AI usage limits, side by side
Every major AI tool limits you, and no two do it the same way. Here is how Claude, ChatGPT, Gemini, Cursor, Grok and Perplexity compare in 2026, and how to keep an eye on all of them at once.
Claude meters 5-hour sessions and weekly allowances. ChatGPT has model- and plan-specific allowances. Gemini moved to compute quotas in 2026. Cursor bills in dollars. Grok limits per request kind, and Perplexity has weekly search and monthly Research allowances. Check the allowance that applies to your task.
The comparison table
| Provider | How it limits you | Window and reset | Native visibility | Deep dive |
|---|---|---|---|---|
| Claude | 5-hour session and all-model weekly allowance; additional limits may apply | 5h; fixed weekly reset | Settings > Usage | Details |
| ChatGPT | Allowances depend on model, plan and feature | Varies by allowance | Model availability and reset notices | Details |
| Gemini | Compute-based allowance for personal accounts | 5h plus weekly | Native usage information | Details |
| Cursor | Included usage; extra charges if on-demand is enabled | Billing cycle | Spending dashboard | Details |
| Grok | Account and feature-specific limits | Use the account reset notice | In-product notices | Details |
| Perplexity | Weekly Pro Search and monthly Research allowances | Weekly or monthly | Plan and usage notices | Details |
Visibility is the common thread: every provider tells you the least it can get away with. That is the gap tokenkarma fills, in one view across all of them.
How each provider limits you
Claude
Two rolling windows at once, a 5-hour and a weekly cap, with Opus on its own weekly allowance on Max. Claude usage limits in detail.
ChatGPT
Per-model message caps on a rolling window, with weekly caps on the heaviest reasoning models, and no counter until you hit one. ChatGPT usage limits in detail.
Gemini
Compute-based quotas since May 2026, opaque in compute units rather than messages. Gemini usage limits in detail.
Cursor
A dollar limit, not a message limit: an included monthly amount, then on-demand charges that are easy to miss. Cursor usage and spend in detail.
Grok and Perplexity
Grok meters per request kind, Perplexity caps daily searches and Deep Research separately. Grok and Perplexity limits in detail.
Frequently asked questions
Which AI has the most generous usage limits?
It depends on how you work, because the limits are not measured the same way. Claude uses rolling time windows, ChatGPT uses per-model message caps, Gemini uses compute quotas, and Cursor bills in dollars. The honest answer is to track your own usage on each, which is what tokenkarma is for.
Why do AI usage limits feel so unpredictable?
Providers use different windows and feature allowances, and may change their thresholds. Heavy models, long context and attachments all drain quotas faster, so the same number of messages can hit a limit on one day and not the next.
Do ChatGPT and Claude share the same kind of limit?
No. Claude has session and weekly allowances. ChatGPT allowances depend on the plan, model and feature, and some models share a pool. That is why a ChatGPT and a Claude limit can feel completely different even at similar usage.
How can I see all my AI limits at once?
tokenkarma reads each provider’s live usage and shows them side by side, with reset times and an alert before you hit a wall. It runs as a desktop app for Mac and Windows. See the AI usage tracker.
Did AI usage limits change in 2026?
Yes, repeatedly. Anthropic adjusted Claude limits several times in 2026, Google moved Gemini to compute-based quotas in May 2026, and Perplexity documents separate search and research allowances. Each provider page here notes a last-updated month.
Track every one of these in one place
tokenkarma reads your live usage across Claude, ChatGPT, Gemini, Cursor, Grok and Perplexity, with reset times and alerts before a wall.
For Mac and Windows. Connect your accounts with the browser extension.
tokenkarma is independent and not affiliated with any AI provider. Limit mechanics reflect each provider’s published information as of June 2026 and can change.