← Model indexMODEL PROFILE / gpt-6-sol

OpenAI / current

GPT-6 Sol

The balanced GPT-6 flagship now serving paid ChatGPT tiers by default.

Context1.1M
ModalityText · Image
AccessAPI
ReasoningAdaptive

Where it fits.

Sits between Astra and Luna, keeping frontier reasoning and long context while staying usable for everyday professional workloads. GPT-6 Sol became the default model behind paid ChatGPT plans during the October 2026 rollout, retiring GPT-5.6 from consumer surfaces while API versions remain addressable.

02

Core capabilities

  • Frontier reasoning with a long context window
  • Text and image input with tool-calling support
  • Structured outputs and streaming
  • Search, code interpreter, shell and MCP tooling
03

Best-fit workflows

  • Enterprise assistants
  • Agentic coding workflows
  • Multi-document analysis
04 / OPERATIONS

From evaluation
to production.

Deployment notes

Call the API with an explicit model ID rather than inheriting plan defaults. Keep a regression eval so snapshot rotations are detected early.

Watch before choosing

Consumer ChatGPT routing can change with snapshots; integrations should always pin an explicit model ID. ChatGPT plan routing and API availability differ; do not assume a plan default matches the pinned API model.

05

Family & versions

Specifications and positioning checked against provider documentation.

Open official source↗