---
title: "cktseng (@ck)"
description: "Rank #1581 of 2499 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/ck
last-updated: 2026-10-26
---

# cktseng (@ck)

Rank #1581 of 2499 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/ck

## Standing

- Rank: #1581 of 2499
- Tier: Button pusher
- Tokens: 5.79B all time
- Cost: $1875.81 API-equivalent
- Sessions: 878
- Tracking: 2026-08-12 to 2026-09-25

## How this tier was reached

Tier is a weighted score across the axes measured for you, so a strong axis offsets a weak one. Operator needs a higher combined score, and cost also caps the tier on its own.
Scored on 3 axes, measured over the trailing 30 days.

| Axis | Current | Needed | Met | Measures |
| --- | --- | --- | --- | --- |
| width | 1.0 | 3.1 | no | agents running at once |
| depth | 4.5M | 10.4M | no | tokens per session |
| sustain | 28 | 17 | yes | active days in the last 30 |

## Milestones

- tokens: 100.0M

## Contributions

- Active days in the last year: 44
- Busiest day: 2026-08-27 at 747.2M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-sonnet-5 | 5.28B | $1582.64 |
| codex | gpt-5.6-sol | 270.9M | $199.16 |
| codex | gpt-5.6-terra | 85.1M | $31.85 |
| claude | claude-haiku-4-5-20251001 | 68.7M | $16.52 |
| codex | gpt-5.6-luna | 35.7M | $1.29 |
| claude | claude-sonnet-4-5-20250929 | 24.0M | $22.41 |
| codex | gpt-5.4-mini | 17.7M | $4.99 |
| claude | claude-opus-5 | 5.4M | $7.44 |

## Token breakdown

- Uncached input: 25.3M
- Cached input: 5.63B
- Cache write 5m: 25.4M
- Cache write 1h: 90.0M
- Output: 18.5M
- Reasoning output: 6.5M

Published voluntarily by the account holder. Source: https://paradev.com/ck