Gemini 3.8 Flash
Use an endpoint supported by this model.
Get a key for this setup →const response = await fetch('https://api.minirouter.sh/v1/chat/completions', { method: 'POST', headers: { Authorization: `Bearer ${process.env.MINIROUTER_KEY}`, 'Content-Type': 'application/json', }, body: JSON.stringify({ model: 'google/gemini-3.8-flash', messages: [{ role: 'user', content: 'Why is the sky blue?' }], max_tokens: 1024, }),}) const data = await response.json()console.log(data.choices[0].message.content)50% offCurrent Gemini 3.8 Flash token rates are half the standard rate through December 31, 2026. Offer details ↗
- Input / 1M
- $0.7875
- Standard $1.575
- Output / 1M
- $3.9375
- Standard $7.875
- Context
- 1M
- Max output
- 66K
Overview
Overview
Gemini 3.8 Flash is the high-efficiency, cost-effective powerhouse of the Gemini 3 family. It delivers Pro-level agentic capabilities, major leaps in code generation and terminal execution. 3.8 Flash serves as the primary agentic workhorse in the Gemini 3 family, bridging the gap between deep-reasoning Pro models and high-throughput Flash-Lite models while delivering high token efficiency and multi-step multimodal processing.
- Model type
- language
- Context window
- 1,000,000
- Maximum output
- 65,535
- Input / 1M tokens
$1.575$0.7875- Output / 1M tokens
$7.875$3.9375- Released
- 2026-09-02
Prices include the MiniRouter fee. Compatibility snapshot: 2026-08-06. Input: text, image. Output: text.
Endpoints
Endpoints
Platform-funded routing only. Caller BYOK credentials and OIDC-based upstream authentication are intentionally excluded; authenticate with a MiniRouter bearer key.
Paths
/v1/chat/completions/v1/messages/v1/responsesStructured output
Not enforced; a requested format is dropped and the answer is plain text. How it works
Captured parameters: max_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning.
API
API
Switch between Chat Completions, Messages and client configurations in the setup panel. Every snippet keeps the model ID unchanged.
Base URL
https://api.minirouter.sh/v1Model ID
google/gemini-3.8-flashProviders
Providers
MiniRouter selects from the configured routes below. Priority is the catalog order, not a latency or availability score.
| Provider | Priority | Input / 1M | Output / 1M | Parameters | Access |
|---|---|---|---|---|---|
vercel | 1 | $0.7875 | $3.9375 | max_tokens, temperature, stop, tools, tool_choice, reasoning, include_reasoning | MiniRouter balance |