Stats For Nerds

OpenCode TUI plugin that shows token usage, context window, generation speed, cost, and file changes in the sidebar after each response.

Install

opencode plugin opencode-stats-for-nerds

Restart OpenCode. A Stats for Nerds panel appears in the right sidebar.

What it shows

▼ Stats for Nerds
  Tokens       13.4k in · 1.2k out · 2.0k thinking
  Cached       3.8k read · 2.7k write
  Context      23.2k / 200k (11%)
  ────────────────
  Cost         $0.0070
  Gen Time     2m 14s
  TTFT         1.35s
  Speed        42.3 tok/s
  ────────────────
  Changes      +234 -56 · 5 files
  Model        claude-sonnet-4

Click the header to collapse/expand.

Stats reference

Stat	Scope	Description
Tokens	Cumulative	Input, output, and thinking tokens across all turns
Cached	Cumulative	Prompt cache hits (read = reused, write = newly cached)
Context	Current	Context window used vs model limit, with percentage
Cost	Cumulative	Total session cost at provider rates
Gen Time	Cumulative	Total time the model spent generating
Think Time	Cumulative	Total time the model spent reasoning (off by default)
TTFT	Last response	Time-to-first-token
Speed	Last response	Output tokens per second
Activity	Cumulative	Tool-call steps and invocations (off by default)
Changes	Session	File additions, deletions, and count
Model	Last response	Model ID

Configuration

Disable any stat via tui.json:

{
  "$schema": "https://opencode.ai/tui.json",
  "plugin": [
    ["opencode-stats-for-nerds", {
      "show": {
        "cache": false,
        "activity": true,
        "model": false
      }
    }]
  ]
}

All options default to true except thinkTime and activity.

Key	Default	Controls
tokens	true	Input/output/thinking row
cache	true	Cache read/write row
context	true	Context window used / limit (%)
cost	true	Session cost
genTime	true	Total generation time
thinkTime	false	Total reasoning time
ttft	true	Time-to-first-token
speed	true	Tokens per second
activity	false	Steps and tool calls
changes	true	File additions/deletions
model	true	Model name

Requirements

• OpenCode v1.17+

License

MIT