---
title: "Filip Kostkiewicz (@kosti69)"
description: "Rank #764 of 2502 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/kosti69
last-updated: 2026-10-26
---

# Filip Kostkiewicz (@kosti69)

Rank #764 of 2502 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/kosti69

## Standing

- Rank: #764 of 2502
- Tier: Button pusher
- Tokens: 20.24B all time
- Cost: $8186.39 API-equivalent
- Sessions: 4359
- Tracking: 2026-09-01 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 4 axes, measured over the trailing 30 days.

| Axis | Current | Needed | Met | Measures |
| --- | --- | --- | --- | --- |
| width | 2.0 | 3.1 | no | agents running at once |
| depth | 3.3M | 10.4M | no | tokens per session |
| sustain | 30 | 17 | yes | active days in the last 30 |
| cost | $616.12 | <= $315.60 | no | USD per merged PR, lower is better |

## Achievements

- **plant-floor** (level 1 of 3) at 10, earned 2026-09-30
- **two-hands** (level 1 of 3) at 10, earned 2026-09-30
- **whole-task** (level 1 of 3) at 2.5M, earned 2026-09-30

## Milestones

- sessions: 1.0K
- spend: 1.0K
- tokens: 10.00B

## Contributions

- Active days in the last year: 55
- Busiest day: 2026-10-12 at 1.29B tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| codex | gpt-5.6-sol | 4.19B | $2360.30 |
| codex | gpt-6.1-sol | 3.56B | $104.20 |
| codex | gpt-5.6-luna | 2.92B | $90.95 |
| cursor | grok-bot-default | 2.62B | $1976.19 |
| claude | claude-opus-5 | 1.43B | $1051.35 |
| claude | claude-sonnet-5 | 858.9M | $301.33 |
| claude | claude-opus-5-5 | 730.3M | $727.76 |
| codex | gpt-6-sol | 720.4M | $19.81 |

## Token breakdown

- Uncached input: 541.1M
- Cached input: 19.18B
- Cache write 5m: 366.7M
- Cache write 1h: 80.4M
- Output: 77.5M
- Reasoning output: 20.6M

Published voluntarily by the account holder. Source: https://paradev.com/kosti69