Compression Savings
Tokens Saved
Compression Quality
Overhead
TTFB s avg
Savings Breakdown
Compression
Prefix Cache Discount
Provider-native caching
CLI Filtering (rtk)
tokens avoided
Anthropic Subscription Window
5-Hour Window
7-Day Window
Extra Usage (Overage)
Headroom Contribution This Window
Efficiency
Tokens Saved
Compression
Cache Reads
Raw vs Submitted
Forwarded to Anthropic
Saved by Headroom
⚠ Anomalies Detected
OpenAI Codex Rate-Limit Window
Primary
Secondary
Credits
Pay-as-you-go credits balance
GitHub Copilot Quota
∞
Unlimited
Monthly Reset
Month start
Prefix Cache Impact
Cache Reads
Cache Writes
Hit Rate
Cache Busts
Providers
with cache data
Cache Efficiency
Reads (discounted)
Writes
Uncached
Observed TTL Buckets
Provider-reported cache write mix
Bucket Mix
1h
/
5m
Observed write-token split
1h Cache Writes
5m Cache Writes
Per-Provider Breakdown
What Headroom Removed
No waste signals detected yet. Data appears after requests are processed.
Savings Over Time
Trend data will appear after multiple requests.
Token Usage
Before Compression
After Compression (sent)
Output Tokens
Providers
No requests yet
Performance
Headroom Overhead
Overhead Range
TTFB (upstream)
TTFB Range
Failed Requests
Pipeline Breakdown
Per-Model Token Savings
Exact tokens saved per model
| Model | Requests | Tokens Saved | Tokens Sent | Reduction |
|---|---|---|---|---|
Recent Requests
Last 10 — click row to expand
| Time | Model | Input | Output | Saved | Quality | Latency | |
|---|---|---|---|---|---|---|---|
|
Original Tokens
Compressed Tokens
Tokens Removed
Optimization Time
Transforms Applied
Waste Detected
|
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Historical Proxy Compression
Durable local savings history from /stats-history
Lifetime Compression Savings
Proxy compression only
Lifetime Tokens Saved
Active Days
Average Saved / Day
Based on persisted daily buckets
Average Saved / Week
Based on persisted weekly buckets
Historical Savings Trend
Historical trend data will appear after more saved checkpoints in this granularity.
Historical Summary
Latest total
Selected series
Selected points
Average / month
Retention
Daily Savings
Daily rollups will appear after persisted history spans at least one checkpoint.
Weekly Savings
Weekly rollups will appear after persisted history spans multiple days.
Monthly Savings
Monthly rollups will appear after persisted history spans multiple months.
Recent Historical Checkpoints
Cumulative proxy compression savings
No persisted savings history yet
Historical data is written locally after proxy requests save tokens. Keep using Headroom and this view will fill in automatically across restarts.