Compare / Gemini 3.5 Flash-Lite vs Gemini 4 Argon

Gemini 3.5 Flash-Lite vs Gemini 4 Argon

Which is cheaper, which is more capable, and which does better at each kind of work, from 99 results on 7 sources that measured both models.

GoogleGemini 3.5 Flash-Lite Released 21 Jul 2026 · $0.30 in · $2.50 out
GoogleGemini 4 Argon Released 13 Oct 2026 · $2.00 in · $10.00 out
Gemini 3.5 Flash-Lite wins 1615 too close to callGemini 4 Argon wins 68

Of the 99 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 3.5 Flash-Lite or Gemini 4 Argon? The short answer

Pick Gemini 4 Argon if quality matters most: it scores higher (Spring Prompt overall 75 against 26). Pick Gemini 3.5 Flash-Lite if cost matters more: it costs 5.3 times less per product listing on CatalogBench.

  • Spring Prompt overall: Gemini 3.5 Flash-Lite 26, Gemini 4 Argon 75 (out of 100; how the score works).
  • Gemini 3.5 Flash-Lite is cheaper to run: $0.002 against $0.011 per product listing on CatalogBench (5.3 times less).
  • Gemini 4 Argon scores higher on the Artificial Analysis Intelligence Index: 52.6 against 22.2.
  • Gemini 4 Argon is newer: released 13 Oct 2026, against 21 Jul 2026 for Gemini 3.5 Flash-Lite.
  • On our own benchmarks, on the results both models have: Gemini 3.5 Flash-Lite does better for speed under pressure; Gemini 4 Argon 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

26
Spring Prompt overall
75
22.2
Intelligence Index
52.6
$0.85
Price per million tokens, blendedlower is better
$4.00
1,048,576
Context window, tokens
1,048,576

Every fact side by side

Gemini 3.5 Flash-LiteGemini 4 Argon
Price per million tokens$0.30 in · $2.50 out$2.00 in · $10.00 out
Blended (3 in : 1 out)$0.85$4.00
Cheapest host, blended$0.85 (Google)–
Cost per product listing (CatalogBench)$0.002$0.011
Cached input, per million$0.030 cached input–
Intelligence Index22.252.6
Spring Prompt overall2675
Output speed, tokens a second393–
Context window1,048,576 tokens1,048,576 tokens
Released21 Jul 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 18 of 22 7 of 22
Decks from an analysisTurning a finished analysis into a deck you could present as it is 18 of 21 13 of 21
User surveysPlanning a user survey and reading its results without being misled 8 of 10 5 of 10
Marketing planningPlanning a year of ad spend without overspending 17 of 21 8 of 21
Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls 75 of 166 3 of 166
Professional workReal tasks from banking, consulting and law, business documents and freelance projects 46 of 51 not measured
Reasoning and knowledgeHard questions across science, maths and general knowledge 93 of 200 3 of 200
WritingWhat people prefer in blind comparisons, and judged writing quality 50 of 189 1 of 189
Sticking to the factsSummarising without inventing things, and factual answers 63 of 153 1 of 153
Speed under pressureGood decisions against a real clock (fast chess) 2 of 25 20 of 25

