Codex CLI vs Grok 4
A detailed comparison to help you choose the right AI tool for your needs.
Our Pick
Codex CLI
Codex CLI edges out Grok 4.1 with superior overall performance and features that make it the better choice for most users.
Try Codex CLIFeature Comparison
Feature
Codex CLI
Grok 4
Ratings
Overall Rating
4.7
4.6
Coding
4.7
4.5
Writing
4.3
4.4
Reasoning
4.5
4.6
Speed
4.6
4.7
Value
4.8
4.3
Pricing
Monthly Price
$20
$25
Free Tier
Input (per 1M tokens)
$2.5
$5
Output (per 1M tokens)
$10
$15
Features
Context Window
128K
256K
Vision/Images
Audio
Video
Code Generation
AI Agents
Codex CLI
Pros
- Open source (Apache 2.0)
- Multimodal input support
- Local-first privacy
- Rich approvals workflow
- Included with ChatGPT subscription
Cons
- Newer tool with evolving features
- Less mature than Claude Code
Grok 4.1
Pros
- Real-time access to X (Twitter) data
- Best for current events and live data
- Strong coding (74.9% SWE-bench)
- Less filtered/censored responses
- 256K context window
Cons
- Requires X Premium+ subscription
- Less polished than competitors
- Limited enterprise features
- No free tier
Choose Codex CLI if you need:
Rapid prototyping, open-source flexibility, ChatGPT users
Choose Grok 4 if you need:
Current events, real-time data, social media analysis
Ready to get started?
Both tools offer free tiers or trials. Try them out and see which one works best for your workflow.