---
title: "CaiPeterCai (@tsai)"
description: "Rank #2195 of 2498 on the Paradev leaderboard, tier 1."
canonical: https://paradev.com/tsai
last-updated: 2026-10-26
---

# CaiPeterCai (@tsai)

Rank #2195 of 2498 on the Paradev leaderboard, tier 1.

URL: https://paradev.com/tsai

## Standing

- Rank: #2195 of 2498
- Tier: Button pusher
- Tokens: 1.20B all time
- Cost: $579.64 API-equivalent
- Sessions: 168
- Tracking: 2026-09-10 to 2026-10-22

## 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 | 2.4M | 10.4M | no | tokens per session |
| sustain | 19 | 17 | yes | active days in the last 30 |

## Milestones

- spend: 100
- tokens: 100.0M

## Contributions

- Active days in the last year: 26
- Busiest day: 2026-10-17 at 311.9M tokens

## Models

| Provider | Model | Tokens | Cost |
| --- | --- | --- | --- |
| codex | gpt-6.1-sol | 848.5M | $224.56 |
| claude | claude-opus-5-5 | 227.7M | $122.69 |
| codex | gpt-6-astra | 119.6M | $223.35 |
| claude | claude-opus-5 | 7.3M | $8.88 |
| codex | codex-auto-review | 1.2M | $0.05 |
| codex | gpt-6-luna | 224.8K | $0.01 |
| claude | claude-haiku-4-5-20251001 | 220.4K | $0.11 |
| codex | unknown | 0 | $0.00 |

## Token breakdown

- Uncached input: 34.3M
- Cached input: 1.16B
- Cache write 5m: 0
- Cache write 1h: 7.7M
- Output: 4.3M
- Reasoning output: 1.5M

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