---
title: "Benjamin Kofski (@benk)"
description: "Rank #2451 of 2504 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/benk
last-updated: 2026-10-26
---

# Benjamin Kofski (@benk)

Rank #2451 of 2504 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/benk

## Standing

- Rank: #2451 of 2504
- Tier: Button pusher
- Tokens: 71.3M all time
- Cost: $69.94 API-equivalent
- Sessions: 12
- Tracking: 2026-09-04 to 2026-10-02

## 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 | 2.5M | 10.4M | no | tokens per session |
| sustain | 9 | 17 | no | active days in the last 30 |

## Contributions

- Active days in the last year: 9
- Busiest day: 2026-09-30 at 41.5M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-5 | 47.8M | $42.15 |
| codex | gpt-6-astra | 13.1M | $23.11 |
| claude | claude-sonnet-5 | 9.5M | $4.64 |
| codex | gpt-reserve | 862.9K | $0.05 |

## Token breakdown

- Uncached input: 901.9K
- Cached input: 68.7M
- Cache write 5m: 0
- Cache write 1h: 1.2M
- Output: 488.6K
- Reasoning output: 171.4K

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