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ChatGPT Plus vs Kimi Allegretto
ChatGPT Plus is our pick of the standard band. Kimi Allegretto costs $39/mo, 1.9x ChatGPT Plus's $20/mo.
Our verdict
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.
The Moonshot AI ladder. Every Kimi tier runs the same open-weight K3 on the same credit mechanics, and the rungs are credit multiples of the $19 tier (roughly 2x, 5x and 10x its allowance). Pick a rung by how much you will use; the model is identical everywhere.
ChatGPT Plus is our pick of the standard band.
ChatGPT Plus is for steady everyday use where headroom matters more than raw capability; Kimi Allegretto is for people who specifically want an open-weight model.
Kimi Allegretto costs $39/mo, 1.9x ChatGPT Plus's $20/mo.
We have not measured Kimi Allegretto on its own plan; its card below points at the closest graded evidence.
None of the GPT 5.6 models is the one we would pick on capability alone. What Plus has is the meter: one real-world run costs about 3% of the weekly window, the lightest burn we measure anywhere, so the limit is never what stops you. This is the plan where you stop thinking about quota.
Pros
- One run costs ~3% of the weekly window, the lightest burn we measure
- Three GPT 5.6 models to switch between
- The quickest medians in the field
Cons
- The models sit mid-field, not at the front
- Headroom is the whole pitch
Best for Steady everyday use where headroom matters more than raw capability.
How far it goes: about 30 to 40 times a week
Our whole Real-world issues suite runs about 30 to 40 times a week on this plan, depending on which model you run.
That works out at about 11c to 16c of the subscription per run, at the list price.
Measured on this plan, at 2.4% to 3.5%/1w of its allowance per run. A share belongs to the plan it was measured on, so we never subtract one plan's from another's.
K3 was the closest open-weight challenger, and in our use it has gone backwards: less done with the same prompts, credits draining as fast as ever. If open weights are the requirement, this is still the tier to buy; we just would not put $39 here for the results alone.
Pros
- The sensible Kimi tier if open weights are the requirement
- Long context is a real strength
Cons
- Noticeably weaker than it was a few months ago
- Credits drain faster than the price suggests
Best for People who specifically want an open-weight model.
How far it goes: we have not measured this plan
The K3 subject sat out the latest weekly grading run, so there is no current scorecard; see the leaderboard for graded alternatives.
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, ChatGPT Plus or Kimi Allegretto?
ChatGPT Plus is our pick of the standard band. ChatGPT Plus is for steady everyday use where headroom matters more than raw capability; Kimi Allegretto is for people who specifically want an open-weight model.
How much do ChatGPT Plus and Kimi Allegretto cost?
ChatGPT Plus costs $20/month (public price as of 2026-08-12); Kimi Allegretto costs $39/month (public price as of 2026-08-12).
How far does a suite run go on ChatGPT Plus versus Kimi Allegretto?
Our whole Real-world issues suite fits about 30 to 40 times a week on ChatGPT Plus. We have not measured Kimi Allegretto on its own plan. Each figure is a share of that plan's own allowance, so the two are never subtracted.