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AI Coding Cost Calculator
Estimate what agentic coding costs per month — and how the bill scales as your codebase grows. All from your own numbers, no fabricated benchmarks.
Context multiplier as the repo grows2.0×
Agentic loops re-read context that grows with your codebase — so a bigger repo means each task costs more. 1× = a fresh project · 2–4× = a real codebase the agent keeps re-deriving.
Monthly · today
$79.20
Monthly · at 2.0×
$158
Annualized · at scale
$1,901
That’s roughly 26M tokens/month today. The bill climbs with the repo, not with your effort — which is the whole shape of the vibe-coding cost trap. The fix is giving the agent reusable, owned context so it stops re-deriving — the reason a codebase you own gets cheaper to extend, not more expensive.
Estimates from your inputs only — token counts and prices vary by tool and model. Set them to your own.