Compare models
Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.
| Attribute | Claude Sonnet 5.5claude-sonnet-5.5 | Gemini 3 Pro Image (Google Vertex AI)gemini-3-pro-image-vertex |
|---|---|---|
| Pricing | ||
| Input | $2.00 / 1M | — |
| Output | $10.00 / 1M | — |
| Cache Write (5m) | $2.50 / 1M | Not applicable |
| Cache Write (1h) | $4.00 / 1M | Not applicable |
| Cache Read | $0.20 / 1M | Not applicable |
| Web Search | $0 / 1M | — |
| Request | — | $0.134 / request |
| Billing | — | Pay Per Request |
| Context | ||
| Max context | 1M | N/A |
| Max output | N/A | N/A |
| Capabilities | ||
| Vision | Yes | Yes |
| Function Calling | Yes | No |
| JSON Mode | Yes | No |
| Streaming | Yes | No |
| Catalogue | ||
| Provider | Anthropic | |
| Category | chat | image |
| Charge type | Pay As You Go | Pay Per Request |
| Released | — | — |
| Description | ||
| Summary | Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor. | Gemini 3 Pro Image served from Google Vertex AI. Billed per image at US$0.134. Call it through /v1/chat/completions with stream set to false; the image is returned in the message content as a base64 data URI. |