Check whether Pro is your active legacy plan
The current public lineup differs from the old Pro and Pro+ tiers. Treat this as an account-specific migration decision rather than assuming the former Pro price and allowance still apply to every new purchase.
Record what your account says an upgrade will change, including whether you can return to your old offer. A legacy allowance may not be available again after switching.
References: Cursor pricing · Cursor models and pricing
Use your bottleneck as the comparison
If the interruption is third-party model spend, a larger allowance for another model pool may not solve it. If a specific feature or peak-time capacity is the constraint, compare that requirement directly. A higher tier does not make every request better.
Over one representative week, note when work stops, which model was active and whether the interruption was an account allowance, provider rate limit or unrelated failure.
Compare the complete bill
For each offer available in your account, add the fixed fee and the variable charges for the same workload. Include provider invoices when using BYOK. Verify which charges an upgrade actually replaces before counting them as savings.
For an illustrative calculation, an extra 50 units of monthly fixed cost needs at least 50 units of avoided variable cost to break even on price alone. These are hypothetical units, not vendor prices. Evaluate feature value and continuity separately.
References: Cursor BYOK documentation
Upgrade for a measured constraint under the offer your account can actually buy. Do not migrate a legacy plan on the strength of an old Pro-versus-Ultra price table.
Sources & further reading
References checked October 18, 2026. Features, prices and account eligibility can change; check the live documentation. Inclusion here is not a hands-on test or vendor endorsement.