---
title: "Kristof Verslegers (@xtof)"
description: "Rank #1599 of 2501 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/xtof
last-updated: 2026-10-26
---

# Kristof Verslegers (@xtof)

Rank #1599 of 2501 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/xtof

## Standing

- Rank: #1599 of 2501
- Tier: Button pusher
- Tokens: 5.66B all time
- Cost: $4366.49 API-equivalent
- Sessions: 1439
- Tracking: 2026-08-04 to 2026-10-26

## 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 | 2.0 | 3.1 | no | agents running at once |
| depth | 3.4M | 10.4M | no | tokens per session |
| sustain | 22 | 17 | yes | active days in the last 30 |

## Achievements

- **two-hands** (level 1 of 3) at 10, earned 2026-10-02
- **whole-task** (level 1 of 3) at 2.5M, earned 2026-10-02

## Milestones

- sessions: 100
- spend: 1.0K
- tokens: 1.00B

## Contributions

- Active days in the last year: 55
- Busiest day: 2026-09-08 at 335.0M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-5-5 | 2.54B | $1068.54 |
| claude | claude-fable-5-1 | 1.56B | $1750.52 |
| claude | claude-opus-5 | 645.9M | $529.05 |
| claude | claude-fable-5 | 577.2M | $904.67 |
| claude | claude-sonnet-5 | 327.4M | $108.33 |
| claude | claude-sonnet-5-5 | 3.6M | $2.32 |
| claude | claude-haiku-5-5 | 1.7M | $1.40 |
| claude | claude-opus-4-8 | 693.2K | $1.55 |

## Token breakdown

- Uncached input: 461.1K
- Cached input: 5.48B
- Cache write 5m: 56.8M
- Cache write 1h: 93.8M
- Output: 25.0M
- Reasoning output: 8.8M

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