# Token Usage Analytics Report

Generated: 2026-04-07 12:00:00
Source: cc-context-stats v1.22.0

> **Note:** This is a sample report for the last 30 days (2026-03-08 → 2026-04-07).
> All project names and session IDs have been anonymized.
> Generated with: `context-stats report --since-days 30`

## Executive Summary

| Metric                 | Value                                   |
| ---------------------- | --------------------------------------- |
| Total Spend            | $1,842.35                               |
| Total Sessions         | 312                                     |
| Projects Analyzed      | 18                                      |
| Cache Hit Ratio        | 41.2%                                   |
| Avg Session Cost       | $5.90                                   |
| Avg Session Duration   | 3h 22m 14s                              |
| Most Expensive Session | a3f9c12d... ($87.40, 4.7% of total)     |
| Most Expensive Project | project-alpha ($412.80, 22.4% of total) |

## Model Usage Breakdown

```mermaid
pie title Model Cost Distribution
    "Opus" : 1512.30
    "Sonnet" : 218.75
    "Haiku" : 111.30
```

| Model Family | Sessions | Total Tokens | Cost     | % of Total Cost |
| ------------ | -------- | ------------ | -------- | --------------- |
| opus         | 241      | 38,204,512   | $1512.30 | 82.1%           |
| sonnet       | 42       | 5,918,340    | $218.75  | 11.9%           |
| haiku        | 29       | 5,102,876    | $111.30  | 6.0%            |

## Cost Optimization Analysis

### Key Findings

- **Real Sessions**: 312 sessions costing $1,842.35
- **Cache Hit Ratio**: 41.2% (room for improvement if <70%)
- **Cost per 1k tokens**: $0.037

### Top Cost Drivers (Top 10 Sessions)

| Session     | Project         | Cost   | Cache % | Duration   | Input   | Output  |
| ----------- | --------------- | ------ | ------- | ---------- | ------- | ------- |
| a3f9c12d... | project-alpha   | $87.40 | 5%      | 2h 14m 03s | 812,340 | 793,218 |
| b7e2d45a... | project-alpha   | $74.15 | 8%      | 45m 21s    | 698,120 | 684,492 |
| c1d8f903... | project-beta    | $68.92 | 12%     | 1h 08m 55s | 640,880 | 631,107 |
| d4a6e721... | project-gamma   | $61.38 | 3%      | 3h 42m 17s | 6,210   | 448,920 |
| e9b3c584... | project-alpha   | $58.77 | 6%      | 33m 49s    | 541,650 | 536,212 |
| f2c7a819... | project-delta   | $54.03 | 19%     | 58m 12s    | 497,440 | 488,350 |
| g5e1b347... | project-beta    | $51.66 | 7%      | 1h 52m 40s | 472,810 | 468,993 |
| h8f4d092... | project-alpha   | $48.24 | 4%      | 22m 07s    | 448,730 | 444,120 |
| i6a2c715... | project-epsilon | $44.91 | 14%     | 4h 05m 28s | 412,200 | 408,730 |
| j3b9e468... | project-gamma   | $39.58 | 11%     | 1h 17m 36s | 368,490 | 361,204 |

### Optimization Opportunities

2. **Sessions with low cache efficiency** (avg 0%)
   - These sessions could benefit most from optimized prompts:

     - k7d4f831... (project-zeta): 0% cache hit
     - l2c8e109... (project-eta): 0% cache hit
     - m5b1a674... (Unknown): 0% cache hit

3. **Model efficiency by family**
   | Model | Sessions | $/1k tokens |
   |-------|----------|-------------|
   | haiku | 29 | $0.022 |
   | opus | 241 | $0.040 |
   | sonnet | 42 | $0.037 |

4. **High-spend projects to review**
   | Project | Sessions | Cost | Cache Hit % |
   |---------|----------|------|-------------|
   | project-alpha | 28 | $412.80 | 12% |
   | project-beta | 41 | $318.44 | 44% |
   | project-gamma | 35 | $264.17 | 38% |
   | project-delta | 27 | $198.53 | 49% |
   | project-epsilon | 22 | $187.62 | 31% |

```mermaid
xychart-beta
    title "Top 5 Projects by Cost ($)"
    x-axis ["proj-alph", "proj-beta", "proj-gamm", "proj-delt", "proj-epsi"]
    bar [412.80, 318.44, 264.17, 198.53, 187.62]
```

