Claude Sonnet 4.5 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.
Claude Sonnet 4.5 vs GPT Chat Latest: side by side
| Spec | Claude Sonnet 4.5 | GPT Chat Latest | Winner |
|---|---|---|---|
| Intelligence | — | — | Tie |
| Output speed | — | — | Tie |
| Output price | $15.00/1M | $30.00/1M | Claude Sonnet 4.5 |
| Context | 1000K | 400K | Claude Sonnet 4.5 |
| Params | — | — | Tie |
| Type | Proprietary | Proprietary | Tie |
| Provider | Anthropic | OpenAI | Tie |
Claude Sonnet 4.5
Pros
- +Strong safety alignment
- +Reliable handling of large contexts
- +Careful and detailed reasoning
- +Effective multimodal file support
Cons
- –Can be overly cautious with refusals
- –Vision performance varies by image complexity
- –May produce verbose responses
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. Claude Sonnet 4.5 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.