Claude Sonnet 4 vs GPT-5.4 Pro
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.
Claude Sonnet 4 vs GPT-5.4 Pro: side by side
| Spec | Claude Sonnet 4 | GPT-5.4 Pro | Winner |
|---|---|---|---|
| Intelligence | — | — | Tie |
| Output speed | — | — | Tie |
| Output price | $15.00/1M | $180.00/1M | Claude Sonnet 4 |
| Context | 1000K | 1050K | GPT-5.4 Pro |
| Params | — | — | Tie |
| Provider | Anthropic | OpenAI | Tie |
Claude Sonnet 4
Pros
- +Strong reasoning and coherence over long inputs
- +Careful safety alignment
- +High-quality, detailed responses
Cons
- –Conservative refusals on sensitive topics
- –No native audio or video support
- –May prioritize caution over maximum helpfulness
GPT-5.4 Pro
Pros
- +Handles very large inputs across modalities
- +Strong integration of text, image, and file data
- +Advanced reasoning over extended contexts
Cons
- –Higher latency on maximum-length inputs
- –No native audio or video support
- –Proprietary access with usage constraints
Frequently asked questions
It depends on your needs. Claude Sonnet 4 and GPT-5.4 Pro are both multimodal models; the comparison table above shows where each one leads on the metrics that matter. See the verdict for a recommendation.