---
title: "Konstantin Bobenko (@kobo)"
description: "Rank #2036 of 2504 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/kobo
last-updated: 2026-10-26
---

# Konstantin Bobenko (@kobo)

Rank #2036 of 2504 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/kobo

## Standing

- Rank: #2036 of 2504
- Tier: Button pusher
- Tokens: 2.19B all time
- Cost: $1565.06 API-equivalent
- Sessions: 528
- Tracking: 2026-08-17 to 2026-10-14

## 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 | 1.0 | 3.1 | no | agents running at once |
| depth | 3.1M | 10.4M | no | tokens per session |
| sustain | 23 | 17 | yes | active days in the last 30 |
| cost | $272.33 | <= $315.60 | yes | USD per merged PR, lower is better |

## Achievements

- **efficient** (level 3 of 3) at $100, earned 2026-09-11
- **ship-it** (level 2 of 4) at 10, earned 2026-09-11
- **whole-task** (level 1 of 3) at 2.5M, earned 2026-09-11

## Milestones

- sessions: 100
- spend: 100
- tokens: 100.0M

## Contributions

- Active days in the last year: 40
- Busiest day: 2026-10-09 at 209.6M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-5-5 | 977.7M | $580.20 |
| claude | claude-opus-5 | 942.3M | $838.37 |
| codex | gpt-5.6-luna | 64.0M | $1.84 |
| codex | gpt-6.1-sol | 62.8M | $18.14 |
| claude | claude-sonnet-5 | 57.2M | $22.27 |
| claude | claude-opus-4-8 | 52.4M | $80.70 |
| claude | claude-sonnet-5-5 | 20.2M | $12.18 |
| claude | claude-haiku-4-5-20251001 | 3.5M | $1.79 |

## Token breakdown

- Uncached input: 5.1M
- Cached input: 2.11B
- Cache write 5m: 6.6M
- Cache write 1h: 56.0M
- Output: 13.1M
- Reasoning output: 3.3M

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