Amp is freemium — a usable free tier with paid plans above it. OpenAI Codex CLI is freemium — a usable free tier with paid plans above it. Both are listed under Terminal & CLI Agents, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.
Amp is freemium — a usable free tier with paid plans above it and is listed for multi-model routing across frontier models with no artificial usage caps. OpenAI Codex CLI is freemium — a usable free tier with paid plans above it and is listed for #1 on Terminal-Bench with GPT-5-series. Both sit in Terminal & CLI Agents.
Neither — Amp and OpenAI Codex CLI are both freemium, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.
Choose Amp if you need multi-model routing across frontier models with no artificial usage caps; choose OpenAI Codex CLI if you need #1 on Terminal-Bench with GPT-5-series. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.
| Amp | OpenAI Codex CLI | |
|---|---|---|
| Pricing tier | Free tier + paid plans | Free tier + paid plans |
| Free to start | Yes | Yes |
| Category | Code & Development | Code & Development |
| Type | Terminal & CLI Agents | Terminal & CLI Agents |
| Listed capabilities |
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| Tags | amp, sourcegraph amp, agentic coding, cli coding agent, subagents, oracle | cli, codex, openai, agent, terminal, free |
| Website | ampcode.com | openai.com |
| Full page | Amp details → | OpenAI Codex CLI details → |
| Alternatives | Amp alternatives → | OpenAI Codex CLI alternatives → |