The question every developer asks: should I run AI locally or use cloud APIs? The answer depends on volume. Run 100 tasks/day and cloud APIs are cheaper. Run 10,000 tasks/day and local hardware pays for itself in months.
Hereโs the math.
Cloud API costs (per 1M tokens)
| Model | Input | Output | Total (typical) |
|---|---|---|---|
| GPT-5.6 Luna | $0.20 | $1.20 | $1.40 |
| DeepSeek V4 Flash | $0.14 | $0.28 | $0.42 |
| Gemini 3.6 Flash | $1.50 | $7.50 | $9.00 |
| Claude Sonnet 5 | $2.00 | $10.00 | $12.00 |
| GPT-5.6 Sol | $5.00 | $30.00 | $35.00 |
Edge AI hardware costs
| Hardware | Price | Monthly Power | Tokens/sec (7B) | Monthly Capacity |
|---|---|---|---|---|
| RPi 5 + AI HAT | $150 | $3 | 6 tok/s | ~15M tokens |
| Jetson Orin Nano | $249 | $6 | 12 tok/s | ~30M tokens |
| Beelink SER8 | $350 | $8 | 12 tok/s | ~30M tokens |
| Mac Mini M4 (16GB) | $599 | $4 | 20 tok/s | ~50M tokens |
| Mac Mini M4 (32GB) | $799 | $5 | 22 tok/s | ~55M tokens |
Monthly capacity assumes 24/7 operation at typical workload.
Breakeven analysis
How many tokens do you need to process before local hardware is cheaper than cloud APIs?
vs GPT-5.6 Luna ($1.40/M tokens)
| Hardware | Price | Breakeven | Days at 10K/day | Days at 100K/day |
|---|---|---|---|---|
| RPi 5 + AI HAT | $153 | 109M tokens | 10,900 days | 1,090 days |
| Jetson Orin Nano | $255 | 182M tokens | 18,200 days | 1,820 days |
| Mac Mini M4 | $603 | 431M tokens | 43,100 days | 4,310 days |
At Lunaโs prices ($1.40/M tokens), cloud is almost always cheaper. Local hardware only wins at extremely high volumes (millions of tokens per day).
vs Claude Sonnet 5 ($12/M tokens)
| Hardware | Price | Breakeven | Days at 10K/day | Days at 100K/day |
|---|---|---|---|---|
| RPi 5 + AI HAT | $153 | 13M tokens | 1,300 days | 130 days |
| Jetson Orin Nano | $255 | 21M tokens | 2,100 days | 210 days |
| Mac Mini M4 | $603 | 50M tokens | 5,000 days | 500 days |
At Sonnet 5โs prices, local hardware wins at moderate volumes. 100K tokens/day pays back a Jetson in 7 months.
vs GPT-5.6 Sol ($35/M tokens)
| Hardware | Price | Breakeven | Days at 10K/day | Days at 100K/day |
|---|---|---|---|---|
| RPi 5 + AI HAT | $153 | 4M tokens | 400 days | 40 days |
| Jetson Orin Nano | $255 | 7M tokens | 700 days | 70 days |
| Mac Mini M4 | $603 | 17M tokens | 1,700 days | 170 days |
At Solโs prices, local hardware wins quickly. A Jetson pays for itself in 2-3 months at 100K tokens/day.
The real calculation
The breakeven depends on three factors:
1. Token volume: How many tokens per day/month? 2. Model quality needed: Can a local 7B model match the cloud model youโre using? 3. Latency requirements: Can you tolerate slower inference?
Formula
Monthly cloud cost = (tokens_per_month / 1,000,000) ร cloud_price_per_M
Monthly local cost = hardware_price / months_to_payoff + monthly_power
Breakeven (months) = hardware_price / ((tokens_per_month / 1,000,000) ร cloud_price_per_M - monthly_power)
Example calculation
Scenario: 500K tokens/day, using Claude Sonnet 5 ($12/M tokens)
Monthly cloud cost = (500K ร 30 / 1M) ร $12 = $180/month
Monthly local cost = $249/12 + $6 = $27/month (Jetson, 1-year payoff)
Savings = $180 - $27 = $153/month
Payoff = $249 / $153 = 1.6 months
At 500K tokens/day with Sonnet 5, a Jetson Orin Nano pays for itself in under 2 months.
When cloud is cheaper
- Low volume: Under 10K tokens/day. Cloud APIs are simpler and cheaper.
- Frontier quality needed: If you need GPT-5.6 Sol or Claude Opus 5 quality, local 7B models canโt match it.
- Burst workloads: If you need AI occasionally, not 24/7, cloud is cheaper.
- No maintenance: Cloud APIs require zero hardware management.
When local is cheaper
- High volume: Over 100K tokens/day. Hardware pays for itself quickly.
- Always-on: If you need AI 24/7, local is much cheaper than cloud.
- Privacy-sensitive: If data canโt leave your infrastructure, local is the only option.
- Frontier not needed: If a local 7B model is good enough, local wins on cost.
Hybrid approach
The best strategy for most developers:
- Use local models for routine tasks: Classification, extraction, simple Q&A. 7B models handle these well.
- Use cloud APIs for complex tasks: When you need frontier intelligence, escalate to Opus 5 or Sol.
- Route by complexity: Simple tasks go local, complex tasks go cloud.
This gives you the best of both worlds: low cost for high-volume routine work, frontier quality when you need it.
My take
For most developers, cloud APIs are cheaper. GPT-5.6 Luna at $1.40/M tokens is so cheap that local hardware rarely makes financial sense for token processing alone.
But local hardware wins on three things:
- Privacy: Your data never leaves your server.
- Latency: No network round-trip. Responses in milliseconds.
- Availability: No API outages, rate limits, or dependency on external services.
If you need any of those three, the cost calculation changes. A Jetson Orin Nano at $249 is a reasonable investment for always-on, private, low-latency AI.
For pure cost optimization at high volumes, local wins. For everything else, cloud APIs are simpler and usually cheaper.
FAQ
Is local AI cheaper than cloud APIs?
At high volumes (100K+ tokens/day), yes. At low volumes (under 10K tokens/day), cloud is cheaper. The breakeven depends on the cloud modelโs price and your token volume.
How much can I save by running AI locally?
At 500K tokens/day with Claude Sonnet 5 pricing, a Jetson Orin Nano saves $153/month. At GPT-5.6 Luna pricing, savings are much smaller ($5-10/month).
What about quality? Can local models match cloud models?
For simple tasks (classification, extraction, Q&A): yes, local 7B models are good enough. For complex tasks (coding, reasoning, writing): no, cloud frontier models are significantly better.
Should I run AI locally or use cloud APIs?
If you need privacy, low latency, or 24/7 availability: local. If you need frontier quality at low volume: cloud. If you need both: hybrid (local for routine, cloud for complex).
Whatโs the cheapest way to start with local AI?
Raspberry Pi 5 at $80 + Ollama. Run small models (1.5B-3B) for basic tasks. Upgrade to Jetson or Mac Mini when you need more performance.