Guides → Playground & Guide → Plan Overage Calculator - Pay the Overage, or Upgrade a Tier?
Meet Dana Okafor. Eng lead owning a team's AI tooling budget. "We blew past our Copilot credits again. Do I just eat the overage, or move everyone up a tier?"
🔥 The overage line is creeping up every month and finance keeps asking why the 'flat' plan isn't flat.
Almost every AI plan in 2026 is hybrid: a seat price, a bundled allotment, then metered overage. The sticker price is the smallest part of the story once you cross the included line.
Dana is on Copilot Pro (1,500 credits) but the team burns ~2,400/mo. The question isn't 'is overage bad' - it's 'is overage cheaper than the next tier'. Below a break-even usage, paying overage wins; above it, the bigger allotment wins.
This calc puts your current plan and the next tier side by side, computes the real bill on each (plan + overage), and tells you the exact usage where the decision flips.
Here are the inputs that move the result the most. Play with the sliders and check it out. The number updates live.
Drag your monthly usage — the two columns are your real bill on each plan, and the cheaper one is crowned.
💡Preview compares GitHub Copilot Pro ($10, 1,500 credits) vs Business ($19, 1,900 credits) at $0.01/credit overage. Open the full calculator to pick any two plans and edit every number.
Same calculator, three team sizes. Click a tab to see how the numbers shift.
1,200 credits on a 1,500 plan. No overage, $10/mo flat. Upgrading would just pay more for headroom you aren't using. Stay.
Healthy range: Stay wins - no overage at all
2,400 credits: 900 over the 1,500 cap. At $0.01/credit that's $9 overage on top of $10 = $19, vs $19 for Business. Essentially a tie - stay unless you want the bigger bucket for predictability.
Healthy range: Stay still edges out - overage cheaper than the tier gap
6,000 credits: 4,500 over. Overage alone is $45 on top of $10 = $55, vs Business at $19 (1,900 included, then its own overage). Upgrade is far cheaper and resets the overage clock.
Healthy range: Upgrade wins clearly
Same calculator, different applications. Sizes above, workloads here. Pick the one that looks like yours.
Pre-loaded scenarios for the most common applications. Click a tab to see realistic numbers, then hit "Try this scenario" to load it into the calculator above.
With overage off, hitting the 1,500 cap throttles the team for the rest of the month. The bill stays $10 but work stops. If 3,000 is real demand, upgrade to lift the wall.
Healthy range: Upgrade - the cap is a wall, not a meter
On pooled-credit business/enterprise plans, the included bucket is shared. Heavy pooled usage tips toward Enterprise's larger shared allotment - the calc nets it out for you.
Healthy range: Compare pooled allotments, not per-seat stickers
Open the full calculator. Pick a model, enter your tokens, see per-call, daily, monthly, and annual cost.
🚀 Open the full calculator →Hybrid AI plans bundle some usage then meter the rest. See your real monthly bill, blended cost per unit, and the exact usage where upgrading beats paying overage.
Each input shapes the cost. Click an input on the calculator to set it. The explanations below match the live calculator field by field.
Context: Usage units follow the selected plan's meter (requests, credits, or $): compare your tier's included allowance against these magnitude tiers, then type your exact number.
| Input | Default | Typical ballparks |
|---|---|---|
usageUnits
moves the needle
|
2,400 | Light user · 800 units * = 800 · Heavy daily use · 2,400 units * = 2,400 · Power / team driver · 6,000 units * = 6,000 (rough estimates) |
planSlug
|
github-copilot-pro | — |
nextTierSlug
|
github-copilot-business | — |
Ballparks are broad industry starting points (sourced ranges; * = rough estimate) — your result gets more accurate as you replace them with measured numbers.
Try them live in the calculator;
API & agent users get the same data from the MCP resource aicost://input-reference/plan-overage-calculator.
Stay vs Upgrade are the two columns. Each is the real monthly bill on that plan at your usage: seat price plus any metered overage. The cheaper column is the call.
Blended cost per unit is the truth serum. Sticker price divided by included units is the marketing number; blended (total bill / actual usage) is what you really pay once overage kicks in.
Break-even is the trigger. It's the usage level where the next tier's flat price equals current plan + overage. Cross it and upgrading wins.
Overage OFF means a hard wall. If overage is disabled, exceeding the cap throttles you instead of billing you - the bill stays flat but work stops.
Honest limitations. Every model is wrong; some are useful. Where this one falls short:
For these, use: Overage Forecaster projects WHEN you'll breach. Credit Decoder tells you what each credit is worth.
Cost isn't the only dimension. Click any constraint to see how recommendations change.
Overage isn't the enemy - unbounded overage is. Set a spend cap so a runaway month can't surprise finance, but keep metering on so a real spike doesn't throttle the team.
2026 plan allotments move fast. A tier that wins today can lose after a vendor reshuffle - re-run this when invoices jump.
Blended cost per unit creeping toward the next tier's sticker is your signal to upgrade before overage does it for you.
Tradeoff analysis is where most AI projects go sideways. Talk to a CFO-grade AI cost analyst →
The gaps we just listed are real, and they are the expensive ones: your actual prompts, your switching cost, your MLOps overhead. An AICost expert spends the hour on your AI and cloud costs, not a generic playbook. You leave with a written report: the way forward, in 30 days of concrete steps.
Not sure yet? The $39 AICost Blueprint credits toward a Session, and the Session fee credits toward any plan. You never pay twice for the same ground. See all pricing →
You have seen the shape of it. Open the calculator with your model, your tokens, your volume.
