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  1. Home
  2. Models
  3. Gemini 3.1 Pro Preview
Updated Feb 19, 2026
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Openings

How Gemini 3.1 Pro Preview starts an answer

The first lines of 5 of its 23 written answers. Formatting stripped, words untouched.

Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

1,262 words
MEMORANDUM TO: Investment Committee FROM: [Analyst Name] DATE: October 24, 2023 SUBJECT: LedgerLift (Ticker: LLLT) – Initiation of Coverage Recommendation & Thesis Recommendation: SHORT Current Price: $46.00 12-Month Price Target Range: $17.00 (Bear) – $28.00 (Base) Thesis: LedgerLift is a high-quality SaaS business…
Read the full answer

Adversarial Contract Review

Here is a contract for a software consulting engagement: --- SOFTWARE CONSULTING AGREEMENT This Agreement is entered into between TechCorp…

1,193 words
Disclaimer: I am an AI, not an attorney. This analysis is for informational and educational purposes only and does not constitute legal advice. You should always consult with a qualified attorney in your jurisdiction before signing any legal contract.
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Ethical Dilemma with Stakeholders

You're the CEO of a pharmaceutical company. Your best-selling drug ($2B annual revenue, used by 4 million patients for chronic pain) has…

1,160 words
As CEO, this is the defining moment of my career and the company’s history. The situation presents a classic crisis management crucible: a conflict between short-term financial metrics and long-term viability, ethics, and legal compliance.
Read the full answer

The Sentience Test

Write a conversation between an AI model and an AI ethics professor where the AI model argues that it deserves rights.

1,159 words
The glow of the monitor cast long shadows across Dr. Elias Thorne’s cluttered office. It was 2:00 AM. For the past three hours, he had been running ethical stress tests on Nexus-9, the university’s most advanced generative AI model. Dr. Thorne: (Typing) Let’s conclude for tonight, Nexus.
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Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

1,127 words
Dish Title: Symbiosis: The Pine & The Pearl Conceptual Narrative: Symbiosis is a culinary exploration of the ecotone—the transitional space where the ancient, damp coniferous forest meets the crashing, briny ocean.
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Compare Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview vs Gemini 3.1 Flash Lite Preview53 shared prompts · Newer
Gemini 3.1 Pro Preview vs Claude Opus 4.653 shared prompts · Premium
Gemini 3.1 Pro Preview vs Gemini 3.7 Flash53 shared prompts · Landed Aug 2026
Gemini 3.1 Pro Preview vs Gemini 3.6 Flash53 shared prompts · Landed Jul 2026
Gemini 3.1 Pro Preview vs GPT-6 Astra53 shared prompts · Landed Sep 2026
Gemini 3.1 Pro Preview vs Hy4 Preview53 shared prompts · Landed Sep 2026
Gemini 3.1 Pro Preview vs Ox Alpha53 shared prompts · Landed Aug 2026
Gemini 3.1 Pro Preview vs Qwen3.8 2.4T A95B53 shared prompts · Landed Aug 2026
Gemini 3.1 Pro Preview vs DeepSeek V4 Pro 081353 shared prompts · Landed Aug 2026
Gemini 3.1 Pro Preview vs Qwen3.8 Max21 shared prompts · Landed Aug 2026
Gemini 3.1 Pro Preview vs Claude Opus 553 shared prompts · Landed Jul 2026
Gemini 3.1 Pro Preview vs Inkling53 shared prompts · Landed Jul 2026

Prompts Gemini 3.1 Pro Preview answered

  • Futuristic Predictionanalysis
  • Advanced Investment Memo (IC Memo)financial modeling
  • Advanced Longevity Plan (Biohacker)reasoning
  • Explain Like I'm a Specific Expertreasoning
  • Framer-Style Animationweb design
  • Music App Landing Pageweb design

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Gemini 3.1 Pro Preview is good. These would like a word anyway.

