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

Gemini 3.1 Pro pricing for faq bot

$0.0126 per call at 1,500 input / 800 output tokens.

Per call

$0.0126

10K calls/mo

$126

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 faq bot spend. Pricing updated weekly.

Configure your usage

1,500
100100K
800
5050K
10,000
1001M

Estimated cost

Monthly cost
$126
10,000 calls/month
Cost per call$0.0126
Daily cost$4
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: ~$0.0126 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 faq bot benchmarks. Hover for details.

Cheapest viable option: Gemini 3 Flash at $0.003150/call (75% less, 82/100 quality).

Complete Gemini 3.1 Pro pricing breakdown

Standard token rates

Direction$/MTokTokens per call
Input$2.001,500
Output$12.00800

Prompt caching: 75% off input tokens

Caching drops input cost from $2.00 to $0.50/MTok. For repeated system prompts, that saves $0.002250 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$0.0126$126$103.5$22.5
50,000 calls$0.0126$630$517.5$112.5
100,000 calls$0.0126$1,260$1,035$225
500,000 calls$0.0126$6,300$5,175$1,125
1,000,000 calls$0.0126$12,600$10,350$2,250

Gemini 3.1 Pro quality benchmarks for faq bot

Gemini 3.1 Pro is a solid pick for faq bot

Scores 87/100 (rank #4 of 14). Good balance of quality and cost for faq bot.

Top-ranked: GPT 5.6 Terra (92/100) at $0.0158/call

Performance across all task types

Gemini 3.1 Pro scores by task type. FAQ Bot highlighted.

Reasoning90Summarization87Q&A *87Code Generation86Classification86Extraction85Code Review84Creative Writing84
Task typeConfidence scoreRank out of 14
Reasoning90/100#4
Summarization87/100#4
Q&A(current page)87/100#4
Code Generation86/100#5
Classification86/100#3
Extraction85/100#4
Code Review84/100#4
Creative Writing84/100#4

Alternative models for faq bot

12 models score 80+ on faq bot benchmarks, sorted by input rate. Cheapest: Gemini 3 Flash (75% less, 82/100 quality).

ModelProviderInput $/MTokOutput $/MTokQualityPer callvs Gemini
Gemini 3 FlashGemini$0.50$3.0082/100$0.00315075% cheaper
Claude Haiku 4.5Claude$1.00$5.0086/100$0.00550056% cheaper
GPT 5.6 LunaGPT$1.00$6.0085/100$0.00630050% cheaper
Gemini 3.5 FlashGemini$1.50$9.0084/100$0.00945025% cheaper
Claude Sonnet 5Claude$2.00$10.0089/100$0.011013% cheaper
GPT 5.4GPT$2.50$15.0091/100$0.015825% more
GPT 5.6 TerraGPT$2.50$15.0092/100$0.015825% more
Claude Sonnet 4.6Claude$3.00$15.0088/100$0.016531% more
Claude Opus 4.8Claude$5.00$25.0085/100$0.0275118% more
GPT 5.5GPT$5.00$30.0090/100$0.0315150% more
GPT 5.6 SolGPT$5.00$30.0091/100$0.0315150% more
Claude Fable 5Claude$10.00$50.0088/100$0.0550337% 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 faq bot per API call?

$0.0126 per call at 1,500 input / 800 output tokens.

Is Gemini 3.1 Pro the best model for faq bot?

Scores 87/100, rank #4 of 14 models. Top-ranked: GPT 5.6 Terra at 92/100.

What is the cheapest model for faq bot with good quality?

Gemini 3 Flash scores 82/100 quality at $0.50/$3.00 per MTok. That is 75% less than Gemini 3.1 Pro per call.

How can I reduce my Gemini 3.1 Pro costs for faq bot?

Three strategies: prompt caching (75% off input), batch API (50% off all tokens), prompt optimization. Combined: $0.0126 drops to about $0.001575 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 faq bot calls use 1,500 plus 800 tokens, well within limits.

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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.