Gemini 3.1 Pro Preview
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
Pricing
Model Overview
Tracked token-pricing fields for this model family. Empty pricing fields stay hidden until the source publishes them.
| Price field | Value |
|---|---|
| Input | $2.00 / 1M tokens |
| Output | $12.00 / 1M tokens |
| Cached read | $0.20 / 1M tokens |
| Source | OpenRouter |
| Verified | Apr 5, 2026 (High) |
Surface
Capabilities
Input and output modalities, enabled feature flags, strengths, and tradeoffs.
| Attribute | Values |
|---|---|
| Modalities | audiofileimagetextvideo totext |
| Capabilities | reasoningaudioInputimageInputpromptCachingfunctionCallingstructuredOutputs |
References
Official Links
Canonical launch, documentation, pricing, and release-note URLs.
| Reference | URL |
|---|---|
| Intro | https://openrouter.ai/google/gemini-3.1-pro-preview |
| Docs | https://openrouter.ai/google/gemini-3.1-pro-preview |
| Pricing | Verify current pricing on provider’s page → |
Coverage
Benchmark Coverage
Reported benchmark families, versions, scores, sources, and notes.
| Benchmark | Version | Score | Date | Source | Notes |
|---|
Lifecycle
Release History
Lifecycle transitions and release timeline for this model family.
| Release | Alias | Lifecycle | Release Date | Deprecation | Shutdown | Summary |
|---|---|---|---|---|---|---|
| Gemini 3.1 Pro Preview | google-gemini-3-1-pro-preview | Preview | Feb 19, 2026 | — | — | Model available via OpenRouter. |
Surfaces
Host Coverage
Provider-specific hosting, context, pricing notes, feature differences, and provider-status context.
| Host | Type | Context | Pricing Note | Differences |
|---|---|---|---|---|
| OpenRouter | aggregator | 1.0M | $2.00/1M in · $12.00/1M out via OpenRouter | — |
Migration
Migration Guidance
Documented migration summary, successor families, and known breaking changes.
| Topic | Details |
|---|---|
| Summary |
Timeline
Change Events
Cataloged model-family updates and source references.
| Date | Type | Title | Description | Source |
|---|---|---|---|---|
| Feb 19, 2026 | family_added | Gemini 3.1 Pro Preview published | Model made available via OpenRouter. | OpenRouter |
From Google Gemini
Other models from Google Gemini
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