Ante vs. Codex CLI

Feature	Ante	Codex CLI
Tagline	Self-contained Rust agent harness with native offline inference	Lightweight coding agent that runs in your terminal
Website	https://ante.run/	https://openai.com/codex
Language	rust	rust
Release Date	December 23, 2025	April 30, 2025
Last Updated	September 4, 2026	June 29, 2026
Provider Type	Independent	AI Lab
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	basic	deep
Multi-File Editing	Yes	Yes
Auto Test Running	No	Yes
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	Yes
IDE Integration	None shipped; `ante serve` exposes a JSONL protocol for editor plugins	VS Code, Zed (via ACP)
Hooks / Extensions	No	Yes
Web Search	Yes	Yes
Local Model Support	Yes	Yes
Context Window	Model-dependent	Model-dependent
Terminal Bench 2.0	#24 · 69.4% ±2.1 1	#6 · 82.0% ±2.2 2
Supported Models	17 built-in presets: Anthropic, OpenAI, Google Gemini and Vertex, xAI Grok, DeepSeek, OpenRouter, Zai, Ali Coding Plan, Antix, plus any OpenAI-compatible endpoint via ~/.ante/catalog.json and any local GGUF model through the bundled llama.cpp	All frontier GPT, Codex models: GPT-5.6 Sol / Terra / Luna, GPT-5.5, GPT-5.4 pro, GPT-5.3-Codex, optional custom models.
Supported Subscriptions	Claude Code ChatGPT	ChatGPT
Pricing Model	Free, BYOK	Subscription
Free Tier	Yes	No
Price Range	Free (alpha preview)	$20-200/mo
Source Code Availability	Proprietary Software	Open Source (Apache-2.0)
Source Code	https://github.com/AntigmaLabs/ante	https://github.com/openai/codex
Development State	active	active

¹ Ante tested with Gemini 3 Pro on Terminal Bench v2.0.

² Codex CLI tested with GPT-5.5 on Terminal Bench v2.0.