---
title: "Shinya Kobayashi (@usa2jp)"
description: "Rank #664 of 2499 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/usa2jp
last-updated: 2026-10-26
---

# Shinya Kobayashi (@usa2jp)

Rank #664 of 2499 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/usa2jp

## Standing

- Rank: #664 of 2499
- Tier: Button pusher
- Tokens: 23.73B all time
- Cost: $19995.06 API-equivalent
- Sessions: 3630
- Tracking: 2026-08-04 to 2026-10-20

## 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 | 3.5M | 10.4M | no | tokens per session |
| sustain | 23 | 17 | yes | active days in the last 30 |

## Milestones

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

## Contributions

- Active days in the last year: 63
- Busiest day: 2026-08-26 at 3.45B tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| codex | gpt-5.6-sol | 10.22B | $7180.87 |
| claude | claude-opus-5 | 6.10B | $5248.94 |
| claude | claude-fable-5 | 2.62B | $4438.39 |
| claude | claude-sonnet-5 | 1.52B | $752.99 |
| codex | gpt-5.6-terra | 888.5M | $267.08 |
| claude | claude-fable-5-1 | 534.3M | $1171.70 |
| codex | unknown | 446.6M | $11.46 |
| codex | gpt-6-astra | 404.4M | $537.37 |

## Token breakdown

- Uncached input: 342.1M
- Cached input: 22.96B
- Cache write 5m: 9.4K
- Cache write 1h: 339.6M
- Output: 86.7M
- Reasoning output: 35.4M

Published voluntarily by the account holder. Source: https://paradev.com/usa2jp