🚀 Open the full calculator →Author: Subu Vdaygiri, Founder & CEO of CloudIntelligence.ai. 17 years Fortune 100 (Ingram Micro, Siemens). Wharton CTO program · Kellogg CPO program · 10× AWS+Azure certified.
Last-verified date is the most recent successful daily snapshot
(aicost_pricing_snapshots) or, when no snapshot exists yet,
the latest successful crawler run (aicost_crawler_runs).
10 of 10
vendors are currently verified. Aggregator services (TokenCost, AI Pricing Guru, etc.)
are not listed.
Derived from industry conventions, not directly published by the vendor. Typical conventions: cached input = 10% of base (90% off), Batch API = 50% of base (50% off).
| Vendor / Model | Field | Why it’s inferred |
|---|---|---|
| Anthropic — Claude Sonnet 4.6 | cachedInput |
Derived at 10% of input rate — Anthropic publishes 90% cache-hit discount on this tier. |
| Anthropic — Claude Sonnet 4.5 | cachedInput |
Derived at 10% of input rate; same 90% cache-hit convention as Sonnet 4.6. |
| Anthropic — Claude Sonnet 4.5 | batchInput |
Derived at 50% of standard input — Anthropic documents uniform 50% Batch discount. |
| Anthropic — Claude Sonnet 4.5 | batchOutput |
Derived at 50% of standard output — Anthropic documents uniform 50% Batch discount. |
| Anthropic — Claude Haiku 4.5 | cachedInput |
Derived at 10% of input rate — Anthropic 90% cache-hit discount convention. |
| OpenAI — GPT-5.4 Mini | cachedInput |
Derived at 10% of input — OpenAI documents automatic 90% discount on cache hits across GPT-5.x tier. |
| OpenAI — GPT-5.4 Nano | cachedInput |
Derived at 10% of input — OpenAI 90% cache-hit convention. |
| OpenAI — GPT-5.4 Nano | batchInput |
Derived at 50% of input — OpenAI Batch API uniform 50% discount. |
| OpenAI — GPT-5.4 Nano | batchOutput |
Derived at 50% of output — OpenAI Batch API uniform 50% discount. |
| OpenAI — GPT-5.4 Pro | cachedInput |
Derived at 10% of input — OpenAI 90% cache-hit convention. |
| OpenAI — GPT-5.4 Pro | batchInput |
Derived at 50% of input — OpenAI Batch API uniform 50% discount. |
| OpenAI — GPT-5.4 Pro | batchOutput |
Derived at 50% of output — OpenAI Batch API uniform 50% discount. |
| OpenAI — GPT-5.2 | cachedInput |
Derived at 10% of input; no residency uplift. |
| OpenAI — GPT-5.2 | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5.2 | batchOutput |
Derived at 50% of output. |
| OpenAI — GPT-5 | cachedInput |
Derived at 10% of input. |
| OpenAI — GPT-5 | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5 | batchOutput |
Derived at 50% of output. |
| OpenAI — GPT-5.5 Pro | cachedInput |
Derived at 10% of input — OpenAI does not publish a cached rate for *-pro models; using the family convention. |
| OpenAI — GPT-5.5 Pro | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5.5 Pro | batchOutput |
Derived at 50% of output. |
| OpenAI — GPT-5.2 Pro | cachedInput |
Derived at 10% of input — pro-tier convention. |
| OpenAI — GPT-5.2 Pro | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5.2 Pro | batchOutput |
Derived at 50% of output. |
| OpenAI — GPT-5.1 | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5.1 | batchOutput |
Derived at 50% of output. |
| OpenAI — GPT-5 Pro | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5 Pro | batchOutput |
Derived at 50% of output. |
| OpenAI — GPT-5 Nano | cachedInput |
Derived at 10% of input. |
| OpenAI — GPT-5 Nano | batchInput |
Derived at 50% of input. |
| OpenAI — GPT-5 Nano | batchOutput |
Derived at 50% of output. |
| Google — Gemini 3 Flash | cachedInput |
Derived at 10% of input — Google caching discount convention ~90%. |
| Google — Gemini 3.1 Flash-Lite | cachedInput |
Derived at 10% of input — Google caching convention. |
| Google — Gemini 3.1 Flash-Lite | batchInput |
Derived at 50% of input — Google Batch API uniform 50% discount. |
| Google — Gemini 3.1 Flash-Lite | batchOutput |
Derived at 50% of output — Google Batch API uniform 50% discount. |
| Google — Gemini 2.5 Pro | cachedInput |
Derived at 10% of input. |
| Google — Gemini 2.5 Flash | cachedInput |
Derived at 10% of input. |
| Google — Gemini 2.5 Flash-Lite | cachedInput |
Derived at 10% of input — Google caching convention. |
| Google — Gemini 2.5 Flash-Lite | batchInput |
Derived at 50% of input — Google Batch API uniform 50% discount. |
| Google — Gemini 2.5 Flash-Lite | batchOutput |
Derived at 50% of output — Google Batch API uniform 50% discount. |
| xAI — Grok 4 (legacy) | cachedInput |
Extrapolated at 25% of base. |
Pricing is cross-verified against the
LiteLLM community registry
when available. Daily snapshots are kept in aicost_pricing_snapshots;
every change is logged to aicost_price_changelog with old & new
values for full audit trail. Read the full methodology →