Traffic rank on Composite
#43 of 194
0.27% of tokens and 0.09% of requests over 30 days.
AI model
Google: Gemini 3.1 Pro Preview
google/gemini-3.1-pro-preview
Google: Gemini 3.1 Pro Preview is a 1,048,576-token model served on Composite at $1.25 per million tokens in and $7.50 per million tokens out. Ranked #43 of 194 models by traffic on Composite over the last 30 days, taking 0.27% of tokens and 0.09% of requests. Measured on Composite, 100.0% of its last 20 requests on Composite succeeded, the typical first token arrives in 28268 ms, output runs at about 256.8 tokens per second.
Try in PlaygroundSpecifications
| Model ID | google/gemini-3.1-pro-preview |
|---|---|
| Provider | |
| Context window | 1,048,576 tokens |
| Accepts | audio, file, image, text, video |
| Returns | text |
| Input price | $1.25 per million tokens |
| Output price | $7.50 per million tokens |
| Prompt caching | Supported — cached input is billed at the provider's cache rate, on credits and plans alike |
| Image input | $0.0000012 per image |
| Audio input | $0.0000012 per second |
| Reasoning tokens | $7.50 per million tokens |
| Web search | $0.0175 per result |
| Thinking | Always on for this model |
| Moderated | No |
| Cost on a monthly plan | About 14 plan credits per typical call (8k in, 1k out) |
| Routing endpoints | 2 (base plus 1 routing variant) |
Success rate
100.0%
Across the last 20 requests Composite served for this model.
Time to first token
28268 ms
Median across the same sample.
Output speed
256.8 tok/s
Median generation rate after the first token.
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-3.1-pro-preview:cheapThink |
$1.25 per million tokens input · $7.50 per million tokens output |
Pricing
$1.25 per million tokens input · $7.50 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 14 plan credits, at the provider's own price.
Provider
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 sits in the mid-range on price, a reasonable pick for regular roleplay use without going for the cheapest option available.
From the provider
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...
Supplied by Google, not written by Composite.
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