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Google AI Plus vs ChatGPT Go
ChatGPT Go is our pick of the entry band. ChatGPT Go costs $8/mo, 1.6x Google AI Plus's $5/mo.
Our verdict
The Google ladder. It splits at $20. Below that, AI Plus is Gemini in the chat apps and no coding agent worth the name. From AI Pro up, every rung runs the same Antigravity CLI with the same models; Ultra buys volume, not capability.
The OpenAI ladder. Every paid ChatGPT rung runs the same Codex CLI and the same GPT 5.6 models; upgrading changes the weekly allowance and nothing else. Plus is already the lightest quota burn we measure, about 3% of its window per real-world run, so the upper rungs sell headroom most people never touch.
ChatGPT Go is our pick of the entry band.
Google AI Plus is for Gemini across Google apps on a small budget; ChatGPT Go is for a cheap first step onto Codex.
ChatGPT Go costs $8/mo, 1.6x Google AI Plus's $5/mo.
We have not measured Google AI Plus on its own plan; its card below points at the closest graded evidence.
We have not measured ChatGPT Go on its own plan; its card below points at the closest graded evidence.
Five dollars buys Gemini in Gmail, Docs and the chat app, and that is the whole product. There is no agent here worth the name; if coding is the point, the $20 AI Pro rung is where 3.7 Flash actually lives.
Pros
- The cheapest paid Gemini
- Covers Docs, Gmail and the chat app
Cons
- No coding agent worth the name
- The plan you actually want is $15 up the ladder
Best for Gemini across Google apps on a small budget.
How far it goes: we have not measured this plan
We grade Antigravity CLI on the $20 AI Pro plan - its scorecards are the closest evidence.
The leaderboard lists every plan we do grade.
Go exists to get you onto the Codex ladder for $8. It runs the same CLI family as Plus, so nothing changes when you upgrade except the limit, and the limit is what you will notice first.
Pros
- The cheapest way onto the Codex ladder
- Same CLI family as Plus
Cons
- Tight enough that you will soon want Plus
- A stepping stone, not a home
Best for A cheap first step onto Codex.
How far it goes: we have not measured this plan
Same Codex CLI family as ChatGPT Plus with tighter limits - the Plus scorecards are the closest evidence.
The leaderboard lists every plan we do grade.
Verdicts and prices are the quiz's versioned editorial catalog, last reviewed 2026-08-20; usage figures come from our own published runs and stay a share of each plan's own allowance. Any other pair composes on the subscription comparison, and the quiz turns your answers into a recommendation.
Frequently asked questions
Which should I pick, Google AI Plus or ChatGPT Go?
ChatGPT Go is our pick of the entry band. Google AI Plus is for Gemini across Google apps on a small budget; ChatGPT Go is for a cheap first step onto Codex.
How much do Google AI Plus and ChatGPT Go cost?
Google AI Plus costs $5/month (public price as of 2026-08-12); ChatGPT Go costs $8/month (public price as of 2026-08-12).