## Cost Efficiency

```mermaid
pie title Token Serving: Cache vs Fresh
    "Cache Hit" : 41.2
    "Fresh (non-cached)" : 58.8
```

- **Overall cache efficiency**: 41.2% of tokens served from cache
- **Average tokens per dollar**: 26,973 tokens/$

### Top 5 Most Efficient Sessions (lowest $/1k tokens)

| Session     | Project       | $/1k tokens | Cost  | Tokens |
| ----------- | ------------- | ----------- | ----- | ------ |
| n4c7b215... | project-zeta  | $0.000      | $0.00 | 42,180 |
| o9e3a841... | project-eta   | $0.000      | $0.00 | 38,490 |
| p2f8d607... | Unknown       | $0.000      | $0.00 | 96,340 |
| q6a1c394... | project-theta | $0.010      | $0.18 | 18,200 |
| r3b5e720... | project-iota  | $0.012      | $0.31 | 25,680 |

### Top 5 Least Efficient Sessions (highest $/1k tokens)

| Session     | Project       | $/1k tokens | Cost   | Tokens  |
| ----------- | ------------- | ----------- | ------ | ------- |
| s8d2f415... | project-beta  | $0.138      | $21.42 | 155,240 |
| t5c9a803... | project-alpha | $0.134      | $18.77 | 140,070 |
| u1e6b247... | project-kappa | $0.131      | $16.38 | 125,000 |
| v4f3c981... | project-delta | $0.129      | $14.93 | 115,750 |
| w7a8e526... | project-gamma | $0.127      | $52.14 | 410,550 |

## Daily Activity Heatmap

```mermaid
xychart-beta
    title "Sessions by Day of Week"
    x-axis ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
    bar [52, 68, 71, 48, 55, 22, 26]
```

### Sessions by Day of Week

| Day | Count | Activity             |
| --- | ----- | -------------------- |
| Mon | 52    | ############........ |
| Tue | 68    | ##################.. |
| Wed | 71    | #################### |
| Thu | 48    | #############....... |
| Fri | 55    | ###############..... |
| Sat | 22    | ######.............. |
| Sun | 26    | #######............. |

```mermaid
xychart-beta
    title "Sessions by Hour of Day"
    x-axis ["00h", "01h", "02h", "03h", "04h", "05h", "06h", "07h", "08h", "09h", "10h", "11h", "12h", "13h", "14h", "15h", "16h", "17h", "18h", "19h", "20h", "21h", "22h", "23h"]
    bar [28, 17, 6, 2, 1, 0, 0, 4, 14, 24, 31, 30, 18, 15, 21, 19, 18, 8, 5, 4, 2, 11, 32, 30]
```

### Sessions by Hour of Day

| Hour | Count | Activity             |
| ---- | ----- | -------------------- |
| 00   | 28    | #################### |
| 01   | 17    | ############........ |
| 02   | 6     | ####................ |
| 03   | 2     | #................... |
| 04   | 1     | #................... |
| 05   | 0     | .................... |
| 06   | 0     | .................... |
| 07   | 4     | ###................. |
| 08   | 14    | ##########.......... |
| 09   | 24    | #################... |
| 10   | 31    | #################### |
| 11   | 30    | ##################.. |
| 12   | 18    | ############........ |
| 13   | 15    | ##########.......... |
| 14   | 21    | ###############..... |
| 15   | 19    | #############....... |
| 16   | 18    | ############........ |
| 17   | 8     | #####............... |
| 18   | 5     | ###................. |
| 19   | 4     | ###................. |
| 20   | 2     | ##.................. |
| 21   | 11    | #######............. |
| 22   | 32    | #################### |
| 23   | 30    | ##################.. |

