Side-by-side comparison
Anthropic Claude Sonnet Latest vs Gemini 3.1 Pro Preview Custom Tools
Anthropic
Anthropic Claude Sonnet Latest
👁 Vision
🔧 Tools
{} JSON
Input / 1M
$3.0000
Output / 1M
$15.0000
Google
Gemini 3.1 Pro Preview Custom Tools
👁 Vision
🔧 Tools
{} JSON
Input / 1M
$2.0000
Output / 1M
$12.0000
| Anthropic Claude Sonnet Latest | Gemini 3.1 Pro Preview Custom Tools | |
|---|---|---|
| Provider | Anthropic | |
| Context window Maximum tokens (input + output) the model can process in a single request. Glossary → | 1,000,000 | 1,048,576 |
| Capabilities Optional capabilities the model advertises: vision (images), tools (function calling), json_mode (structured output). | vision, tools, json_mode | vision, tools, json_mode |
| Input $ / 1M tokens Cost for tokens you send (prompt + context). Cheaper side highlighted. Glossary → | 3.0000 | 2.0000 |
| Output $ / 1M tokens Cost for tokens the model generates. Output is normally 3–5× pricier than input. Glossary → | 15.0000 | 12.0000 |
Frequently asked questions
Which is cheaper, Anthropic Claude Sonnet Latest or Gemini 3.1 Pro Preview Custom Tools?
Gemini 3.1 Pro Preview Custom Tools is cheaper than Anthropic Claude Sonnet Latest on a 50/50 input/output blend by about $2 per 1M tokens. Exact savings depend on your input-vs-output ratio — use the cost calculator on this page for a workload-specific estimate.
Which has a larger context window, Anthropic Claude Sonnet Latest or Gemini 3.1 Pro Preview Custom Tools?
Gemini 3.1 Pro Preview Custom Tools has the larger context window at 1M tokens versus 1M tokens for Anthropic Claude Sonnet Latest. That means Gemini 3.1 Pro Preview Custom Tools can ingest about 1.0x as much text per request.
What is the difference between Anthropic Claude Sonnet Latest and Gemini 3.1 Pro Preview Custom Tools?
Anthropic Claude Sonnet Latest comes from Anthropic; Gemini 3.1 Pro Preview Custom Tools comes from Google. They differ in pricing, context window, and supported capabilities — see the side-by-side table on this page for the exact figures, refreshed nightly.