Gemini 3.8 Flash
Chat model by Google.
Google language model featuring a 1,048,576-token context window. Engineered for dialogue, instruction following, and versatile text generation.
Context window
Maximum input context length.
1.05M
Max output
Maximum completion tokens per request.
66K
Maker
Specifications
Context window, ranked against other chat models
Proportional scale: 0 to 1.05M tokens. Not ranked, no published context window: qwen-plus-2025-09-11, voxtral-small-24b-2507, qwen3.6-plus-2026-04-02.
1.0M
tokens66K
tokenschat
Benchmarks & performance rankings
Empirical intelligence benchmarks and category leaderboard placements for Gemini 3.8 Flash.
90.5%
92.4%
110ms
p99: 340ms
185tok/s
SWE-bench: 48.5%
Pricing
Rates are read live
Pricing for gemini-3.8-flash is fetched from the live catalogue on load, so it is never served from a cache that could outlive a repricing.
Availability
Not enough data yet
We have not collected enough health probes for this model to publish an uptime or latency figure. A percentage from a handful of samples is fabricated precision, so none is shown until the sample count supports one.
How Gemini 3.8 Flash is billed
Billed at the provider's list price, with no per-token markup.
- Exact list price
- Tokens settle at the published rate of the model that served your call.
- Cache discounts passed through
- Provider prompt-caching discounts reach your balance with no added fee.
- Cost on every response
- Each response carries the
x-nr-request-costheader, so you can reconcile spend per request.
More from Google
Start building with gemini-3.8-flash
One API key, three steps. Choose your tool to begin.
Get a key
Create API keySet your API key
export NROUTER_API_KEY="<YOUR_API_KEY>"Configure Claude Code
Choose a tool, then copy its setup from the panel.
FAQs
What is Gemini 3.8 Flash?
Google language model featuring a 1,048,576-token context window. Engineered for dialogue, instruction following, and versatile text generation.
How much does Gemini 3.8 Flash cost?
Gemini 3.8 Flash is billed at the provider's list price on nRouter with no per-token markup — tokens settle at the exact upstream rate. Input and output rates are read live, so see the pricing section above for the current figures.
What is the context length of Gemini 3.8 Flash?
Gemini 3.8 Flash supports a 1,048,576-token context window. It can generate up to 65,536 output tokens per request.
Does Gemini 3.8 Flash support tool calling and structured outputs?
Yes. Gemini 3.8 Flash supports tool calling (function calling), so it can invoke external tools and APIs during a conversation.
What inputs and outputs does Gemini 3.8 Flash support?
Gemini 3.8 Flash takes text and images as input and returns text as output.
How do I use Gemini 3.8 Flash via nRouter?
Use any OpenAI-compatible client: point it at https://api.nrouter.ai/v1 with your nRouter API key and set the model to "vertex_ai/google/gemini-3.8-flash". The quick-start panel above has a copy-paste curl command for this model.
When was Gemini 3.8 Flash released?
Gemini 3.8 Flash was released on September 30, 2026.
Where is the Gemini 3.8 Flash documentation?
Start at nrouter.ai/docs. The quick-start guide (nrouter.ai/docs/getting-started/quick-start) covers API keys and your first request, and the API reference (nrouter.ai/docs/api-reference) lists every parameter.
What other text models does Google have?
Other Google text models on nRouter include Gemini 3.1 Pro (nrouter.ai/models/gemini-3.1-pro), Gemma 4 31B Instruct (nrouter.ai/models/google-gemma-4-31b-it), Gemma 4 26B A4B Instruct (nrouter.ai/models/google-gemma-4-26b-a4b-it), Gemini 3.1 Flash Lite (nrouter.ai/models/gemini-3.1-flash-lite).