Traffic rank on Composite
#22 of 185
0.86% of tokens and 0.82% of requests over 30 days.
AI model
Google: Gemini 3.8 Flash
google/gemini-3.8-flash
Google: Gemini 3.8 Flash is a 1,048,576-token model served on Composite at $0.469 per million tokens in and $2.34 per million tokens out. Ranked #22 of 185 models by traffic on Composite over the last 30 days, taking 0.86% of tokens and 0.82% of requests. 1 up and 1 down from 2 votes. A positive score is published once a model reaches 5 votes. Measured on Composite, 99.0% of its last 100 requests on Composite succeeded, the typical first token arrives in 6766 ms, output runs at about 139.5 tokens per second.
Try in PlaygroundSpecifications
| Model ID | google/gemini-3.8-flash |
|---|---|
| Provider | Google AI Studio |
| Context window | 1,048,576 tokens |
| Accepts | text, image, video, file, audio |
| Returns | text |
| Input price | $0.469 per million tokens |
| Output price | $2.34 per million tokens |
| Prompt caching | Supported — cached input is billed at the provider's cache rate, on credits and plans alike |
| Image input | $4.7e-7 per image |
| Audio input | $4.7e-7 per second |
| Reasoning tokens | $2.34 per million tokens |
| Web search | $0.0175 per result |
| Thinking | Always on for this model |
| Moderated | No |
| Cost on a monthly plan | About 4.9 plan credits per typical call (8k in, 1k out) |
| Routing endpoints | 2 (base plus 1 routing variant) |
Success rate
99.0%
Across the last 100 requests Composite served for this model.
Time to first token
6766 ms
Median across the same sample.
Output speed
139.5 tok/s
Median generation rate after the first token.
Prompt cache hits
34.3%
Share of prompt tokens served from the provider's cache over 7 days.
Routing variants
The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.
| Route | Model ID | Provider | Price |
|---|---|---|---|
| cheapThink | google/gemini-3.8-flash:cheapThink |
Google AI Studio | $0.469 per million tokens input · $2.34 per million tokens output |
Pricing
$0.469 per million tokens input · $2.34 per million tokens output
Credits pay the provider’s price plus 25%; cache hits cost less.
On a monthly plan, a typical call (8k tokens in, 1k out) uses about 4.9 plan credits, at the provider's own price.
Provider
Google AI Studio
Roleplay fit
Gemini models combine large context windows with fast throughput, which keeps response times low even in busy group chats.
Context behavior
With a 1,048,576-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
Cost for regular use
It is priced low enough for high-volume daily roleplay without the per-message cost adding up quickly.
From the provider
Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
Supplied by Google AI Studio, not written by Composite.
Related models
Composite Gemini Router · Google: Gemini 3.8 Flash (Drafted) · Google: Gemini 3.7 Flash (Drafted)