Gemini 3.1 Pro Preview
Google Gemini 3.1 Pro 预览版，1M 上下文，Pro 级综合能力与多模态理解，适合复杂推理与多模态应用验证。
- Vendor: Google
- Context window: 1M tokens
- Official list price: input $2 / output $12 per 1M tokens
- Access: OpenAI-compatible API via HefuAI Platform (one key for all models)