Google: Gemini 3.1 Pro Preview
by GoogleGoogle: Gemini 3.1 Pro Preview is a large language model from Google. It costs $2.00 per million input tokens and $12.00 per million output tokens. Its context window is 1.0M tokens.
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $12.00
- Cached input / 1M
- $0.200
- Context window
- 1.0M
On repeated prefixes
tokens
This model also charges $0.014 per search request
That is $14.00 per 1,000 requests, billed on top of the token prices above. On a typical 1,000-in / 500-out exchange the tokens cost $0.008, so the search fee is 1.8× the token cost. Per-token rankings elsewhere ignore this entirely.
Who serves it cheapest
2 hosts serve Gemini 3.1 Pro Preview. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| GoogleCheapest | $1.00 | $6.00 | 1.0M | - | 5.0% |
| Google AI Studio | $1.00 | $6.00 | 1.0M | - | 99.8% |
The spread between Google and Google AI Studio is about the same for identical weights. Quantization and context limits differ, so check both columns before switching.
Benchmarks
Independent scores published alongside the catalogue.
- Intelligence index
- 30.4
- Coding index
- 68.8
- Agentic index
- 10.3
About 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
| Model ID | google/gemini-3.1-pro-preview |
|---|---|
| Provider | |
| Context window | 1.0M tokens |
| Max output | 66K tokens |
| Input modalities | audio, file, image, text, video |
| Output modalities | text |
| Knowledge cutoff | - |
| Open weights | No |
| Released | February 19, 2026 |
Cheaper alternatives
Models that cost less than Gemini 3.1 Pro Preview while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does Google: Gemini 3.1 Pro Preview cost?
$2.00 per million input tokens and $12.00 per million output tokens. Cached input reads cost $0.200 per million tokens.
What is the context window of Google: Gemini 3.1 Pro Preview?
1.0M tokens, with up to 66K tokens of output per request.
Does Google: Gemini 3.1 Pro Preview have extra fees beyond per-token pricing?
Yes. Google: Gemini 3.1 Pro Preview charges $0.014 per search request - $14.00 per 1,000 requests - on top of $2.00 per million input tokens and $12.00 per million output tokens. On a typical 1,000-input / 500-output exchange the search fee alone is 1.8× the token cost.
Which provider serves Google: Gemini 3.1 Pro Preview cheapest?
Google at $1.00 per million input tokens - about the same cheaper than Google AI Studio, the most expensive of the 2 hosts serving it.
Confirm against the source: Google official pricing.