stack.tools

GPT-5

by OpenAI · Models & Providers

3 companies with evidence on file — every claim below links to its source.

Amgen

Applied across enterprise workflows.

Medium confidence

Receipts · 1

Show quotes (1)
  • “How Amgen uses GPT-5” — openai.com, Aug 7, 2025

Source last verified Jul 27, 2026 Full Amgen stack →

Notion

Frontier OpenAI models offered in the agent model picker.

High confidence

Receipts · 2

Show quotes (2)
  • “The latest—like Claude Sonnet 4 and GPT-5—are already built in” — notion.com, Sep 18, 2025
  • “Service provider for hosting large language models and embeddings and for abuse prevention” — registora.com, Jul 9, 2026

Source last verified Jul 26, 2026 Full Notion stack →

Perplexity

Flagship OpenAI models offered in the paid model picker.

High confidence

Receipts · 1

Show quotes (1)
  • “GPT-5 is now available on Perplexity and Comet for Max and Pro subscribers.” — x.com, Aug 7, 2025

Source last verified Jul 26, 2026 Full Perplexity stack →