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Google Gemini 3.8 Flash: AI 大语言模型

使用 Google Gemini 3.8 Flash 生成文本并分析图像。快速、低成本的多模态聊天与推理。免费试用，按次生成付费。 Gemini 3.8 Flash 是Google's latest high-speed multimodal language model, built for real-time chat, coding, and agentic workloads. It accepts text and image inputs in a single request, 支持a configurable system prompt, and offers adjustable reasoning depth for balancing latency against thoroughness. Its large context window and low latency make it a strong fit for production chat assistants, document summarization, and coding copilots that need fast, cheap responses at scale. 对于heavier reasoning workloads that need a larger context or deeper multi-step logic, see Gemini 3.1 Pro or Gemini 3 Pro.

交互式模型控制

使用 Google Gemini 3.8 Flash 生成文本并分析图像。快速、低成本的多模态聊天与推理。免费试用，按次生成付费。

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概览

关于此模型

Gemini 3.8 Flash 是Google's latest high-speed multimodal language model, built for real-time chat, coding, and agentic workloads. It accepts text and image inputs in a single request, 支持a configurable system prompt, and offers adjustable reasoning depth for balancing latency against thoroughness. Its large context window and low latency make it a strong fit for production chat assistants, document summarization, and coding copilots that need fast, cheap responses at scale. 对于heavier reasoning workloads that need a larger context or deeper multi-step logic, see Gemini 3.1 Pro or Gemini 3 Pro.

1Conversational Assistants: Power fast, low-latency multi-turn chat experiences for support bots and in-app assistants.
2Document Summarization: Condense long text or scanned/photographed documents (via image_url) into concise summaries.
3Coding Copilots: Generate and explain code snippets, debug error messages, and answer technical questions quickly.
4Content Moderation & Classification: Tag, screen, or route incoming text and images at high volume and low per-call cost.
5Visual Q&A: Answer natural-language questions about an uploaded image without needing a separate vision pipeline.
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价格与价值

成本分析

muapiapp$2.50/M input, $12.50/M output

按 Token 计费，每次调用最低 $0.0002。

Fal.ai暂不可用

No dedicated Gemini 3.8 Flash endpoint at this time.

Replicate暂不可用

No dedicated Gemini 3.8 Flash endpoint at this time.

** 竞品价格根据相似模型架构和使用层级估算。

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技术详情

配置参数

提示词string

提供给模型的用户消息或指令。

默认值Summarize the key points of the attached image.
图像 URLstring

作为多模态输入的可选图像 URL。

默认值undefined
系统提示词string

可选的系统级指令，用于引导模型行为。

默认值You are a helpful assistant that responds concisely.
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实施指南

开发者文档

标准（异步）

POST /api/v1/gemini-3-8-flash — returns a request_id; poll for the result via /api/v1/predictions/{id}/result.

流式传输（SSE）

POST /api/v1/gemini-3-8-flash/stream — returns a live Server-Sent Events stream (Content-Type: text/event-stream) with incremental text chunks as the model generates its response.

cURL 示例

curl -X POST "https://api.muapi.ai/api/v1/gemini-3-8-flash" \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Summarize the key differences between REST and GraphQL APIs.",
    "system_prompt": "You are a concise technical writer."
  }'
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常见问题

常见问答

What 是Gemini 3.8 Flash?

Gemini 3.8 Flash 是Google's fast, cost-efficient multimodal language model for text and image understanding, tuned for real-time chat, summarization, and coding assistance.

How 是pricing calculated for Gemini 3.8 Flash?

价格是token-based at $2.50 每百万输入 token 收费 $12.50 per million 输出tokens, with a minimum charge of $0.0002 per call.

Does Gemini 3.8 Flash support image inputs?

可以。 Pass an image_url alongside your prompt to ask questions about, summarize, or describe an image in the same request.

Can I set a system prompt?

可以，use the system_prompt field to steer the model's tone, persona, or response format across the conversation.

How do I choose between the async and streaming endpoints?

使用 the streaming endpoint (/gemini-3-8-flash/stream) for interactive chat UIs where the user should see the response appear token-by-token. 使用 the async endpoint (/gemini-3-8-flash) for background jobs, batch processing, and workflow automation.

What's the difference between Gemini 3.8 Flash and Gemini 3.7 Flash?

Both are fast multimodal chat models in the same family; Gemini 3.8 Flash 是Google's newer release with improved reasoning and response quality at the same input/output field structure, so existing integrations built for 3.7 Flash migrate over with no code changes beyond the endpoint name.