The Orchestrator › Models › Google
Google: 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. Building on the multimodal foundation...
Specifications
| Provider | |
| Model ID | google/gemini-3.1-pro-preview |
| Context window | 1.0M tokens (1,048,576) |
| Modalities | text + image + file + audio + video → text |
| Tokenizer | Gemini |
| Router sources | OpenRouter, TrustedRouter, Vercel AI Gateway |
| Released | 2026-02-19 |
| Tracked since | 2026-11-14 |
| Popularity | #32 by usage · peak 3.8% spend share in an OpenRouter category |
| Reasoning | Mandatory |
Pricing (per million tokens)
| Variant | Source | API ID | Input | Output | Context |
|---|---|---|---|---|---|
| standard | OpenRouter | google/gemini-3.1-pro-preview | $2.00 | $12.00 | 1.0M |
| batch | OpenRouter | google/gemini-3.1-pro-preview:batch | $1.00 | $6.00 | 1.0M |
| standard | TrustedRouter | google/gemini-3.1-pro-preview | $2.11 | $12.66 | 1.0M |
| standard | Vercel AI Gateway | google/gemini-3.1-pro-preview | $2.00 | $12.00 | 1M |
| batch | Vercel AI Gateway | google/gemini-3.1-pro-preview:batch | $1.00 | $6.00 | 1M |
Recorded price history
| Date | Input / 1M | Output / 1M | Context |
|---|---|---|---|
| 2026-11-14 | $2.00 | $12.00 | 1M |
| 2026-11-14 | $2.11 | $12.66 | 1.0M |
| 2026-11-14 | $2.00 | $12.00 | 1.0M |
Capabilities
Vision (image input)Audio inputVideo inputFile inputAgentic tool useStructured outputsReasoning (always on)1M+ context windowControllable reasoningNo content storage (attested)No training on inputs (attested)
Trust flags come from TrustedRouter's per-provider attestations.
Supported parameters
include_reasoning, max_tokens, reasoning, reasoning_effort, response_format, seed, stop, structured_outputs, temperature, tool_choice, tools, top_p