Calculators and money-honest breakdowns for founders who run the numbers.
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61 posts
A date audit found four posts stamped 6 to 47 days before the domain existed. Here is what changed, how the new dates were chosen, and the two lookups that let you check it.
Mixpanel pricing in 2026 in real numbers: free to 1 million events, then $0.28 per 1,000, three worked 30-day bills, the blended-rate ladder, and the one lever (event hygiene) that keeps you near the free tier.
Your real blended Stripe rate in 2026 is 2.9% plus $0.30 divided by your average ticket (US domestic online cards). Below about $20 the flat 30 cents dominates: an $8 ticket pays 6.65%, a $45 ticket 3.57%, a $220 ticket 3.04%. The biggest lever is raising your average ticket (annual billing, bundling, minimums) or moving large invoices to ACH at 0.8%, capped at $5.
Modal bills GPU compute by the second with scale-to-zero. We decode the 2026 per-GPU rate card, the keep-warm idle trap, three real 30-day bills, and the ~73% utilization crossover versus a rented pod.
Braintrust bills by evaluation scores (rows x scorers x runs), not seats. We decode the meter, find the ~199,000-score Pro crossover, work three 30-day bills, and show a one-lever fix that cut a bill 71%.
Courier bills $0.005 per notification sent, first 10,000 free, and the meter counts notifications, not channels. Three worked 30-day bills and the one lever that cuts them.
Unkey's API-key pricing is a step ladder, not a slope. We map the effective cost per million valid requests, find the threshold cliff, and run three 30-day bills.
Svix bills webhooks on attempted messages, and in 2026 the Free and $490 Professional plans include the same 50,000 a month. A numbers-first teardown: three real 30-day bills, the 64 KiB chunking trap, and why the upgrade is about throughput, not volume.
Liveblocks does not bill by monthly active users. It meters collaboration minutes at $0.002 each, and an AI copilot counts as a participant. Here is the 2026 rate card, three worked 30-day bills, and the one lever that takes $480 back to $16.
A worked-bill teardown of Grafana Cloud's 2026 pricing: how the active-series meter works, why one high-cardinality label can turn a $0 free-tier bill into $2,089 a month, and the one-lever fix.
Northflank pricing in 2026 is a per-hour meter on the vCPU and memory you allocate: $0.01667 per vCPU-hour and $0.00833 per GB-hour, plus $0.15/GB-month disk and $0.06/GB egress. The named nf-compute plans are just that meter times 720 hours, not discounts, and the bill is almost always dominated by memory you requested and never used.
