pi-openai-fast-mode

Pi extension package for toggling OpenAI Fast Mode priority inference

Packages

Package details

extension

Install pi-openai-fast-mode from npm and Pi will load the resources declared by the package manifest.

npm repo home report

$ pi install npm:pi-openai-fast-mode

Package: pi-openai-fast-mode
Version: 0.3.0
Published: Jul 9, 2026
Downloads: 797/mo · 62/wk
Author: jcmunson
License: MIT
Types: extension
Size: 22.1 KB
Dependencies: 0 dependencies · 1 peer

Pi manifest JSON

{
  "extensions": [
    "./src/index.ts"
  ],
  "image": "https://raw.githubusercontent.com/johncmunson/pi-openai-fast-mode/refs/heads/main/preview-img.png"
}

Security note

Pi packages can execute code and influence agent behavior. Review the source before installing third-party packages.

README

pi-openai-fast-mode

Pi package that adds a Fast Mode toggle for GPT-5.6, GPT-5.5, and GPT-5.4.

Features

Registers /fast [on|off|toggle].
Registers --fast to enable Fast Mode at startup.
Injects service_tier: "priority" into matching OpenAI/OpenAI-Codex provider payloads.
Shows a compact right-aligned TUI fast indicator only when enabled and the current model is configured.
Persists state in user or project scope depending on how the package is loaded.

View on the Pi Package Registry

Install

pi install npm:pi-openai-fast-mode
# or project-local
pi install -l npm:pi-openai-fast-mode

For local development:

pi -e ./src/index.ts

Usage

/fast          # toggle
/fast toggle   # toggle
/fast on       # enable
/fast off      # disable

Start Pi with Fast Mode enabled and persisted:

pi --fast

Default configuration

Fast Mode starts disabled and only applies to exact configured provider/model pairs:

{
  "enabled": false,
  "targets": [
    { "provider": "openai", "model": "gpt-5.4", "serviceTier": "priority" },
    { "provider": "openai", "model": "gpt-5.5", "serviceTier": "priority" },
    { "provider": "openai", "model": "gpt-5.6", "serviceTier": "priority" },
    { "provider": "openai", "model": "gpt-5.6-sol", "serviceTier": "priority" },
    { "provider": "openai", "model": "gpt-5.6-terra", "serviceTier": "priority" },
    { "provider": "openai", "model": "gpt-5.6-luna", "serviceTier": "priority" },
    {
      "provider": "openai-codex",
      "model": "gpt-5.4",
      "serviceTier": "priority"
    },
    {
      "provider": "openai-codex",
      "model": "gpt-5.5",
      "serviceTier": "priority"
    },
    {
      "provider": "openai-codex",
      "model": "gpt-5.6",
      "serviceTier": "priority"
    },
    {
      "provider": "openai-codex",
      "model": "gpt-5.6-sol",
      "serviceTier": "priority"
    },
    {
      "provider": "openai-codex",
      "model": "gpt-5.6-terra",
      "serviceTier": "priority"
    },
    {
      "provider": "openai-codex",
      "model": "gpt-5.6-luna",
      "serviceTier": "priority"
    }
  ]
}

User-scoped state is stored under ~/.pi/agent/extensions/pi-openai-fast-mode/config.json. Project-scoped state is stored under ./.pi/pi-openai-fast-mode/config.json.

Development

npm install
npm run check