Codex vs Gemini Code Assist
Codex and Gemini Code Assist are both Code Generation tools in our directory. This side-by-side comparison covers pricing, user ratings, supported platforms, key features and open-source status so you can decide which one fits your needs.
Side-by-side comparison
| Attribute | Codex | Gemini Code Assist |
|---|---|---|
| Vendor | OpenAI | |
| Rating | ★ 4.5 | ★ 4.3 |
| Pricing | Paid | Freemium |
| Platforms | CLI, IDE, Cloud, Web | IDE, Cloud |
| Key features | Cloud sandbox task execution, Codex CLI (open source), IDE extension | IDE completions powered by Gemini, Chat with GCP project context, Enterprise controls on Google Cloud |
| Headquarters | San Francisco, USA | Mountain View, USA |
| Founded | 2025 | 2024 |
| Open source | No | No |
Key differences
- Codex has a higher user rating (4.5★ vs 4.3★).
- Codex is Paid, while Gemini Code Assist is Freemium.
- Codex runs on CLI, IDE, Cloud, Web; Gemini Code Assist runs on IDE, Cloud.
Frequently asked questions
Is Codex or Gemini Code Assist better?
By user rating, Codex scores higher (4.5★ vs 4.3★). Both are capable Code Generation tools, so review the feature comparison for your use case.
Which is cheaper, Codex or Gemini Code Assist?
Codex is Paid and Gemini Code Assist is Freemium. Check each product page for current plan details.
Are Codex and Gemini Code Assist open source?
No — neither Codex nor Gemini Code Assist is open source.