Gemini 3.8 Flash

Google's most intelligent Flash model for long-horizon software engineering, autonomous agents, and complex enterprise workflows.

MultimodalThinkingToolsFiles1M Context

Context Window

1M tokens

gemini-3.8-flash

Max Output

1M tokens

Input

$0.675$0.75

10% off

1M tokens

Output

$3.375$3.75

10% off

1M tokens

Model Codegemini-3.8-flash

Playground

Model Code

gemini-3.8-flash

Reference inputs

Reference Images0/10

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Output

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Pricing

Plan	Context Window	Max Output	Input	Output	Cache Write	Cache Read
gemini-3.8-flash	1M tokens	-	$0.675$0.7510% off 1M tokens	$3.375$3.7510% off 1M tokens	-	-

Context caching · $0.0675 · 1M tokens

README

Gemini 3.8 Flash is Google's most intelligent Flash-class model, designed for long-horizon software engineering, autonomous agents, and complex enterprise workflows. It is a mandatory-thinking model with multimodal input (text, image, audio, video, PDF) and text output, served over the Gemini native protocol.

Gemini 3.8 Flash is a mandatory-thinking model: every request spends tokens on reasoning before producing the answer, so max_tokens should be set well above the expected answer length.
It supports multimodal input (text, image, audio, video, PDF) with text output, tool use, and file handling over a 1M-token context window.
Typical simple request latency is 3-14 seconds with good stability; long-tail requests may occasionally take tens of seconds.

API

Use the API docs for request format, parameters, and integration details.

Google's most intelligent Flash model for long-horizon software engineering, autonomous agents, and complex enterprise workflows.

Model Code

gemini-3.8-flash

View API Docs

API

Endpoint

POST /v1beta/models/{model}:generateContent

Authentication

x-goog-api-key: YOUR_REACH_API_KEY
Content-Type: application/json

Example

curl -X POST "https://direct.reachapi.ai/v1beta/models/YOUR_MODEL_ID:generateContent" \
  -H "x-goog-api-key: YOUR_REACH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "contents": [
      {
        "role": "user",
        "parts": [
          {
            "text": "Introduce ReachAPI in one sentence."
          }
        ]
      }
    ],
    "generationConfig": {
      "temperature": 0.2
    }
  }'

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Gemini 3.8 Flash

Playground

Pricing

README

API

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