GPT-5.2-Codex vs GPT-5 Nano
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
GPT-5.2-Codex vs GPT-5 Nano: side by side
| Spec | GPT-5.2-Codex | GPT-5 Nano | Winner |
|---|---|---|---|
| Intelligence | 40.1 | 19.9 | GPT-5.2-Codex |
| Output speed | 146 t/s | 159 t/s | GPT-5 Nano |
| Output price | $14.00/1M | $0.40/1M | GPT-5 Nano |
| Context | 400K | 400K | Tie |
| Params | — | — | Tie |
| Provider | OpenAI | OpenAI | Tie |
GPT-5.2-Codex
Pros
- +Very large context window for extended inputs
- +Strong coding specialization
- +Seamless integration of text and image data
Cons
- –Restricted to text and image modalities
- –High resource demands at maximum context length
- –No native support for audio or video
GPT-5 Nano
Pros
- +Handles very large contexts efficiently
- +Supports text, image, and file inputs
- +Lightweight design for faster responses
Cons
- –Lower capability depth than full-scale models
- –May struggle with highly complex reasoning
- –Trade-off in advanced task performance
Frequently asked questions
It depends on your needs. GPT-5.2-Codex and GPT-5 Nano are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.