OpenAI's coding agent across CLI, IDE extension, ChatGPT and cloud, with automatic PR review.
WebsiteProvisional comparison
OpenAI Codex vs Amp
OpenAI Codex is provisional S-tier and Amp is provisional A-tier on Terminal Coding Agents. Rankings are never for sale.
Full Terminal Coding Agents tier list
A
Amp
Coding agent and dev environment from Sourcegraph lineage; runs unattended or locally via CLI.
Website| Field | OpenAI Codex | Amp |
|---|---|---|
| Tier | S · provisional | A · provisional |
| Why | Open-source CLI (129k+ stars) plus first-party OpenAI models, included in ChatGPT plans. | Frontier-focused agent with unattended and local modes; pricing needs verification. |
| Pricing | included in ChatGPT plans · starts at $20/mo (ChatGPT Plus) | Pricing not verified |
| GitHub stars | 129,388 | — |
| Last push | Oct 15, 2026 | — |
| Last verified | Oct 15, 2026 | Oct 15, 2026 |