Pick CustomGPT if
support and association teams who will pay Standard $99 after the 7-day trial so they can keep 10 agents and 1,000 queries — there is no permanent Free row.
Read the CustomGPT pageCustomGPT vs StackAI
Our take
Pick CustomGPT if support and association teams who will pay Standard $99 after the 7-day trial so they can keep 10 agents and 1,000 queries — there is no permanent Free row. Pick StackAI if ops and IT teams who will burn Free’s 500 runs on two projects and then talk to sales for Enterprise seats, SSO, and on-prem — there is no public mid-tier dollar card.
Best for
CustomGPT A customer-facing knowledge bot billed by queries
StackAI A governed internal agent IT will actually deploy
Free plan
CustomGPT No free plan
StackAI $0 · /month. 500 runs / month. 2 projects. 1 seat. Community Discord. Data loaders: web scrape, file upload, Google Drive, Notion. Outputs: text / image / audio. Slack bot, Chrome extension, REST API
Lowest paid
CustomGPT Standard $99/mo yearly
StackAI Not published by the vendor
Next step up
CustomGPT Premium $499/mo yearly
StackAI
Coding agent
CustomGPT Agent ingest
StackAI Knowledge bases
Runs where
CustomGPT Hosted
StackAI Local or hosted
Watch out
CustomGPT No permanent Free plan
StackAI Free is 500 runs / 2 projects / 1 seat
Last checked
CustomGPT 2026-10-22 · customgpt.ai/pricing
StackAI 2026-10-22 · stack-ai.com/pricing
Which one, then?
Pick StackAI if
ops and IT teams who will burn Free’s 500 runs on two projects and then talk to sales for Enterprise seats, SSO, and on-prem — there is no public mid-tier dollar card.
Read the StackAI page