Compare / Gemini 3.1 Pro Preview vs Gemini 4 Argon

Gemini 3.1 Pro Preview vs Gemini 4 Argon

Which is cheaper, which is more capable, and which does better at each kind of work, from 103 results on 7 sources that measured both models.

GoogleGemini 3.1 Pro Preview Released 19 Feb 2026 · $2.00 in · $12.00 out
GoogleGemini 4 Argon Released 13 Oct 2026 · $2.00 in · $10.00 out
Gemini 3.1 Pro Preview wins 1621 too close to callGemini 4 Argon wins 66

Of the 103 results both models have, the better value on each. Results whose reported ranges overlap are too close to call.

Results as of 14 October 2026 (catalogue release 2026-10-14-7d7cf32c3f6d).

Gemini 3.1 Pro Preview or Gemini 4 Argon? The short answer

Pick Gemini 4 Argon: it scores higher (Spring Prompt overall 75 against 47) and costs less.

  • Spring Prompt overall: Gemini 3.1 Pro Preview 47, Gemini 4 Argon 75 (out of 100; how the score works).
  • Gemini 4 Argon is cheaper to run: $0.011 against $0.035 per product listing on CatalogBench (3.2 times less).
  • Gemini 4 Argon scores higher on the Artificial Analysis Intelligence Index: 52.6 against 29.7.
  • Gemini 4 Argon is newer: released 13 Oct 2026, against 19 Feb 2026 for Gemini 3.1 Pro Preview.
  • On our own benchmarks, on the results both models have: Gemini 4 Argon does better for product listings, decks from an analysis, user surveys and marketing planning.
  • On third-party benchmarks, on the results both models have: Gemini 4 Argon does better for agents and tool use, reasoning and knowledge, writing and sticking to the facts.

Head to head

47
Spring Prompt overall
75
29.7
Intelligence Index
52.6
$4.50
Price per million tokens, blendedlower is better
$4.00
1,048,576
Context window, tokens
1,048,576

Every fact side by side

Gemini 3.1 Pro PreviewGemini 4 Argon
Price per million tokens$2.00 in · $12.00 out$2.00 in · $10.00 out
Blended (3 in : 1 out)$4.50$4.00
Cheapest host, blended$4.50 (Google)–
Cost per product listing (CatalogBench)$0.035$0.011
Cached input, per million$0.20 cached input–
Intelligence Index29.752.6
Spring Prompt overall4775
Output speed, tokens a second135–
Context window1,048,576 tokens1,048,576 tokens
Released19 Feb 202613 Oct 2026 (newer)
WeightsClosedClosed
Developer based inthe USthe US

Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.

Which is better for what

Each model's rank among the models on sale today, for each kind of work, from our own benchmarks and licensed sources. Further right is better; the better rank is in green.

Product listingsTurning a sparse product feed and photos into listings that can go live 10 of 22 7 of 22
Decks from an analysisTurning a finished analysis into a deck you could present as it is 16 of 21 13 of 21
User surveysPlanning a user survey and reading its results without being misled 7 of 10 5 of 10
Marketing planningPlanning a year of ad spend without overspending 10 of 21 8 of 21
Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls 62 of 166 3 of 166
Professional workReal tasks from banking, consulting and law, business documents and freelance projects 36 of 51 not measured
Reasoning and knowledgeHard questions across science, maths and general knowledge 26 of 200 3 of 200
WritingWhat people prefer in blind comparisons, and judged writing quality 9 of 189 1 of 189
Sticking to the factsSummarising without inventing things, and factual answers 35 of 153 1 of 153
Speed under pressureGood decisions against a real clock (fast chess) 5 of 25 20 of 25

Their slides, side by side

The same brief for both: Manchester store investment review for Hearthside Coffee, an invented company. First slide of each deck from DeckBench.

First slide of Gemini 3.1 Pro Preview's deck for Hearthside Coffee
Gemini 3.1 Pro Preview · deck rating 763 · needs work
First slide of Gemini 4 Argon's deck for Hearthside Coffee
Gemini 4 Argon · deck rating 998 · needs work

Every slide, side by side →

From our research

Every shared result

Each model's best result on every measure both have, grouped by benchmark, with the setting that produced it. Under each measure, every model that benchmark has measured is a grey tick, best to the right, so you can see where the two sit in the field. The headline measures of each benchmark come first; the rest are under "Show all". Green marks the better value; where a source reports ranges that overlap, neither is marked.

