---
title: "fenglei (@fenglei)"
description: "Rank #690 of 2498 on the Paradev leaderboard, tier 2."
canonical: https://paradev.com/fenglei
last-updated: 2026-10-26
---

# fenglei (@fenglei)

Rank #690 of 2498 on the Paradev leaderboard, tier 2.

URL: https://paradev.com/fenglei

## Standing

- Rank: #690 of 2498
- Tier: Operator
- Tokens: 22.56B all time
- Cost: $28076.72 API-equivalent
- Sessions: 1288
- Tracking: 2026-07-28 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 5 axes, measured over the trailing 30 days.

| Axis | Current | Needed | Met | Measures |
| --- | --- | --- | --- | --- |
| width | 2.0 | 5.5 | no | agents running at once |
| depth | 16.9M | 23.3M | no | tokens per session |
| output | 6.0 | 6.0 | yes | agent PRs merged per week |
| sustain | 28 | 24 | yes | active days in the last 30 |
| cost | $162.41 | <= $104.48 | no | USD per merged PR, lower is better |

## Achievements

- **day-one**, 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: 500
- spend: 10.0K
- tokens: 1.00B

## Contributions

- Active days in the last year: 84
- Busiest day: 2026-10-24 at 933.3M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| claude | claude-opus-5-5 | 10.64B | $6492.59 |
| claude | claude-opus-5 | 5.27B | $11262.39 |
| claude | claude-opus-4-8 | 2.73B | $4975.23 |
| claude | claude-fable-5 | 1.67B | $3166.75 |
| codex | gpt-5.6-sol | 1.63B | $1095.37 |
| codex | gpt-6-astra | 466.0M | $873.95 |
| claude | claude-fable-5-1 | 125.0M | $166.90 |
| claude | claude-sonnet-4-6 | 21.7M | $31.30 |

## Token breakdown

- Uncached input: 2.43B
- Cached input: 19.03B
- Cache write 5m: 1.04B
- Cache write 1h: 19.3M
- Output: 49.3M
- Reasoning output: 12.3M

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