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I spent $900 on AI coding agents in 8 weeks

3•nthypes•1h ago
I've asked Sonnet 4.5 (Cursor) to generate some stats based on my cursor CSV file usage. Here it is the output: Key Findings from Your Cursor Usage Here are the most interesting insights from your usage data:

Cost Summary

Total Cost: $928.45 over 70 days

Average per Request: $0.06

Cost per Task (Request): Ranges from $0.00 to $2.78, with 65.7% costing under $0.05

Projected Monthly Cost: ~$416 (based on average daily spend of $13.86)

Request Patterns

Requests per 5 Hours: Average 70.7, ranging from 1 to 451

Average Time Between Requests: 6 minutes 33 seconds

Median Time Between Requests: Just 13 seconds (shows bursts of activity)

Peak Activity: 1-2 PM (10.4% of all requests at 1 PM)

Busiest Day: Saturday with 21.7% of requests

Token Efficiency

Average Tokens per Request: 83,371 tokens

Median Tokens per Request: 38,342 tokens

Average Output per Request: 876 tokens

Cache Hit Rate: 88.8% (excellent! saves money)

Cost per 1,000 Tokens: $0.0009 (very efficient due to caching)

Cost per 1,000 Output Tokens: $0.14

Notable Stats

Most Expensive Request: $2.78 using 6.8M tokens (mostly cached)

Total Hours of Active Usage: 1,692 hours (~9 requests/hour)

Most Used Models: claude-4.5-sonnet-thinking, claude-3.5-sonnet, and others

Related: https://news.ycombinator.com/item?id=45914307

Comments

zippyman55•47m ago
That seems like a lot of money for someone kicking the tires on a project. Maybe not so much if my compnay is paying for it. But I'd really like to download and run a local model to minimize the charged requests.
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