GPT-5.3-Codex vs GPT Chat Latest
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-5.3-Codex vs GPT Chat Latest: side by side
| Spec | GPT-5.3-Codex | GPT Chat Latest | Winner |
|---|---|---|---|
| Intelligence | 53.6 | — | Tie |
| Output speed | 101 t/s | — | Tie |
| Output price | $14.00/1M | $30.00/1M | GPT-5.3-Codex |
| Context | 400K | 400K | Tie |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | OpenAI | OpenAI | Tie |
GPT-5.3-Codex
Pros
- +Specialized for programming workflows
- +Extensive context handling
- +Support for diverse input types
Cons
- –Narrower focus than general-purpose models
- –Performance tied to input quality
GPT Chat Latest
Pros
- +Seamless handling of text, image, and file inputs
- +Strong performance on extended documents
- +Flexible across creative and analytical tasks
- +Natural multi-turn dialogue
Cons
- –Can still hallucinate facts or details
- –Large context increases cost and latency
- –No native real-time external tool access
Frequently asked questions
It depends on your needs. GPT-5.3-Codex and GPT Chat Latest are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.