GPT-5.2 Codex vs GPT-4 Codex: AI Coding Comparison 2026
Compare GPT-5.2 Codex and GPT-4 Codex — benchmarks, context windows, and coding performance.
GPT-5.2 Codex dominates with 400K context and 56.4% SWE-bench Pro. GPT-4 Codex suits only budget-constrained simple tasks.
Detailed Comparison
A side-by-side analysis of key factors to help you make the right choice.
| Factor | GPT-5.2 CodexRecommended | GPT-4 Codex | Winner |
|---|---|---|---|
| Code Gen | |||
| Context | |||
| Reasoning | |||
| Cost | |||
| Ecosystem | |||
| Total Score | 4/ 5 | 1/ 5 | 0 ties |
Key Statistics
Real data from verified industry sources to support your decision.
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All statistics are from reputable third-party sources. Links to original sources available upon request.
When to Choose Each Option
Clear guidance based on your specific situation and needs.
Choose GPT-5.2 Codex when...
- Need extensive context for complex tasks.
- Focus on high-performance coding.
- Prefer the latest technology.
Choose GPT-4 Codex when...
- Budget constraints limit advanced features.
- Focus on simple coding tasks.
- Need a reliable solution.
Our Recommendation
GPT-5.2 Codex dominates with 400K context and 56.4% SWE-bench Pro. GPT-4 Codex suits only budget-constrained simple tasks.
Need help deciding?
Book a free 30-minute consultation and we'll help you determine the best approach for your specific project.