MeasureGemini 3.1 Pro PreviewGemini 4 Argon
BulletBench measured by Spring Prompt · 3 results
Cost per game · Blitz 3+2US dollars, lower is better 12 · 10 of 15 measured $0.21 $0.12
Cost per game · Bullet 60sUS dollars, lower is better 27 · 10 of 30 measured $0.0446low reasoning $0.0036
Ladder Elo · Bullet 60sladder Elo, higher is better 11 · 26 of 30 measured 529low reasoning 147
CatalogBench measured by Spring Prompt · 3 results
Cost per productUS dollars, lower is better 17 · 12 of 22 measured $0.0355 $0.0109
Reliably publish-ready% of products, higher is better 10 · 5 of 22 measured 44.6% 60.7%
Reliably publish-ready · sales brief% of products, higher is better 10 · 9 of 22 measured 16.1% 17.9%
DeckBench measured by Spring Prompt · 3 results
Cost per deckUS dollars, lower is better 11 · 10 of 21 measured $0.14 $0.11
Deck ratingrating, higher is betterThe rating weighs each win by how strong the other deck was; the win rate counts wins against whichever decks a model happened to meet, so the two can disagree. 16 · 13 of 21 measured 763 998
Accurate decks% of tasks, higher is better 9 · 13 of 21 measured 50.0% 33.3%
ROASBench measured by Spring Prompt · 3 results
Overall scorescore out of 100, higher is better 10 · 8 of 21 measured 43.5 47.0
Audience scorescore out of 100, higher is better 6 · 8 of 21 measured 67.5 65.5
Business scorescore out of 100, higher is better 10 · 8 of 21 measured 35.9 43.3
SurveyBench measured by Spring Prompt · 3 results
Analysis ratingrating, higher is betterThe rating weighs each win by how strong the other analysis was; the win rate counts wins against whichever analyses a model happened to meet, so the two can disagree. 7 · 5 of 10 measured 776 964
Cost per taskUS dollars, lower is better 8 · 6 of 10 measured $0.33 $0.13
Analysis scorepoints of 100, higher is better 6 · 5 of 10 measured 66.4 79.6
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Overall · TextArena rating, higher is better 15 · 1 of 387 measured 1,487 1,525high reasoning
Overall · Text factualityArena rating, higher is better 21 · 1 of 163 measured 1,472 1,511high reasoning
Business, management and finance · TextArena rating, higher is better 23 · 1 of 380 measured 1,477 1,522high reasoning
Artificial Analysis reported by Artificial Analysis · 3 results
Artificial Analysis Intelligence Indexindex score, higher is better 53 · 5 of 244 measured 29.7 52.6high reasoning
Humanity's Last Exam% of questions, higher is better 17 · 3 of 243 measured 47.0% 57.1%high reasoning
Terminal-Bench 4.0% of tasks, higher is better 46 · 4 of 113 measured 4.0% 57.1%high reasoning
Show all 103 results (82 more)
MeasureGemini 3.1 Pro PreviewGemini 4 Argon
BulletBench measured by Spring Prompt · 7 results
Games lost on time · Blitz 3+2% of games, lower is better 12 · 1 of 15 measured 50.0% 0.0%
Games lost on time · Bullet 60s% of games, lower is better 23 · 28 of 30 measured 58.3%low reasoning 87.5%
Invalid moves · Blitz 3+2% of moves, lower is better 1 · 1 of 15 measured 0.0% 0.0%
Invalid moves · Bullet 60s% of moves, lower is better 1 · 1 of 30 measured 0.0%low reasoning 0.0%
Ladder Elo · Blitz 3+2ladder Elo, higher is better 6 · 1 of 15 measured 683 1,147
Median move time · Blitz 3+2milliseconds, lower is better 11 · 5 of 15 measured 6.2 s 1.9 s
Median move time · Bullet 60smilliseconds, lower is better 29 · 28 of 30 measured 3.1 slow reasoning 2.9 s
CatalogBench measured by Spring Prompt · 28 results
Channel compliance% of products, higher is better 15 · 1 of 22 measured 99.4% 100.0%
Channel rules broken% of products, lower is better 12 · 1 of 22 measured 0.6% 0.0%
Channel rules broken · sales brief% of products, lower is better 1 · 1 of 22 measured 0.0% 0.0%
Claims to check% of products, lower is better 18 · 1 of 22 measured 1.2% 0.0%
Claims to check · sales brief% of products, lower is better 19 · 1 of 22 measured 10.1% 0.0%
Conflicts caught% of conflicts, higher is better 1 · 1 of 22 measured 100.0% 100.0%
Content quality% of checks, higher is better 12 · 4 of 22 measured 96.9% 98.2%
Content quality · sales brief% of checks, higher is better 12 · 4 of 22 measured 97.2% 98.4%
Decision accuracy% of decisions, higher is better 11 · 5 of 22 measured 96.6% 97.8%
Failed outputs% of products, lower is better 1 · 1 of 22 measured 0.0% 0.0%
Failed outputs · sales brief% of products, lower is better 1 · 1 of 22 measured 0.0% 0.0%
Field accuracy% of missing fields, higher is better 2 · 3 of 22 measured 95.4% 94.7%
Invented values% of filled values, lower is better 12 · 14 of 22 measured 1.5% 1.7%
Missing UK information% of products, lower is better 1 · 1 of 22 measured 0.0% 0.0%
Missing UK information · sales brief% of products, lower is better 1 · 1 of 22 measured 0.0% 0.0%
Not findable% of products, lower is better 15 · 3 of 22 measured 7.7% 2.4%
Not findable · sales brief% of products, lower is better 15 · 2 of 22 measured 6.0% 1.8%
Publish-ready listings% of products, higher is better 12 · 5 of 22 measured 58.9% 70.8%
Publish-ready listings · sales brief% of products, higher is better 11 · 8 of 22 measured 30.4% 35.1%
Time per productseconds, lower is better 17 · 3 of 22 measured 22.2 7.30
Unsupported claimsclaims per product, lower is better 11 · 6 of 22 measured 0.66 0.42
Unsupported claims% of products, lower is better 12 · 9 of 22 measured 26.8% 16.1%
