users to change inputs, explore relationships and understand concepts through interaction.
Task Specific Interactive Tools: GPT-6 with ChatGPT Intelligent UI can create calculators, bill splitters and interactive games directly within conversations.
Context Aware Safety: GPT-6 is trained to consider conversation history and relevant context when recognizing risks, following safeguards and communicating limitations.

Pricing

Official API prices below are in USD per 1 million tokens. They are standard processing rates for short context requests. The listed variants have separate technical capabilities and usage characteristics.

GPT-6 Luna API:
Input: $0.10 per 1 million tokens
Cached input: $0.01 per 1 million tokens
Cache writes: $0.125 per 1 million tokens
Output: $0.50 per 1 million tokens
GPT-6.1 Sol API:
Input: $2.00 per 1 million tokens
Cached input: $0.10 per 1 million tokens
Cache writes: $2.50 per 1 million tokens
Output: $10.00 per 1 million tokens
GPT-6 Astra API:
Input: $10.00 per 1 million tokens
Cached input: $1.00 per 1 million tokens
Cache writes: $12.50 per 1 million tokens
Output: $50.00 per 1 million tokens

These are the currently documented API model variants. GPT-6.1 Sol is a distinct version from GPT-6 Sol mentioned in the October 7 ChatGPT announcement. A separate GPT-6 Sol API price is not established by the checked pricing table.

Long context processing has separate rates. Batch, Flex, Fast and other processing modes may have different rates and availability.

ChatGPT subscription pricing is separate from API usage billing.

Pricing last updated: October 8, 2026 at 12:00 AM

Use Cases

Research and Information Retrieval: Investigate questions requiring web research and receive responses informed by relevant retrieved information.
Interactive Education: Explore mathematical, scientific and technical concepts through diagrams and adjustable controls in ChatGPT.
Planning and Organization: Create travel itineraries, cooking schedules and other structured plans using interactive presentations.
Interactive Calculations: Generate calculators, expense splitting tools and other interactive experiences within ChatGPT conversations.

Pros & Cons

Pros:

Supports progressive response generation, allowing ChatGPT to begin answering while the model continues reasoning.
Enables interactive ChatGPT experiences with charts, diagrams, forms, buttons and visual explanations.
OpenAI reports that GPT-6 Instant begins answering web search questions 44% sooner on average than GPT-5.6 Instant in its internal evaluation.

Cons:

Intelligent UI is documented for ChatGPT, and equivalent functionality through a public API is not established in the October 7 announcement.
Enterprise availability depends on workplace administrator settings.
The October 7 ChatGPT update does not change the models powering Work or Codex.

Integrations

ChatGPT Web, ChatGPT Mobile

FAQ

What is GPT-6?

GPT-6 is an artificial intelligence model family developed by OpenAI. It supports conversational reasoning, research assistance and progressive response generation. Within ChatGPT, GPT-6 also powers interactive visual experiences through Intelligent UI.

What is Intelligent UI in GPT-6?

Intelligent UI is a ChatGPT capability that allows GPT-6 to compose responses using text, visuals, charts, diagrams, forms, buttons and other interactive components.

Does GPT-6 support reasoning?

Yes. OpenAI documents GPT-6 generating responses while continuing to reason. This allows ChatGPT to begin answering before the complete reasoning process finishes.

Can GPT-6 perform web research?

Yes. GPT-6 supports questions requiring web search in ChatGPT. OpenAI reports improvements in deciding when to search and identifying information relevant to user questions.

Can GPT-6 create interactive tools?

GPT-6 with Intelligent UI can create interactive experiences within ChatGPT, including bill splitters, savings calculators, educational diagrams and games.

What are GPT-6 Sol and GPT-6 Luna?

GPT-6 Sol and GPT-6 Luna are variants of the GPT-6 model family. The October 2026 announcement identifies Sol as powering ChatGPT for Plus, Pro, Business and Enterprise users, while Luna powers the experience for Free and Go users.

When was GPT-6 released?

OpenAI states that the first GPT-6 models were introduced to paid customers in September 2026. The expanded ChatGPT rollout featuring Intelligent UI was announced on October 7, 2026.

Is GPT-6 available to free ChatGPT users?

Yes. OpenAI announced that GPT-6 Luna would begin rolling out to ChatGPT Free and Go users on October 8, 2026.

Does GPT-6 provide API access?

OpenAI provides officially documented API variants including GPT-6 Luna, GPT-6.1 Sol and GPT-6 Astra. The October 7 Intelligent UI announcement does not establish equivalent interface generation features through these APIs.

Is GPT-6 available with different API pricing options?

Yes. OpenAI publishes separate token pricing for documented GPT-6 API variants. Charges depend on the model, token type, context length and processing mode.

Categories:

AI Models Foundation