## Weekly Activity Trend

```mermaid
xychart-beta
    title "Weekly Spend ($)"
    x-axis ["W10", "W11", "W12", "W13", "W14", "W15"]
    line [284.50, 412.80, 348.20, 489.60, 218.75, 88.50]
```

```mermaid
xychart-beta
    title "Weekly Sessions Count"
    x-axis ["W10", "W11", "W12", "W13", "W14", "W15"]
    bar [48, 74, 68, 82, 31, 9]
```

| Week     | Sessions | Cost    | Tokens     | Spend Bar            |
| -------- | -------- | ------- | ---------- | -------------------- |
| 2026-W10 | 48       | $284.50 | 7,814,240  | ###########......... |
| 2026-W11 | 74       | $412.80 | 11,204,610 | ################.... |
| 2026-W12 | 68       | $348.20 | 9,640,870  | #############....... |
| 2026-W13 | 82       | $489.60 | 13,284,520 | #################### |
| 2026-W14 | 31       | $218.75 | 5,410,490  | ########............ |
| 2026-W15 | 9        | $88.50  | 1,870,990  | ###................. |

## Code Productivity

> Based on 248 sessions with git activity data.

- **Total lines changed**: 184,320 (+152,840 / -31,480)
- **Lines per dollar**: 100 lines/$
- **Lines per 1k tokens**: 3.7 lines/1k tokens

### Top 5 Projects by Lines/$ Efficiency

| Project       | Lines Changed | Cost   | Lines/$ |
| ------------- | ------------- | ------ | ------- |
| project-zeta  | 1,240         | $0.18  | 6,889   |
| project-eta   | 3,810         | $1.42  | 2,683   |
| project-iota  | 8,920         | $5.37  | 1,661   |
| project-theta | 14,380        | $10.28 | 1,399   |
| project-kappa | 6,240         | $6.38  | 978     |

## Projects

| #   | Project         | Sessions | Cost    | % Total | Tokens    | Cache Hit % | Avg Cost | Dominant Model |
| --- | --------------- | -------- | ------- | ------- | --------- | ----------- | -------- | -------------- |
| 1   | project-alpha   | 28       | $412.80 | 22.4%   | 8,124,500 | 12.0%       | $14.74   | opus           |
| 2   | project-beta    | 41       | $318.44 | 17.3%   | 7,218,340 | 44.1%       | $7.77    | opus           |
| 3   | project-gamma   | 35       | $264.17 | 14.3%   | 6,104,820 | 38.4%       | $7.55    | opus           |
| 4   | project-delta   | 27       | $198.53 | 10.8%   | 4,812,670 | 49.2%       | $7.35    | opus           |
| 5   | project-epsilon | 22       | $187.62 | 10.2%   | 4,208,910 | 31.0%       | $8.53    | opus           |
| 6   | project-zeta    | 18       | $94.30  | 5.1%    | 3,102,440 | 58.7%       | $5.24    | opus           |
| 7   | project-eta     | 15       | $67.48  | 3.7%    | 2,418,760 | 62.3%       | $4.50    | sonnet         |
| 8   | project-theta   | 14       | $55.12  | 3.0%    | 1,984,230 | 71.4%       | $3.94    | opus           |
| 9   | project-iota    | 12       | $48.74  | 2.6%    | 1,748,540 | 55.8%       | $4.06    | opus           |
| 10  | project-kappa   | 9        | $41.83  | 2.3%    | 1,402,180 | 48.3%       | $4.65    | opus           |
| 11  | project-lambda  | 8        | $34.20  | 1.9%    | 1,218,470 | 53.9%       | $4.28    | sonnet         |
| 12  | project-mu      | 7        | $27.41  | 1.5%    | 984,320   | 66.1%       | $3.92    | opus           |
| 13  | project-nu      | 6        | $21.87  | 1.2%    | 784,100   | 44.7%       | $3.65    | opus           |
| 14  | project-xi      | 5        | $18.34  | 1.0%    | 624,850   | 72.8%       | $3.67    | haiku          |
| 15  | project-omicron | 5        | $14.92  | 0.8%    | 512,440   | 38.2%       | $2.98    | haiku          |
| 16  | project-pi      | 4        | $10.38  | 0.6%    | 381,270   | 81.4%       | $2.60    | opus           |
| 17  | project-rho     | 3        | $7.54   | 0.4%    | 284,160   | 59.3%       | $2.51    | opus           |
| 18  | Unknown         | 13       | $17.21  | 0.9%    | 1,104,840 | 2.1%        | $1.32    | other          |

---

_Report generated by cc-context-stats_