Gemini · Mid-tier · 1,000K context window

Gemini 3.1 Pro pricing for code generation

$0.0520 per call at 2,000 input / 4,000 output tokens.

Per call

$0.0520

10K calls/mo

$520

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 code generation spend. Pricing updated weekly.

Configure your usage

2,000
100100K
4,000
5050K
10,000
1001M

Estimated cost

Monthly cost
$520
10,000 calls/month
Cost per call$0.052
Daily cost$17
Input rate$2.00/MTok
Output rate$12.00/MTok
Analyze your real spend

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: ~$0.0520 per call at standard rates
# Input:  $2.00/MTok
# Output: $12.00/MTok

How Gemini 3.1 Pro compares on cost

Per-call cost for all models scoring 50+ on code generation benchmarks. Hover for details.

Cheapest viable option: Claude Sonnet 5 at $0.0440/call (15% less, 93/100 quality).

Complete Gemini 3.1 Pro pricing breakdown

Standard token rates

Direction$/MTokTokens per call
Input$2.002,000
Output$12.004,000

Prompt caching: 75% off input tokens

Caching drops input cost from $2.00 to $0.50/MTok. For repeated system prompts, that saves $0.003000 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 volumeCost per callStandard monthlyCached monthlyYou save with caching
10,000 calls$0.0520$520$490$30
50,000 calls$0.0520$2,600$2,450$150
100,000 calls$0.0520$5,200$4,900$300
500,000 calls$0.0520$26,000$24,500$1,500
1,000,000 calls$0.0520$52,000$49,000$3,000

Gemini 3.1 Pro quality benchmarks for code generation

Gemini 3.1 Pro is a solid pick for code generation

Scores 86/100 (rank #5 of 14). Good balance of quality and cost for code generation.

Top-ranked: Claude Fable 5 (96/100) at $0.2200/call

Performance across all task types

Gemini 3.1 Pro scores by task type. Code Generation highlighted.

Reasoning90Summarization87Q&A87Code Generation *86Classification86Extraction85Code Review84Creative Writing84
Task typeConfidence scoreRank out of 14
Reasoning90/100#4
Summarization87/100#4
Q&A87/100#4
Code Generation(current page)86/100#5
Classification86/100#3
Extraction85/100#4
Code Review84/100#4
Creative Writing84/100#4

Alternative models for code generation

8 models score 80+ on code generation benchmarks, sorted by input rate. Cheapest: Claude Sonnet 5 (15% less, 93/100 quality).

ModelProviderInput $/MTokOutput $/MTokQualityPer callvs Gemini
Claude Sonnet 5Claude$2.00$10.0093/100$0.044015% cheaper
GPT 5.4GPT$2.50$15.0084/100$0.065025% more
GPT 5.6 TerraGPT$2.50$15.0086/100$0.065025% more
Claude Sonnet 4.6Claude$3.00$15.0092/100$0.066027% more
Claude Opus 4.8Claude$5.00$25.0095/100$0.1100112% more
GPT 5.5GPT$5.00$30.0091/100$0.1300150% more
GPT 5.6 SolGPT$5.00$30.0094/100$0.1300150% more
Claude Fable 5Claude$10.00$50.0096/100$0.2200323% more

About Gemini 3.1 Pro

Provider

Gemini

Tier

Mid-tier

Context

1,000K tokens

Released

Apr 2026

Other models from Gemini

ModelTierInput $/MTokOutput $/MTokContext
Gemini 3.5 FlashFast / Budget$1.50$9.001,000K
Gemini 3 FlashFast / Budget$0.50$3.001,000K
Gemini 3.5 Flash-LiteFast / Budget$0.25$1.501,000K

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.

Frequently asked questions

How much does Gemini 3.1 Pro cost for code generation per API call?

$0.0520 per call at 2,000 input / 4,000 output tokens.

Is Gemini 3.1 Pro the best model for code generation?

Scores 86/100, rank #5 of 14 models. Top-ranked: Claude Fable 5 at 96/100.

What is the cheapest model for code generation with good quality?

Claude Sonnet 5 scores 93/100 quality at $2.00/$10.00 per MTok. That is 15% less than Gemini 3.1 Pro per call.

How can I reduce my Gemini 3.1 Pro costs for code generation?

Three strategies: prompt caching (75% off input), batch API (50% off all tokens), prompt optimization. Combined: $0.0520 drops to about $0.006500 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 code generation calls use 2,000 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.