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 3.5 Flash-LiteGemini 4 Argon
BulletBench measured by Spring Prompt · 3 results
Cost per game · Blitz 3+2US dollars, lower is better 3 · 10 of 15 measured $0.0087 $0.12
Cost per game · Bullet 60sUS dollars, lower is better 14 · 10 of 30 measured $0.0058 $0.0036
Ladder Elo · Bullet 60sladder Elo, higher is better 5 · 26 of 30 measured 780 147
CatalogBench measured by Spring Prompt · 3 results
Cost per productUS dollars, lower is better 3 · 12 of 22 measured $0.0020 $0.0109
Reliably publish-ready% of products, higher is better 18 · 5 of 22 measured 17.9% 60.7%
Reliably publish-ready · sales brief% of products, higher is better 16 · 9 of 22 measured 3.6% 17.9%
DeckBench measured by Spring Prompt · 3 results
Cost per deckUS dollars, lower is better 3 · 10 of 21 measured $0.0126 $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. 18 · 13 of 21 measured 655 998
Accurate decks% of tasks, higher is better 18 · 13 of 21 measured 0.0% 33.3%
ROASBench measured by Spring Prompt · 3 results
Overall scorescore out of 100, higher is better 17 · 8 of 21 measured 25.4 47.0
Audience scorescore out of 100, higher is better 17 · 8 of 21 measured 45.0 65.5
Business scorescore out of 100, higher is better 19 · 8 of 21 measured 12.6 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. 8 · 5 of 10 measured 623 964
Cost per taskUS dollars, lower is better 1 · 6 of 10 measured $0.0144 $0.13
Analysis scorepoints of 100, higher is better 10 · 5 of 10 measured 56.7 79.6
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Overall · TextArena rating, higher is better 61 · 1 of 387 measured 1,455 1,525high reasoning
Overall · Text factualityArena rating, higher is better 63 · 1 of 163 measured 1,447 1,511high reasoning
Business, management and finance · TextArena rating, higher is better 63 · 1 of 380 measured 1,452 1,522high reasoning
Artificial Analysis reported by Artificial Analysis · 3 results
Artificial Analysis Intelligence Indexindex score, higher is better 93 · 5 of 244 measured 22.2 52.6high reasoning
Humanity's Last Exam% of questions, higher is better 115 · 3 of 243 measured 18.8% 57.1%high reasoning
Terminal-Bench 4.0% of tasks, higher is better 53 · 4 of 113 measured 1.0% 57.1%high reasoning
Show all 99 results (78 more)
MeasureGemini 3.5 Flash-LiteGemini 4 Argon
BulletBench measured by Spring Prompt · 7 results
Games lost on time · Blitz 3+2% of games, lower is better 1 · 1 of 15 measured 0.0% 0.0%
Games lost on time · Bullet 60s% of games, lower is better 1 · 28 of 30 measured 0.0% 87.5%
Invalid moves · Blitz 3+2% of moves, lower is better 13 · 1 of 15 measured 0.5% 0.0%
Invalid moves · Bullet 60s% of moves, lower is better 1 · 1 of 30 measured 0.0% 0.0%
Ladder Elo · Blitz 3+2ladder Elo, higher is better 5 · 1 of 15 measured 707 1,147
Median move time · Blitz 3+2milliseconds, lower is better 2 · 5 of 15 measured 0.8 s 1.9 s
Median move time · Bullet 60smilliseconds, lower is better 14 · 28 of 30 measured 0.9 s 2.9 s
CatalogBench measured by Spring Prompt · 28 results
Channel compliance% of products, higher is better 22 · 1 of 22 measured 98.2% 100.0%
Channel rules broken% of products, lower is better 20 · 1 of 22 measured 1.8% 0.0%
Channel rules broken · sales brief% of products, lower is better 17 · 1 of 22 measured 1.2% 0.0%
Claims to check% of products, lower is better 19 · 1 of 22 measured 1.8% 0.0%
Claims to check · sales brief% of products, lower is better 18 · 1 of 22 measured 7.7% 0.0%
Conflicts caught% of conflicts, higher is better 22 · 1 of 22 measured 84.9% 100.0%
Content quality% of checks, higher is better 18 · 4 of 22 measured 95.5% 98.2%
Content quality · sales brief% of checks, higher is better 18 · 4 of 22 measured 94.8% 98.4%
Decision accuracy% of decisions, higher is better 17 · 5 of 22 measured 93.4% 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 16 · 3 of 22 measured 92.5% 94.7%
Invented values% of filled values, lower is better 8 · 14 of 22 measured 0.8% 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 22 · 3 of 22 measured 20.2% 2.4%
Not findable · sales brief% of products, lower is better 22 · 2 of 22 measured 21.4% 1.8%
Publish-ready listings% of products, higher is better 19 · 5 of 22 measured 35.1% 70.8%
Publish-ready listings · sales brief% of products, higher is better 18 · 8 of 22 measured 10.7% 35.1%
Time per productseconds, lower is better 1 · 3 of 22 measured 3.30 7.30
