Pick ChatGPT Go if…
you're on the free plan and only miss more image generation or memory — Go fixes that for a fraction of Plus.
Both plans give unlimited text chats, so this isn't about running out. It's about the model: Go runs the same GPT-5.6 Luna as the free plan, Plus runs GPT-5.6 Sol.
Pick Go ($8/mo) if you want more image generation than Free, plus memory and projects, without paying for a stronger model. Pick Plus ($20/mo) if answer quality matters — GPT-5.6 Sol with adjustable reasoning, Deep Research, Codex and custom GPTs.
| ChatGPT Go | ChatGPT Plus | |
|---|---|---|
| Price / month | $8/mo | $20/mo |
| What you get |
|
|
| Main model | GPT-5.6 Luna (same as Free) | GPT-5.6 Sol with reasoning-effort slider |
| Deep Research | — | 10 per month |
| Coding | Limited Codex access via Terra (Work/Codex only) | Codex; Terra/Luna in Work & Codex |
Monthly prices in US dollars before tax, from each vendor's official pricing (US list price; weekly-billed plans converted to a monthly figure). Updated October 7, 2026
you're on the free plan and only miss more image generation or memory — Go fixes that for a fraction of Plus.
you want noticeably better answers on hard questions, Deep Research, or full Codex as a coding helper rather than Go's limited Codex access via Terra.
Be clear about what Go buys: the model is the same GPT-5.6 Luna that Free users get, and Free also has unlimited text chats. Go's extras are more image generation, memory and projects. If you don't care about those, staying free costs nothing; if you want a smarter model, skip Go and go straight to Plus.
No. Go uses GPT-5.6 Luna, the same model as the free plan. Plus uses GPT-5.6 Sol, which has a slider for how much reasoning effort it spends.
It isn't listed for Go. Plus includes 10 Deep Research runs a month.
How we choose: prices come from each vendor's official pricing page and are re-checked every week. We take no affiliate fees, so rankings aren't for sale.