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🏆 FlagshipMid-Range

Gemini 3.1 Pro

by Google

Latest Gemini 3 series with improved intelligence, multimodal understanding, and agentic capabilities

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Input Price

$2

per 1M tokens

Output Price

$12

per 1M tokens

Context Window

1,000K

tokens (65.536K max output)

Specifications

Release Date2026-02-19
Category🏆 Flagship
Context Window1,000,000 tokens
Max Output65,536 tokens
ProviderGoogle
Input Cost$2 / 1M tokens
Output Cost$12 / 1M tokens
Price TierMid-Range

Capabilities

textvisionaudiovideocodereasoning

Related Use Cases

🤖

AI Agent / Agentic Workflows

Calculate the cost of running AI agents that use tools, make decisions, and complete multi-step tasks.

~10,000 in · ~3,000 out
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AI Chatbot

Calculate the API cost of running a customer support or conversational AI chatbot.

~2,000 in · ~500 out
📄

Document Summarizer

Calculate how much it costs to summarize documents, reports, and articles with AI.

~8,000 in · ~1,000 out
💻

AI Code Assistant

Calculate the cost of building an AI-powered coding assistant or copilot.

~4,000 in · ~2,000 out
✍️

Content Generation

Calculate the cost of generating blog posts, marketing copy, and articles with AI.

~1,500 in · ~3,000 out
🖼️

Image Analysis

Calculate the cost of analyzing images with AI vision models.

~6,000 in · ~500 out

Monthly Cost Estimates

Usage LevelDaily TokensDailyMonthlyYearly
Light~50 requests/day100K in / 20K out$0.44$13.20$161
Medium~200 requests/day500K in / 100K out$2.20$66.00$803
Heavy~1K requests/day2,000K in / 500K out$10.00$300.00$3650
Enterprise~5K requests/day10,000K in / 2,000K out$44.00$1320.00$16060

Cost Calculator

Alternatives to Gemini 3.1 Pro

💰 Cheaper Options

Command R+Cohere
11% cheaper
$2.5/M in · $10/M out
GPT-4oOpenAI
11% cheaper
$2.5/M in · $10/M out
Gemini 2.5 ProGoogle
20% cheaper
$1.25/M in · $10/M out
GPT-5OpenAI
20% cheaper
$1.25/M in · $10/M out

🚀 More Powerful

GPT-5.2OpenAI
13% more
$1.75/M in · $14/M out
GPT-5.3 CodexOpenAI
13% more
$1.75/M in · $14/M out
GPT-5.4OpenAI
25% more
$2.5/M in · $15/M out
Claude Sonnet 4.6Anthropic
29% more
$3/M in · $15/M out

Frequently Asked Questions

How much does Gemini 3.1 Pro API cost per million tokens?▼
Gemini 3.1 Pro costs $2 per million input tokens and $12 per million output tokens as of 2026. These are the standard API rates from Google.
What is the Gemini 3.1 Pro context window?▼
Gemini 3.1 Pro supports a 1M context window (1,000,000 tokens), which means you can process up to 1M tokens in a single API call.
How much does Gemini 3.1 Pro cost per month?▼
At medium usage (~200 requests/day with 500K input and 100K output tokens/day), Gemini 3.1 Pro costs approximately $66.00/month. Light usage runs about $13.20/month, and heavy usage (~1K requests/day) around $300.00/month.
Is there a cheaper alternative to Gemini 3.1 Pro?▼
Yes — Command R+ by Cohere is a cheaper option at $2.5/M input tokens vs $2/M for Gemini 3.1 Pro. Other budget alternatives include models in the efficient tier.
Is Gemini 3.1 Pro good for ai agent / agentic workflows?▼
Gemini 3.1 Pro is a flagship model with support for text, vision, audio. For ai agent / agentic workflows, it offers 1M context and costs $2/M input tokens — a mid-range option for this use case.

Gemini 3.1 Pro Comparisons

codex mini latest vs gemini 3 1 pro previewgemini 3 1 pro preview vs o4 mini deep researchgemini 3 1 pro preview vs o3 deep researchgemini 3 1 pro preview vs gpt 5 2gemini 3 1 pro preview vs gpt 5 2 progemini 3 1 pro preview vs gpt 5 4 progemini 3 1 pro preview vs gpt 5 4gemini 3 1 pro preview vs gpt 5 4 mini

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