LLM Reference

GPT-6 Models by OpenAI

OpenAIProprietary
1 model2026Up to 1.05m ctxFrom $10/1M input

Last refreshed 2026-09-03. Next refresh: weekly.

Details

ResearcherOpenAI
LicenseProprietary
Commercial useCommercial use: conditional
Models1
Released2026
Max context1.05m

Capabilities

VisionAll models
MultimodalAll models
ReasoningAll models
JSON / Tool useAll models
Structured OutputsAll models
Code ExecutionAll models

Links

Website

About

GPT-6 is OpenAI's model family introduced September 3, 2026 with GPT-6 Astra. OpenAI describes Astra as a new generation of intelligence for computer use, browsing, software engineering, cybersecurity, science, and professional work, rolling out first to a limited set of organizations, with ChatGPT Plus/Pro/Business/Enterprise and OpenAI API access coming in the following days.

Decision facts

Best fit
vision and multimodal workreasoningJSON / Tool use
Capability starting point
GPT-6 Astra with 1.05m context and reasoning, JSON / Tool use, structured outputs, and multimodal inputs
Lowest tracked input
GPT-6 Astra · $10/1M · OpenAI API
Closest related family
GPT Realtime 2

Current Variants

Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.

1 in view

Use when the workload needs 1.05m context, reasoning, and JSON / Tool use.

2026-091.05m contextreasoningJSON / Tool use

Release Timeline

1 release group
2026-09
1 current
GPT-6 Astra
1.05m contextreasoningJSON / Tool use
Current

Specifications(1 models)

GPT-6 model specifications comparison
ModelReleasedContextVisionMultimodalReasoningJSON / Tool useStructured OutputsCode Exec
GPT-6 Astra2026-091.05mYesYesYesYesYesYes

Available From(1 provider)

Pricing

GPT-6 model pricing by provider
ModelProviderInput / 1MOutput / 1MType
GPT-6 AstraOpenAI API$10$50Serverless