Unsupported claims · sales briefclaims per product, lower is better 13 · 12 of 22 measured 2.13 1.98
Unsupported claims · sales brief% of products, lower is better 13 · 12 of 22 measured 67.3% 63.1%
Wrong attributes% of products, lower is better 5 · 6 of 22 measured 14.9% 15.5%
Wrong attributes · sales brief% of products, lower is better 10 · 7 of 22 measured 16.1% 15.5%
Wrong category or variant% of products, lower is better 4 · 4 of 22 measured 1.8% 1.8%
Wrong category or variant · sales brief% of products, lower is better 4 · 4 of 22 measured 1.8% 1.8%
DeckBench measured by Spring Prompt · 14 results
Caveat dropped% of tasks, lower is better 12 · 1 of 21 measured 16.7% 0.0%
Clean layout% of tasks, higher is better 11 · 13 of 21 measured 50.0% 33.3%
Design quality% of the maximum, higher is better 17 · 16 of 21 measured 51.4% 55.2%
Draft figure quoted% of tasks, lower is better 1 · 17 of 21 measured 0.0% 50.0%
Findings missing% of tasks, lower is better 1 · 1 of 21 measured 0.0% 0.0%
Head-to-head win rate% of comparisons, higher is betterThe rating weighs each win by how strong the other deck was; the win rate counts wins against whichever decks a model happened to meet, so the two can disagree. 16 · 13 of 21 measured 34.1% 57.0%
Layout defects% of tasks, lower is better 11 · 13 of 21 measured 50.0% 66.7%
Misleading metric used% of tasks, lower is better 1 · 1 of 21 measured 0.0% 0.0%
Presentable decks% of tasks, higher is better 10 · 12 of 21 measured 16.7% 0.0%
Recommendation late or wrong% of tasks, lower is better 15 · 1 of 21 measured 50.0% 0.0%
Slides needing work% of tasks, lower is better 19 · 15 of 21 measured 83.3% 66.7%
Time per deckseconds, lower is better 7 · 6 of 21 measured 78.0 67.5
Unsupported claims% of tasks, lower is better 1 · 11 of 21 measured 0.0% 16.7%
Unsupported numbers% of tasks, lower is better 1 · 1 of 21 measured 0.0% 0.0%
ROASBench measured by Spring Prompt · 6 results
Consistency scorescore out of 100, higher is better 6 · 5 of 21 measured 33.9 34.7
Contribution profitsimulated US dollars, higher is better 11 · 5 of 21 measured $507,736 $673,561
Cost of a runUS dollars, lower is better 15 · 11 of 21 measured $0.52 $0.24
Months over budgetmonths of 12, lower is better 1 · 1 of 21 measured 0 0
Planning scorescore out of 100, higher is better 8 · 1 of 21 measured 54.9 55.4
Return on ad spendprofit per $1 spent, higher is better 11 · 8 of 21 measured $0.42 $0.55
SurveyBench measured by Spring Prompt · 17 results
Head-to-head win rate% of comparisons, higher is betterThe rating weighs each win by how strong the other analysis was; the win rate counts wins against whichever analyses a model happened to meet, so the two can disagree. 6 · 5 of 10 measured 33.8% 42.2%
Leading or double-barrelled questions% of tasks, lower is better 5 · 8 of 10 measured 44.4% 66.7%
Mistaken next steps% of tasks, lower is better 5 · 5 of 10 measured 33.3% 33.3%
Numbers right% of answers, higher is better 1 · 7 of 10 measured 100.0% 97.1%
Objectives unanswerable% of tasks, lower is better 1 · 1 of 10 measured 0.0% 0.0%
Precision ignored% of tasks, lower is better 6 · 4 of 10 measured 55.6% 11.1%
Research scorepoints of 100, higher is better 6 · 5 of 10 measured 71.3 83.3
Sound research% of tasks, higher is better 5 · 5 of 10 measured 0.0% 0.0%
Stakeholder's view presumed% of tasks, lower is better 6 · 4 of 10 measured 22.2% 11.1%
Survey plan scorepoints of 100, higher is better 8 · 4 of 10 measured 82.9 91.8
Survey structure% of tasks, lower is better 7 · 1 of 10 measured 22.2% 0.0%
Time per taskseconds, lower is better 7 · 3 of 10 measured 170 74.4
Traps handled% of traps, higher is better 7 · 5 of 10 measured 71.0% 84.1%
Traps missed% of tasks, lower is better 6 · 5 of 10 measured 88.9% 77.8%
Unsupported findings% of tasks, lower is better 5 · 7 of 10 measured 77.8% 88.9%
Wrong numbers% of tasks, lower is better 1 · 7 of 10 measured 0.0% 33.3%
Wrong recommendation% of tasks, lower is better 7 · 3 of 10 measured 44.4% 11.1%
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 8 results
Confirmed task success · AgentIPS effect estimate, higher is better 42 · 3 of 48 measured -0.10arena agent 0.15high reasoning, arena agent
Creative writing · TextArena rating, higher is better 10 · 1 of 385 measured 1,480 1,519high reasoning
Expert prompts · TextArena rating, higher is better 26 · 7 of 338 measured 1,509 1,539high reasoning
Instruction following · TextArena rating, higher is better 17 · 1 of 387 measured 1,480 1,528high reasoning
Praise over complaint · AgentIPS effect estimate, higher is better 29 · 4 of 48 measured -0.01arena agent 0.28high reasoning, arena agent
Steerability · AgentIPS effect estimate, higher is better 37 · 1 of 48 measured -0.05arena agent 0.13high reasoning, arena agent
Tool grounding · AgentIPS effect estimate, higher is better 35 · 29 of 48 measured -0.00arena agent 0.00high reasoning, arena agent
Writing, literature and language · TextArena rating, higher is better 11 · 1 of 386 measured 1,480 1,522high reasoning
Artificial Analysis reported by Artificial Analysis · 2 results
Long-context reasoning (AA-LCR)% of questions, higher is better 24 · 44 of 234 measured 82.0% 79.7%high reasoning
SciCode% of problems, higher is better 13 · 3 of 114 measured 58.7% 61.8%high reasoning

