---
title: "Jiří Jelínek (@jjelinek)"
description: "Rank #1815 of 2505 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/jjelinek
last-updated: 2026-10-26
---

# Jiří Jelínek (@jjelinek)

Rank #1815 of 2505 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/jjelinek

## Standing

- Rank: #1815 of 2505
- Tier: Button pusher
- Tokens: 3.87B all time
- Cost: $3110.08 API-equivalent
- Sessions: 385
- Tracking: 2026-08-10 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 | 1.0 | 3.1 | no | agents running at once |
| depth | 8.5M | 10.4M | no | tokens per session |
| sustain | 27 | 17 | yes | active days in the last 30 |

## Achievements

- **whole-task** (level 1 of 3) at 2.5M, earned 2026-09-07

## Milestones

- spend: 100
- tokens: 100.0M

## Contributions

- Active days in the last year: 71
- Busiest day: 2026-08-31 at 233.1M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-4-8 | 2.05B | $1736.23 |
| claude | claude-opus-5 | 1.15B | $873.93 |
| claude | claude-opus-5-5 | 623.6M | $490.96 |
| claude | claude-haiku-4-5-20251001 | 37.5M | $6.71 |
| claude | claude-sonnet-5-5 | 6.1M | $2.25 |

## Token breakdown

- Uncached input: 453.7K
- Cached input: 3.76B
- Cache write 5m: 6.0M
- Cache write 1h: 93.5M
- Output: 13.4M
- Reasoning output: 2.8M

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