---
title: "Jamie(Seunghyeon) Yang (@jamie-seunghyeon-yang)"
description: "Rank #358 of 2498 on the Paradev leaderboard, tier 2."
canonical: https://paradev.com/jamie-seunghyeon-yang
last-updated: 2026-10-26
---

# Jamie(Seunghyeon) Yang (@jamie-seunghyeon-yang)

Rank #358 of 2498 on the Paradev leaderboard, tier 2.

URL: https://paradev.com/jamie-seunghyeon-yang

## Standing

- Rank: #358 of 2498
- Tier: Operator
- Tokens: 45.30B all time
- Cost: $33143.42 API-equivalent
- Sessions: 8218
- Tracking: 2026-08-09 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. Plant Manager 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 | 4.0 | 5.5 | no | agents running at once |
| depth | 7.4M | 23.3M | no | tokens per session |
| sustain | 27 | 24 | yes | active days in the last 30 |

## Achievements

- **plant-floor** (level 1 of 3) at 10, earned 2026-09-07
- **two-hands** (level 1 of 3) at 10, earned 2026-09-07
- **whole-task** (level 2 of 3) at 10.0M, earned 2026-09-07

## Milestones

- sessions: 1.0K
- spend: 10.0K
- tokens: 10.00B

## Contributions

- Active days in the last year: 63
- Busiest day: 2026-08-25 at 3.39B tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-5 | 22.99B | $18160.30 |
| claude | claude-opus-5-5 | 19.70B | $11453.00 |
| claude | claude-fable-5 | 1.43B | $2732.46 |
| claude | claude-opus-4-8 | 460.4M | $361.23 |
| claude | claude-sonnet-5 | 441.9M | $152.78 |
| codex | gpt-6-astra | 107.4M | $165.67 |
| claude | claude-sonnet-5-5 | 79.6M | $44.67 |
| codex | gpt-5.6-sol | 60.7M | $37.75 |

## Token breakdown

- Uncached input: 8.0M
- Cached input: 43.80B
- Cache write 5m: 768.1M
- Cache write 1h: 559.0M
- Output: 168.2M
- Reasoning output: 60.6M

Published voluntarily by the account holder. Source: https://paradev.com/jamie-seunghyeon-yang