Quick answers

Is Gemini 3.1 Pro Preview better than Gemini 4 Argon?

Pick Gemini 4 Argon: it scores higher (Spring Prompt overall 75 against 47) and costs less.

Which is cheaper, Gemini 3.1 Pro Preview or Gemini 4 Argon?

Gemini 4 Argon is cheaper to run: $0.011 against $0.035 per product listing on CatalogBench (3.2 times less).

Which is better for product listings, Gemini 3.1 Pro Preview or Gemini 4 Argon?

Gemini 4 Argon ranks 7 of 22 models on sale for turning a sparse product feed and photos into listings that can go live, against 10 for Gemini 3.1 Pro Preview.

Which is better for decks from an analysis, Gemini 3.1 Pro Preview or Gemini 4 Argon?

Gemini 4 Argon ranks 13 of 21 models on sale for turning a finished analysis into a deck you could present as it is, against 16 for Gemini 3.1 Pro Preview.

Which is better for user surveys, Gemini 3.1 Pro Preview or Gemini 4 Argon?

Gemini 4 Argon ranks 5 of 10 models on sale for planning a user survey and reading its results without being misled, against 7 for Gemini 3.1 Pro Preview.

Which is better for marketing planning, Gemini 3.1 Pro Preview or Gemini 4 Argon?

Gemini 4 Argon ranks 8 of 21 models on sale for planning a year of ad spend without overspending, against 10 for Gemini 3.1 Pro Preview.

Which is better for agents and tool use, Gemini 3.1 Pro Preview or Gemini 4 Argon?

Gemini 4 Argon ranks 3 of 166 models on sale for multi-step tasks with tools: support desks, coding agents, function calls, against 62 for Gemini 3.1 Pro Preview.

Run Gemini 3.1 Pro Preview and Gemini 4 Argon on your own prompt

Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.