Compare Claude Sonnet 4.5 (Anthropic) and Gemini 3.1 Pro Preview (Google) by price, context, capabilities, and latency.
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| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.5anthropic/claude-sonnet-4.5 | Anthropic | $3 / 1M tokens | $15 / 1M tokens | 200k | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 1904-2753ms | Catalog | Platform curated |
| Gemini 3.1 Pro Previewgoogle/gemini-3.1-pro-preview | Starting at $2 / 1M tokens | $12 / 1M tokens | 1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 2140-4141ms | Catalog | Platform curated |
FAQ
Gemini 3.1 Pro Preview is cheaper ($2 / 1M tokens input / $12 / 1M tokens output) vs Claude Sonnet 4.5 ($3 / 1M tokens input / $15 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
Gemini 3.1 Pro Preview is larger (1M tokens) vs 200k tokens.
Both target Vision. Pick Gemini 3.1 Pro Preview to optimize cost, or Gemini 3.1 Pro Preview for the longer context window. Test both on real prompts before committing production traffic.