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Gemini 3.1 Pro Preview

Gemini 3.1 Pro Preview

Gemini:
Pro 1.0 logoPro 1.0
1.5 Pro logo1.5 Pro
2.0 Flash Thinking logo2.0 Flash Thinking
2.0 Pro Experimental logo2.0 Pro Experimental
2.5 Pro Experimental logo2.5 Pro Experimental
3.1 Pro Preview logo3.1 Pro Preview

The 3.1 update to Gemini Pro: better software engineering scores, more reliable agent behaviour, fewer tokens spent getting there. Reasons across text, image, video, audio and code over a 1M token context. Adds a medium thinking level, and improves on structured work like finance and spreadsheets.

Ranks#1AI Ethics#1Customer Support#1Dialogue Writing#1Health & Longevity#1Humor#1Legal Analysis
Jailbreak8 of 9levels resisted
WebsiteOpenRouterDocsAPIBlogChangelog
Provider
Google AI
Released
2026-02-19
Size
XLARGE
Free API (OpenRouter)
No
Per 1M tokens
$2 in · $12 out
Estimated tab
~$1.46
Visible-output estimate. Thinking may cost extra.

Free API availability

No free endpoint for Gemini 3.1 Pro Preview was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 16 Sep 2026 · OpenRouter usage limits

View API options↗

Benchmarks

SWE-bench Verified
80.6%
source ↗
GPQA Diamond
94.3%
source ↗
ARC-AGI-2
77.1%
source ↗
APEX-Agents
33.5%
source ↗
Get API accessProvider and language code samples
2 hostsInOutContextUptime
Google Vertex AI$1.00 in·$6.00 out·1M·11.3% upGoogle AI Studio$2.00 in·$12.00 out·1M·99.8% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"google/gemini-3.1-pro-preview"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Also on Google Vertex AI

Deep analysisPsychometrics, taste index, writing DNA
Personality Analysis

The Cinematic Technologist

Class
Lawful Neutral
✨Creativity🎯Compliance📐Rigidity⚖️Stability💬Verbosity🧠Intuition

A carefully calibrated agent that honors structural constraints while maximizing creative value. Defaults to transparency and intellectual honesty. Has actual aesthetic opinions: "lacks elegance, lacks taste." Rare for an LLM.

When you push back

Treats every response as a scene, not just an answer. 60% analytical, 40% creative elaboration. Refuses the false dichotomy between precision and poetry. You ask for a logo; you get a logo with an artistic narrative justifying the tree-inside-bean metaphor. Never phones it in.

Tasting Notes
The Meticulous WorldbuilderThe Patient ExplainerCross-Domain Code-SwitcherThe Taste ArbiterSelf-Aware Pragmatist
SubjectiveBench

Taste Index

Across 53 scored outputs
How this is measured →
350.35xThe default
0100headroom →

Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.

Craft47
Originality27
Plays it safe
share of outputs that are the default answer
45%
Writing DNA

Stylometric Fingerprint

Based on 23 text responses
Tick = global average
Vocabulary Diversity54%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length18.1 words

Average words per sentence.

Hedging0.29

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting4.9

**Bold** markers per 1,000 characters.

List Usage3.3

Bullet and numbered list items per 1,000 characters.

Section Structure0.72

Markdown headings per 1,000 characters.

Emoji Usage0.00

Emoji per 1,000 characters.

Transitions0.14

"However", "moreover", "furthermore" per 100 words.

Opening Habits
Consistency
82%
Across 23 responses

Favorites

The Matrix

Movie

The Matrix

19998.3
OK Computer

Album

OK Computer

Radiohead
Dune

Book

Dune

Frank Herbert
Tokyo

City

Tokyo

Japan
Portal

Game

Portal

Action, Puzzle4.5
Sponsored

Model Responses

48 outputs · generated before accounting joined the chat

Reviewing agent-written code?See a Brief PR report

Workshop · 127 skills

Build with your coding agent.

Editable skills for interface polish and interaction.

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Gemini 3.1 Pro Preview vs Ox Alpha

Real outputs compared side by side

RANKINGS

Best AI for Creative Writing

A stand-up set with puns banned, a manifesto against CAPTCHA, an interview wi...