tokevenGemini · Mid-tier · 1,000K context window
Gemini 3.1 Pro pricing for legal analysis
$0.0680 per call at 10,000 input / 4,000 output tokens.
Per call
$0.0680
10K calls/mo
$680
Cache savings
75% off input
Batch savings
50% off all
Calculate your Gemini 3.1 Pro costs
Adjust token counts, volume, and discount toggles to model your legal analysis spend. Pricing updated weekly.
Configure your usage
Estimated cost
Quick start
Call Gemini 3.1 Pro with the Google Generative AI SDK:
import google.generativeai as genai
model = genai.GenerativeModel("gemini-3.1-pro")
response = model.generate_content("Your prompt here")
# Cost: ~$0.0680 per call at standard rates
# Input: $2.00/MTok
# Output: $12.00/MTokHow Gemini 3.1 Pro compares on cost
Per-call cost for all models scoring 50+ on legal analysis benchmarks. Hover for details.
Cheapest viable option: Claude Sonnet 5 at $0.0600/call (12% less, 90/100 quality).
Complete Gemini 3.1 Pro pricing breakdown
Standard token rates
| Direction | $/MTok | Tokens per call |
|---|---|---|
| Input | $2.00 | 10,000 |
| Output | $12.00 | 4,000 |
Prompt caching: 75% off input tokens
Caching drops input cost from $2.00 to $0.50/MTok. For repeated system prompts, that saves $0.0150 per call.
Batch API: 50% off all tokens
Submit requests asynchronously and receive 50% off all token costs. This works best for offline pipelines where latency requirements are flexible.
Monthly cost projections
| Monthly volume | Cost per call | Standard monthly | Cached monthly | You save with caching |
|---|---|---|---|---|
| 10,000 calls | $0.0680 | $680 | $530 | $150 |
| 50,000 calls | $0.0680 | $3,400 | $2,650 | $750 |
| 100,000 calls | $0.0680 | $6,800 | $5,300 | $1,500 |
| 500,000 calls | $0.0680 | $34,000 | $26,500 | $7,500 |
| 1,000,000 calls | $0.0680 | $68,000 | $53,000 | $15,000 |
Gemini 3.1 Pro quality benchmarks for legal analysis
Use Gemini 3.1 Pro for legal analysis
Scores 90/100 (rank #4 of 14). Strong pick for production legal analysis workloads.
Top-ranked: Claude Fable 5 (98/100) at $0.3000/call
Performance across all task types
Gemini 3.1 Pro scores by task type. Legal Analysis highlighted.
| Task type | Confidence score | Rank out of 14 |
|---|---|---|
| Reasoning(current page) | 90/100 | #4 |
| Summarization | 87/100 | #4 |
| Q&A | 87/100 | #4 |
| Code Generation | 86/100 | #5 |
| Classification | 86/100 | #3 |
| Extraction | 85/100 | #4 |
| Code Review | 84/100 | #4 |
| Creative Writing | 84/100 | #4 |
Alternative models for legal analysis
8 models score 80+ on legal analysis benchmarks, sorted by input rate. Cheapest: Claude Sonnet 5 (12% less, 90/100 quality).
| Model | Provider | Input $/MTok | Output $/MTok | Quality | Per call | vs Gemini |
|---|---|---|---|---|---|---|
| Claude Sonnet 5 | Claude | $2.00 | $10.00 | 90/100 | $0.0600 | 12% cheaper |
| GPT 5.4 | GPT | $2.50 | $15.00 | 80/100 | $0.0850 | 25% more |
| GPT 5.6 Terra | GPT | $2.50 | $15.00 | 82/100 | $0.0850 | 25% more |
| Claude Sonnet 4.6 | Claude | $3.00 | $15.00 | 88/100 | $0.0900 | 32% more |
| Claude Opus 4.8 | Claude | $5.00 | $25.00 | 97/100 | $0.1500 | 121% more |
| GPT 5.5 | GPT | $5.00 | $30.00 | 95/100 | $0.1700 | 150% more |
| GPT 5.6 Sol | GPT | $5.00 | $30.00 | 96/100 | $0.1700 | 150% more |
| Claude Fable 5 | Claude | $10.00 | $50.00 | 98/100 | $0.3000 | 341% more |
About Gemini 3.1 Pro
Provider
Gemini
Tier
Mid-tier
Context
1,000K tokens
Released
Apr 2026
Other models from Gemini
| Model | Tier | Input $/MTok | Output $/MTok | Context |
|---|---|---|---|---|
| Gemini 3.5 Flash | Fast / Budget | $1.50 | $9.00 | 1,000K |
| Gemini 3 Flash | Fast / Budget | $0.50 | $3.00 | 1,000K |
| Gemini 3.5 Flash-Lite | Fast / Budget | $0.25 | $1.50 | 1,000K |
You can compare Gemini 3.1 Pro head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.
Gemini 3.1 Pro pricing for other use cases
See how Gemini 3.1 Pro costs change across different workload types.
Code Generation
$0.0520/call
Unit Test Generation
$0.0660/call
SQL Generation
$0.0150/call
API Generation
$0.0780/call
Code Refactoring
$0.0560/call
Code Review
$0.0340/call
PR Review
$0.0520/call
Security Review
$0.0420/call
Bug Detection
$0.0340/call
Document Summarization
$0.0320/call
PDF Summarization
$0.0480/call
Meeting Notes
$0.0400/call
Email Summarization
$0.0120/call
Chatbot
$0.0160/call
RAG Pipeline
$0.0300/call
Customer Support Bot
$0.0180/call
FAQ Bot
$0.0126/call
Data Extraction
$0.0200/call
JSON Extraction
$0.0156/call
Invoice Parsing
$0.0112/call
Resume Parsing
$0.0146/call
Chain of Thought
$0.0660/call
Math Reasoning
$0.0390/call
Financial Analysis
$0.0640/call
Content Moderation
$0.002200/call
Sentiment Analysis
$0.002200/call
Categorization
$0.003400/call
Intent Detection
$0.001800/call
Copywriting
$0.0250/call
Blog Writing
$0.0980/call
Marketing Copy
$0.0376/call
Product Descriptions
$0.0190/call
Related pages
Frequently asked questions
How much does Gemini 3.1 Pro cost for legal analysis per API call?
$0.0680 per call at 10,000 input / 4,000 output tokens.
Is Gemini 3.1 Pro the best model for legal analysis?
Scores 90/100, rank #4 of 14 models. Top-ranked: Claude Fable 5 at 98/100.
What is the cheapest model for legal analysis with good quality?
Claude Sonnet 5 scores 90/100 quality at $2.00/$10.00 per MTok. That is 12% less than Gemini 3.1 Pro per call.
How can I reduce my Gemini 3.1 Pro costs for legal analysis?
Three strategies: prompt caching (75% off input), batch API (50% off all tokens), prompt optimization. Combined: $0.0680 drops to about $0.008500 per call.
How does Gemini 3.1 Pro pricing compare to other Gemini models?
Gemini also offers: Gemini 3.5 Flash at $1.50/$9.00, Gemini 3 Flash at $0.50/$3.00, Gemini 3.5 Flash-Lite at $0.25/$1.50.
What context window does Gemini 3.1 Pro support?
1,000K tokens total. Typical legal analysis calls use 10,000 plus 4,000 tokens, well within limits.
Track what you spend on AI
This calculator estimates costs based on published rates only. Connect your API usage to see where your money goes and which models drive your spend.