StackReplay: your AI coding, measured.

StackReplay

3 min read Original article ↗

› LOCAL HISTORY / CLEAR NUMBERS

Scan Claude Code, Codex, OpenCode, Command Code and Hermes logs in your browser. See tokens, speed, models, rhythm and GitHub activity.

SAMPLE / 30 DAYS

Fictional history. Real components. Your scan supplies your numbers.

Total tokens

20.4B

20,430,723,847 tokens through

12

models ·

12

named

Cache read20.2B98.7%

Input158M0.8%

Cache write28.7M0.1%

Output76.3M0.4%

API value

$3,378

LIST-PRICE ESTIMATE · 98% OF REQUESTS PRICED

New tokens

263M

INPUT + OUTPUT + CACHE WRITE

Models

12

12 NAMED · SAMPLE

Current streak · all time

23days

LONGEST 23 DAYS · ALL TIME

Sessions

3,079

29 DAYS ACTIVE

1,110 GitHub contributions alongside 20.4B AI tokens

1,110

SAME DATES · ACTIVITY, NOT CAUSATION

23 days in a row with AI in this period

23 days

CURRENT AND LONGEST RUN THIS PERIOD

Cached context would have cost $26,330 more at full input price

$26,330

MATCHED CACHE READS AT FULL INPUT PRICE

DeepSeek-V4.1-Flash accounted for 50% of your tokens

50%

10.4B OF 20.4B TOKENS

01

Tokens in, code out

Tokens above the line. Public GitHub contributions below.

TOKENS / DAYGITHUB / DAY / SAMPLE

1.06B2.12B0Sep 7: 522M tokens · 50 GitHub contributionsSep 8: 1.02B tokens · 38 GitHub contributionsSep 9: 892M tokens · 42 GitHub contributionsSep 10: 346M tokens · 32 GitHub contributionsSep 11: 1.12B tokens · 61 GitHub contributionsSep 12: 544M tokens · 28 GitHub contributionsSep 13: 0 tokens · 3 GitHub contributionsSep 14: 797M tokens · 30 GitHub contributionsSep 15: 279M tokens · 33 GitHub contributionsSep 16: 514M tokens · 57 GitHub contributionsSep 17: 298M tokens · 34 GitHub contributionsSep 18: 690M tokens · 64 GitHub contributionsSep 19: 825M tokens · 21 GitHub contributionsSep 20: 64.5M tokens · 18 GitHub contributionsSep 21: 665M tokens · 24 GitHub contributionsSep 22: 709M tokens · 47 GitHub contributionsSep 23: 808M tokens · 16 GitHub contributionsSep 24: 825M tokens · 10 GitHub contributionsSep 25: 2.12B tokens · 88 GitHub contributionsSep 26: 404M tokens · 45 GitHub contributionsSep 27: 1.13B tokens · 47 GitHub contributionsSep 28: 952M tokens · 65 GitHub contributionsSep 29: 52.4M tokens · 3 GitHub contributionsSep 30: 429M tokens · 24 GitHub contributionsOct 1: 657M tokens · 29 GitHub contributionsOct 2: 500M tokens · 51 GitHub contributionsOct 3: 923M tokens · 64 GitHub contributionsOct 4: 1.19B tokens · 26 GitHub contributionsOct 5: 819M tokens · 40 GitHub contributionsOct 6: 334M tokens · 20 GitHub contributions88SEP 7SEP 21OCT 6

GitHub contributions

1,110

ILLUSTRATIVE PUBLIC CALENDAR

Tokens / contribution

18.4M

COUNTS ACTIVITY, NOT CODE QUALITY

02

Speed

Output tokens per second. Band shows the middle half of replies.

MODEL04080120160MEDIANWAITREPLIES

0 tok/s160 tok/s

Gemini 3.5 Flash

120.8tok/s

1,836

GLM 5.3 Flash

110.0tok/s

2,222

Claude Haiku 4.5

103.1tok/s

1,017

DeepSeek-V4.1-Flash

96.1tok/s

64,063

GPT-6 Astra

78.7tok/s

4,523

Claude Sonnet 5.5

67.2tok/s

3,229

DeepSeek-V4-Pro-0813

51.0tok/s

3,643

Gemini 3.1 Pro

43.9tok/s

5,539

Claude Opus 5.5

38.0tok/s

12,310

Fastest median

120.8tok/s

Gemini 3.5 Flash

Replies timed

126,283

FROM PROMPT TO FINISHED REPLY

03

Models

Where the tokens went, and their value at API list prices.

MODELDEVELOPERTOKENSSHAREAPI VALUETOK/S
DeepSeek-V4.1-FlashDeepSeek10.4B50.7%$6896.1
GPT-6 SolOpenAI2.98B14.6%$74862.2
Claude Opus 5.5Anthropic2.02B9.9%$71138.0
GLM 5.3Z.ai1.47B7.2%$41752.7
Gemini 3.1 ProGoogle891M4.4%$30943.9

04

Rhythm

Requests by weekday and hour. Sample times are UTC.

0003060912151821

MODEL CALLS · 0 … 4,122

Busiest day

SEP 25

BY REQUESTS

After midnight

10%

MIDNIGHT TO 5 AM

06

Private by design

Your logs never leave this browser. Sharing uploads only the numbers on your card.

READ
Model names, token counts and timestamps from the history files you choose.

NEVER READ
Prompts, responses or code. No sign-in files or account profiles.

RUNS HERE
A Web Worker in your browser counts your history on this device.

WHAT LEAVES
Nothing from your logs. A share link uploads only your card's numbers, GitHub gets only your username, and the site counts page visits with Cloudflare Web Analytics.

Read the counting and privacy details ↗

07

Your tools. One view.

Supported local coding histories, together.

Claude CodeCodexOpenCodeCommand CodeHermesT3 Code