Your ChatGPT subscription now spends inside third-party apps: Sign in with ChatGPT carries plan usage to Devin, Notion, Vercel
ChatGPT paid subscribers can now spend their plan's token capacity inside participating third-party tools, with Sign in with ChatGPT extending plan usage across 16 partners.
ChatGPT paid subscribers can now spend their plan's token capacity inside participating third-party tools, with Sign in with ChatGPT extending plan usage across 16 partners.
What happened
OpenAI announced at DevDay 2026 that Sign in with ChatGPT supports plan usage across 16 partners, including Cognition's Devin, Notion, Vercel, T3, OpenClaw, and Dactyl. Paid subscribers can carry their ChatGPT token capacity into those tools, control how much each participating tool consumes, and have eligible usage count toward their existing plan limits.
Why it matters
This turns a ChatGPT subscription into a shared usage budget that follows the user across apps instead of being trapped inside ChatGPT. For developers and teams already paying for Plus or Pro, tools like Devin, Vercel, and Notion can now draw from the plan they already pay for — a quiet change to who captures subscription value in the AI stack.
SOURCES
Verified September 30, 2026.