Why run AI locally · Part 2
Is local AI cheaper than a ChatGPT or Claude subscription?
ChatGPT Plus, Claude Pro and Google AI Pro cost about $20 a month. A $607 mini PC equals 30 months of that. Here is the math, and why it isn’t a like-for-like trade.
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- ChatGPT Plus $20/mo; ChatGPT Pro $100, $200 or $500/mo (OpenAI).
- Claude Pro $20/mo or $17/mo billed yearly; Max $100 or $200/mo (Anthropic).
- Google AI Pro $19.99/mo; AI Ultra $99.99 or $199.99/mo (Google).
- Break-even vs a $20 plan: about 30 months for a $607 mini PC (our arithmetic, before electricity).
Short answer: only if you’d otherwise pay for a plan for years, or pay for an expensive one. The main plans cost $20 a month (ChatGPT Plus, Claude Pro) or $19.99 (Google AI Pro). A $607 mini PC costs the same as about 30 months of that, and an RTX 5060 Ti prebuilt about 80 months. Against the $100–$200 plans, hardware pays for itself in months. But a local model isn’t the same product as a frontier cloud model, so the money is only half the question.
What the cloud plans cost
| Plan | Monthly (US, before tax) | Per year |
|---|---|---|
| ChatGPT Plus | $20 | $240 |
| ChatGPT Pro | $100 / $200 / $500 | $1,200 / $2,400 / $6,000 |
| Claude Pro | $20 ($17 billed yearly) | $240 ($200 yearly) |
| Claude Max | $100 / $200 | $1,200 / $2,400 |
| Google AI Pro | $19.99 | $239.88 |
| Google AI Ultra | $99.99 / $199.99 | $1,199.88 / $2,399.88 |
What local hardware costs
Three price points from our own checks (new retail):
- $607: Minisforum NAB6 Lite with 32 GB RAM. It holds small models like Llama 3.1 8B in system RAM (can a $600 mini PC run local AI?).
- $1,599.99: ABS Cyclone Aqua prebuilt with an RTX 5060 Ti 16GB. It fits gpt-oss 20B (14 GB) on the GPU (see the fit).
- $3,919: Minisforum MS-S1 MAX 128 GB. It holds gpt-oss 120B, a 65 GB download (see the fit).
The software is free: Ollama, and open-weight models such as gpt-oss and Llama, cost nothing to download.
The break-even math
Divide the hardware price by the monthly fee: $607 ÷ $20 is about 30 months; $1,599.99 ÷ $20 is about 80 months. Against a $100 plan the same machines break even in about 6 and 16 months, and the 128 GB box breaks even against a $200 plan in about 20 months. That’s our arithmetic, and it leaves out three things:
- Electricity. A PC running a model draws power. We don’t have a measured figure for these machines, so we don’t estimate it.
- Resale and reuse. The PC is still a PC: it does other work and has resale value. A subscription leaves nothing when you cancel.
- What you get. This is the big one. See the next section.
It’s not a like-for-like trade
A $20 plan gets you the provider’s frontier models, plus image generation, voice, file analysis and deep research. A home PC runs open models that are smaller. On the LMArena text leaderboard, Gemma 4 26B A4B, the best-ranked open model we list that fits a 16 GB card, is #100 overall, behind many proprietary models (checked Oct 27, 2026; see the model finder). For everyday writing, summarizing and private notes, a local model can be enough. For the hardest reasoning or coding, the cloud models are still ahead.
So the honest comparison is: is a local model good enough for what you pay a subscription for? If yes, local wins on cost after a couple of years at $20, and much sooner if you pay for a $100–$200 plan. If no, you’ll likely keep a subscription anyway.
Who comes out ahead
- Heavy users on $100–$200 plans who mostly need a capable general model: hardware can pay for itself within a year or two.
- Households with several people: one local box serves everyone on your network, while cloud plans are per person. Keep it off the open internet.
- Light users: the free tiers of the cloud services may cost you nothing at all. Buying hardware only to save money rarely makes sense here.
Use What fits my memory to see which models your current PC can already run, or start at the 16 GB tier.
Hardware in this article
Minisforum NAB6 Lite, Core i5-12600H, 32GB RAM / 500GB SSD
$607 Minisforum · checked Oct 27, 2026, 1:06 PM CT
Listed as available in the store data. Integrated graphics only: models run from system RAM.
Check price at Minisforum (opens in a new tab) ABS Cyclone Aqua gaming PC (Core i7-14700F, RTX 5060 Ti 16GB, 16GB DDR5, 1TB SSD)
$1,599.99 Newegg · checked Oct 27, 2026, about 12:35 PM CT
Sold by Newegg, seen on the product page. Ships with 16 GB system RAM; plan an upgrade to 32 GB.
Check price at Newegg (opens in a new tab)
Minisforum MS-S1 MAX 128GB / 2TB (Ryzen AI Max+ 395)
$3,919 Minisforum · checked Oct 27, 2026, 12:40 PM CT
Caveat
Store data says estimated shipping late November. The 128GB / 4TB version was $4,199.
Check price at Minisforum (opens in a new tab)FAQ
How much is ChatGPT Plus per month?
$20 a month in the US, billed monthly, per OpenAI’s help center (checked Oct 27, 2026). ChatGPT Pro is $100, $200 or $500 a month.
How long until a local AI PC pays for itself?
Against a $20/month plan, a $607 mini PC equals about 30 months of fees and a $1,599.99 RTX 5060 Ti prebuilt about 80 months. That is our arithmetic and excludes electricity.
Is a local model as good as ChatGPT?
Not at the top end. The open models a home PC can hold rank below the best proprietary models on LMArena, but they handle everyday writing and summarizing.
Do I have to pay for local AI software?
No. Ollama is free and open-weight models such as gpt-oss and Llama are free to download.
