Model Comparator
Compare context windows, modalities, tool support, and more across popular models. Reference data only — always confirm with providers.
Reference specs for planning — verify context limits, pricing, and features with each provider before shipping.
| Attribute | GPT-4oOpenAI | Claude 3.5 SonnetAnthropic |
|---|---|---|
| Providerdiffers | OpenAI | Anthropic |
| Context windowdiffers | 128K | 200K |
| Max output tokensdiffers | 16K | 8K |
| Input modalities | text, image | text, image |
| Output modalities | text | text |
| Tool / function calling | Yes | Yes |
| Structured output | Yes | Yes |
| Streaming | Yes | Yes |
| Open weights | No | No |
| Latency profile | Balanced | Balanced |
| Relative costdiffers | High ($$$) | Medium ($$) |
| Knowledge cutoffdiffers | Oct 2023 (varies by deployment) | Apr 2024 |
| Best fordiffers | General reasoning; Vision; Tool use; Structured outputs | Long context; Writing; Code; Instruction following |
| Notesdiffers | Strong default for multimodal apps and agents. | Often preferred for long documents and careful reasoning. |
Is the comparison data always current?
It is reference data and may change. Always confirm specifics with the model provider before relying on them.
Which models are included?
Popular families such as GPT, Claude, Gemini, and Llama are covered.
Does it send any data externally?
No. The comparator is a static reference that runs entirely in your browser.