google
Google: Gemini 3.1 Pro Preview
Google's Gemini 3.1 Pro Preview is designed for versatile applications, supporting text, audio, file, image, and video inputs. It can handle extensive context with a 1MB limit per piece of input, making it suitable for complex tasks that require multi-modal data. The model also supports reasoning capabilities and tools, enabling more sophisticated problem-solving scenarios. This model stands out with its broad benchmark coverage across four independent tests, achieving a blended score of 76.5. While it offers robust features, its pricing at $2.0 per million input tokens and $12.0 per million output tokens might be a consideration for cost-sensitive users. Given its strong performance in coding tasks but weaker scores in agentic benchmarks, Gemini 3.1 Pro Preview is particularly well-suited for projects requiring detailed technical analysis and handling multiple data types.
Quality Score
100/100
price + capability + benchmarks
Input Price
$2.00
per 1M tokens
Output Price
$12.00
per 1M tokens
Context Window
1,048,576
tokens
Benchmark results
Independent, published benchmarks. Blended score 76.5 across 4 benchmarks, last refreshed 2026-07-23. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 76.7 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 35.3 |
| EQ-Bench | emotional understanding in dialogue | 74.3 |
- Model ID
- google/gemini-3.1-pro-preview
- Vendor
- Released
- February 2026
- Tokenizer
- Gemini
- Input Modalities
- audio, file, image, text, video
- Output Modalities
- text
- Max Output
- 65,536 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- ✓ accepts audio
- Moderated
- no
What it costs in practice
Computed from the current $2.00/M input and $12.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.08 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.60 |
| A month of a busy support chatbot | 5M in / 2M out | $34.00 |
Strong choice for
Data
OCR / Document Parsing
Reading text out of images, PDFs, and scanned documents.
Data
Table Extraction from PDFs
Pulling structured tables out of complex documents.
Voice
Audio Summarization
Podcast and meeting summary from audio directly.
Video
Video Summarization
Extracting key moments and summaries from video.
Category rankings
Where Google: Gemini 3.1 Pro Preview places across the 64 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #1 | Audio SummarizationVoice · of 22 ranked | 163 |
| #1 | Video SummarizationVideo · of 25 ranked | 163 |
| #4 | OCR / Document ParsingData · of 25 ranked | 147 |
| #4 | Table Extraction from PDFsData · of 25 ranked | 147 |
| #6 | Code DocumentationCode · of 25 ranked | 145 |
| #6 | Transcript CleanupWriting · of 25 ranked | 144 |
| #7 | Code ReviewCode · of 25 ranked | 170 |
| #7 | Code RefactoringCode · of 25 ranked | 169 |
| #7 | CSV / Spreadsheet CleanupData · of 25 ranked | 156 |
| #7 | ETL ScriptingData · of 25 ranked | 157 |
| #7 | Long-Document SummarizationWriting · of 25 ranked | 164 |
| #7 | Blog Post WritingWriting · of 25 ranked | 141 |
| #7 | Creative WritingWriting · of 25 ranked | 160 |
| #7 | Screenwriting & DialogWriting · of 25 ranked | 160 |
| #7 | Academic WritingWriting · of 25 ranked | 160 |
| #7 | Legal DraftingProfessional · of 25 ranked | 160 |
| #7 | Medical Note SummarizationProfessional · of 25 ranked | 157 |
| #7 | Physics TutoringEducation · of 25 ranked | 148 |
| #7 | History TutoringEducation · of 25 ranked | 148 |
| #7 | Essay GradingEducation · of 25 ranked | 170 |
| #7 | Meeting NotesBusiness · of 25 ranked | 154 |
| #7 | RFP ResponseBusiness · of 25 ranked | 178 |
| #7 | OKRs & Strategic PlanningBusiness · of 25 ranked | 160 |
| #7 | RAG PipelinesAgents · of 25 ranked | 169 |
| #7 | Long-Context Q&AAgents · of 25 ranked | 160 |
| #7 | Character RoleplayPersonal · of 25 ranked | 152 |
| #7 | Trip PlanningPersonal · of 25 ranked | 141 |
| #7 | Math ProofsResearch · of 25 ranked | 160 |
| #8 | Unit Test GenerationCode · of 25 ranked | 155 |
| #8 | CI/CD PipelinesCode · of 25 ranked | 145 |
| #8 | Legal ResearchProfessional · of 25 ranked | 172 |
| #8 | Contract ReviewProfessional · of 25 ranked | 181 |
| #8 | Scientific ResearchProfessional · of 25 ranked | 172 |
| #8 | Fiction CollaboratorPersonal · of 25 ranked | 172 |
| #8 | Literature ReviewResearch · of 25 ranked | 172 |
| #10 | Screenshot DebuggingVision · of 25 ranked | 142 |
| #11 | Frontend Component DesignCode · of 25 ranked | 145 |
| #11 | Diagram ExtractionVision · of 25 ranked | 148 |
| #11 | Chart & Graph ReadingVision · of 25 ranked | 151 |
| #12 | Fitness CoachingPersonal · of 25 ranked | 134 |
| #13 | Marketing CopyWriting · of 25 ranked | 129 |
| #13 | Math TutoringEducation · of 25 ranked | 146 |
| #13 | Standardized Test PrepEducation · of 25 ranked | 129 |
| #13 | Resume WritingBusiness · of 25 ranked | 117 |
| #13 | TTS ReplacementVoice · of 22 ranked | 115 |
| #13 | Experiment DesignResearch · of 25 ranked | 155 |
| #14 | SQL GenerationCode · of 25 ranked | 168 |
| #14 | Regex WritingCode · of 25 ranked | 134 |
| #14 | Language TranslationWriting · of 25 ranked | 134 |
| #14 | Tutoring for KidsPersonal · of 25 ranked | 134 |
| #15 | Bug FixingCode · of 25 ranked | 178 |
| #15 | Financial AnalysisProfessional · of 25 ranked | 155 |
| #15 | SOP / Process DocsBusiness · of 25 ranked | 135 |
| #15 | Scientific CodingResearch · of 25 ranked | 178 |
| #16 | Agent WorkflowsAgents · of 25 ranked | 188 |
| #16 | Browser AutomationAgents · of 25 ranked | 163 |
| #16 | Coding AgentsAgents · of 25 ranked | 188 |
| #16 | TranscriptionVoice · of 22 ranked | 115 |
| #18 | Data AnalysisData · of 25 ranked | 164 |
| #22 | Sales / Cold EmailBusiness · of 25 ranked | 121 |
| #22 | Job Application DraftingBusiness · of 25 ranked | 121 |
| #22 | Journaling HelperPersonal · of 25 ranked | 121 |
| #22 | Recipe GenerationPersonal · of 25 ranked | 121 |
| #24 | Function / Tool CallingAgents · of 25 ranked | 146 |
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Quick answers
- How much does Google: Gemini 3.1 Pro Preview cost?
- $2.00 per million input tokens and $12.00 per million output tokens.
- What is Google: Gemini 3.1 Pro Preview's context window?
- 1,048,576 tokens, roughly 1,572 pages of text in a single request.
- Does Google: Gemini 3.1 Pro Preview support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Google: Gemini 3.1 Pro Preview process images?
- Yes, it accepts image input.