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Coding agent spend simulator

Stacking Claude Code, Muse, and Gemini? Pick your tools and your usage intensity — get a modeled monthly cost per tool and for the whole stack, in 60 seconds.

The short answer

A solo developer running one AI coding assistant typically spends $0–$20/month. Stack two or three and the bill lands at $40–$60/month on mid tiers — or $400–$600/month if every tool sits on its top tier. The math as of October 2026: Claude Pro and ChatGPT Plus are both $20/month (Claude Code and Codex included), Google AI Pro is $19.99/month. So a Claude + Codex + Gemini stack costs about $60/month at mid tier. Light users are the ones overpaying most: pay-per-token APIs are frequently 90%+ cheaper than a subscription you barely touch. Model your own stack in the 60-second simulator below.

Prices audited Oct 5, 2026 against official pricing pages and 2+ independent sources · Page published Oct 7, 2026 · Prices change often — re-check official pages before buying.

60-second spend simulator

Step 1 of 2 — pick your tools

Which coding assistants do you actually use? (pick all that apply)

The three stacks, tier by tier

Static reference — audited Oct 5, 2026. Official pages move; re-check before buying.

ToolFreeMid tier (sweet spot)Top tier
Claude
Claude Code included
$0
Limited usage
$20/mo Pro
Full Claude Code access
$100–$200/mo Max 5x / 20x
Higher usage allowances
ChatGPT
Muse included
$0
Codex in free phase for many users (Oct 2026)
$20/mo Plus
Codex + flagship models
$100–$200/mo Pro 5x / 20x
Heaviest quotas
Google AI
Gemini coding
$0
Limited usage
$19.99/mo AI Pro
Gemini in IDE + Workspace
$99.99–$199.99/mo AI Ultra
Highest limits + extras

Stack math: 3 tools × mid tier ≈ $60/mo · 3 tools × top tier ≈ $400–$600/mo. Sources: claude.com/pricing, help.openai.com (Pro tiers), plus 2+ independent cross-checks per row — see our Oct 5, 2026 price audit.

FAQ

How much does a solo developer typically spend on AI coding tools per month?

One assistant on a mid tier runs about $20/month (Claude Pro $20, ChatGPT Plus $20, Google AI Pro $19.99 — prices as of Oct 2026). A three-tool stack on mid tiers costs roughly $60/month; the same stack on top tiers ($200 Max/Pro plans) reaches $400–$600/month. Light users on free tiers pay $0 — but free phases end.

Is Claude Code included in the Claude Pro subscription?

Yes. Anthropic's pricing page lists Claude Code access within Pro ($20/mo) and Max tiers ($100/mo 5x, $200/mo 20x). The Max tiers buy higher usage allowances, not a different product. Verify on claude.com/pricing — tiers change.

Is Muse really free right now?

As of October 2026, many Codex users report a free phase with no visible quota meter, and the mechanics are changing frequently. Treat this as temporary: model your spend on the paid tiers (Plus $20/mo, Pro $100–$200/mo) so a billing change doesn't surprise you.

Subscription or pay-per-use API — which is cheaper for coding?

Steady daily use favors the flat $20/month subscription. Bursty or light use favors pay-per-token APIs, which are frequently 90%+ cheaper than a subscription you barely touch. The simulator's result flags which side your pattern falls on.

Which tier do I actually need?

Rule of thumb: if you have never hit a usage limit, you are one tier too high. Take the 60-second simulator above — it maps your tools and intensity to the cheapest tier that fits, instead of the one marketing sold you.

How accurate are the prices on this page?

Prices are from an Oct 2026 audit against official pricing pages and 2+ independent sources. AI subscription prices change often — always re-check the official pricing page before buying. This page was published Oct 7, 2026.

Modeled the stack — now check the rest of the bill

Coding tools are one line item. Most people also overpay $100–$300 a year on overlapping AI subscriptions. Run the free calculator to see your number.

→ Open the AI Subscription Calculator