GPT-5.1-Codex-Max vs GPT-5.4 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-5.1-Codex-Max vs GPT-5.4 Nano: side by side
| Spec | GPT-5.1-Codex-Max | GPT-5.4 Nano | Winner |
|---|---|---|---|
| Intelligence | — | 44 | Tie |
| Output speed | — | 147 t/s | Tie |
| Output price | $10.00/1M | $1.25/1M | GPT-5.4 Nano |
| Context | 400K | 400K | Tie |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | OpenAI | Tie |
GPT-5.1-Codex-Max
Pros
- +Handles very large contexts
- +Strong coding focus
- +Combines text and image inputs
- +Suitable for complex technical workflows
Cons
- –Limited to text and image modalities
- –High resource demands for large contexts
- –No support for other media types
GPT-5.4 Nano
Pros
- +Very large 400k token context
- +Handles file, image, and text inputs
- +Multimodal flexibility
Cons
- –Nano size may limit depth on complex tasks
- –No audio or video modalities
Frequently asked questions
It depends on your needs. GPT-5.1-Codex-Max and GPT-5.4 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.