AgentHubKnow when to buy, switch, or wait on your AI tool stack.
Change impact watchlist
Save the tools your team is evaluating, see which tracked changes affect that shortlist, and generate a decision memo you can share without sending internal docs or code.
Impact alerts
Estimated monthly cost: $142
Teams comparing ChatGPT against Claude, Gemini, or specialist coding tools should treat GPT-5.5 as the current capability baseline. ChatGPT Business is more compelling for mixed-role teams because GPT-5.5 Pro access, Codex, connectors, and governance can sit in one workspace seat, while API-heavy buyers must model the higher GPT-5.5 token price separately from subscription seats.
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ChatGPT becomes easier to defend as the broad default when a team wants one OpenAI ladder spanning chat, coding, and API-adjacent work instead of a narrower assistant seat.
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Notion still works well as a bundled workspace AI buy, but teams that want sustained autonomous automation now need to budget a separate metered line instead of assuming the all-in workspace price covers everything.
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ChatGPT is easier to justify for price-sensitive individual rollout and for teams that want a softer on-ramp before deciding whether Plus or Business is worth standardizing.
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Gemini is no longer just a Workspace bundle story or a single Pro reference point. Buyers now have a wider Google-native ladder, which strengthens Gemini in both consumer and suite-anchored shortlist conversations.
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Mixed-role teams can now justify ChatGPT as one broader workspace purchase instead of buying one chat tool for knowledge work and another coding tool for technical users.
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For Google-centric teams, Gemini is no longer a separate experiment. It can ride on existing Workspace budgeting, which changes the default answer for meeting-heavy and document-heavy teams.
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The OpenAI stack now has a cleaner step-down path below GPT-5.4, which matters for buyers comparing premium ChatGPT access against specialist tools or lower-cost suite bundles.
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For teams already considering Notion as a shared workspace, AI is now part of the workspace decision instead of a separate add-on line item, which improves Notion's seat economics against Copilot Business and other suite-native assistants.
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Decision memo
# AI Stack Decision Memo: Team AI shortlist Buyer context: team / coding Team size: 5 Selected tools: Gemini, Notion AI, ChatGPT Estimated monthly self-serve cost: $142 Highest impact: urgent ## Impact Alerts - ChatGPT: GPT-5.5 replaces the GPT-5.4 buying story across ChatGPT, Codex, and the API. Re-check this stack before renewal or rollout. - ChatGPT: GPT-5.4 now anchors ChatGPT, Codex, and the API as OpenAI's main flagship layer. Re-check this stack before renewal or rollout. - Notion AI: Notion now prices Custom Agents separately after the bundled AI layer. Update the decision memo before sharing this stack. - ChatGPT: ChatGPT now exposes a Go tier between Free and Plus. Update the decision memo before sharing this stack. - Gemini: Google AI plans now span Plus, Pro, and Ultra around Gemini and NotebookLM. Update the decision memo before sharing this stack. - ChatGPT: ChatGPT Business now packages connectors and Codex inside one workspace seat. Update the decision memo before sharing this stack. - Gemini: Gemini is bundled into Google AI Pro and Workspace Business tiers. Update the decision memo before sharing this stack. - ChatGPT: GPT-5.4 mini and nano widen OpenAI's lower-cost ladder on March 17, 2026. Update the decision memo before sharing this stack. - Notion AI: Notion Business and Enterprise now include unlimited Notion AI. Update the decision memo before sharing this stack. ## Pricing Caveats - At least one selected tool lacks complete self-serve monthly pricing. ## Evidence - [Gemini](https://workspace.google.com/pricing?hl=en_us) - [Notion AI](https://www.notion.com/pricing) - [ChatGPT](https://chatgpt.com) - [chatgpt vs claude](/en/compare/chatgpt-vs-claude) - [chatgpt vs gemini](/en/compare/chatgpt-vs-gemini) - [notion-ai vs chatgpt](/en/compare/notion-ai-vs-chatgpt) - [gemini vs notion-ai](/en/compare/gemini-vs-notion-ai) - [microsoft-365-copilot-business vs notion-ai](/en/compare/microsoft-365-copilot-business-vs-notion-ai) - [notebooklm vs notion-ai](/en/compare/notebooklm-vs-notion-ai) - [glean vs notion-ai](/en/compare/glean-vs-notion-ai) - [claude vs gemini](/en/compare/claude-vs-gemini) - [microsoft-365-copilot-business vs gemini](/en/compare/microsoft-365-copilot-business-vs-gemini)
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