Unsupported claimsclaims per product, lower is better 17 · 6 of 22 measured 1.18 0.42
Unsupported claims% of products, lower is better 16 · 9 of 22 measured 33.3% 16.1%
Unsupported claims · sales briefclaims per product, lower is better 16 · 12 of 22 measured 3.44 1.98
Unsupported claims · sales brief% of products, lower is better 16 · 12 of 22 measured 78.6% 63.1%
Wrong attributes% of products, lower is better 21 · 6 of 22 measured 34.5% 15.5%
Wrong attributes · sales brief% of products, lower is better 20 · 7 of 22 measured 35.1% 15.5%
Wrong category or variant% of products, lower is better 21 · 4 of 22 measured 9.5% 1.8%
Wrong category or variant · sales brief% of products, lower is better 21 · 4 of 22 measured 10.7% 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 13 · 13 of 21 measured 33.3% 33.3%
Design quality% of the maximum, higher is better 14 · 16 of 21 measured 60.2% 55.2%
Draft figure quoted% of tasks, lower is better 17 · 17 of 21 measured 50.0% 50.0%
Findings missing% of tasks, lower is better 21 · 1 of 21 measured 33.3% 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. 18 · 13 of 21 measured 28.5% 57.0%
Layout defects% of tasks, lower is better 13 · 13 of 21 measured 66.7% 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 12 · 12 of 21 measured 0.0% 0.0%
Recommendation late or wrong% of tasks, lower is better 20 · 1 of 21 measured 83.3% 0.0%
Slides needing work% of tasks, lower is better 2 · 15 of 21 measured 16.7% 66.7%
Time per deckseconds, lower is better 1 · 6 of 21 measured 15.2 67.5
Unsupported claims% of tasks, lower is better 11 · 11 of 21 measured 16.7% 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 14 · 5 of 21 measured 21.8 34.7
Contribution profitsimulated US dollars, higher is better 18 · 5 of 21 measured $11,834 $673,561
Cost of a runUS dollars, lower is better 4 · 11 of 21 measured $0.0390 $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 7 · 1 of 21 measured 54.9 55.4
Return on ad spendprofit per $1 spent, higher is better 18 · 8 of 21 measured $0.01 $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. 8 · 5 of 10 measured 24.5% 42.2%
Leading or double-barrelled questions% of tasks, lower is better 10 · 8 of 10 measured 77.8% 66.7%
Mistaken next steps% of tasks, lower is better 7 · 5 of 10 measured 44.4% 33.3%
Numbers right% of answers, higher is better 8 · 7 of 10 measured 75.5% 97.1%
Objectives unanswerable% of tasks, lower is better 10 · 1 of 10 measured 33.3% 0.0%
Precision ignored% of tasks, lower is better 8 · 4 of 10 measured 100.0% 11.1%
Research scorepoints of 100, higher is better 10 · 5 of 10 measured 55.6 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 10 · 4 of 10 measured 55.6% 11.1%
Survey plan scorepoints of 100, higher is better 10 · 4 of 10 measured 53.1 91.8
Survey structure% of tasks, lower is better 10 · 1 of 10 measured 55.6% 0.0%
Time per taskseconds, lower is better 1 · 3 of 10 measured 16.3 74.4
Traps handled% of traps, higher is better 10 · 5 of 10 measured 56.5% 84.1%
Traps missed% of tasks, lower is better 8 · 5 of 10 measured 100.0% 77.8%
Unsupported findings% of tasks, lower is better 4 · 7 of 10 measured 66.7% 88.9%
Wrong numbers% of tasks, lower is better 8 · 7 of 10 measured 100.0% 33.3%
Wrong recommendation% of tasks, lower is better 6 · 3 of 10 measured 22.2% 11.1%
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 4 results
Creative writing · TextArena rating, higher is better 52 · 1 of 385 measured 1,436 1,519high reasoning
Expert prompts · TextArena rating, higher is better 78 · 7 of 338 measured 1,470 1,539high reasoning
Instruction following · TextArena rating, higher is better 67 · 1 of 387 measured 1,443 1,528high reasoning
Writing, literature and language · TextArena rating, higher is better 56 · 1 of 386 measured 1,443 1,522high reasoning
Artificial Analysis reported by Artificial Analysis · 2 results
Long-context reasoning (AA-LCR)% of questions, higher is better 74 · 44 of 234 measured 76.0% 79.7%high reasoning
SciCode% of problems, higher is better 76 · 3 of 114 measured 41.3% 61.8%high reasoning

Quick answers

Is Gemini 3.5 Flash-Lite better than Gemini 4 Argon?

Pick Gemini 4 Argon if quality matters most: it scores higher (Spring Prompt overall 75 against 26). Pick Gemini 3.5 Flash-Lite if cost matters more: it costs 5.3 times less per product listing on CatalogBench.

Which is cheaper, Gemini 3.5 Flash-Lite or Gemini 4 Argon?

Gemini 3.5 Flash-Lite is cheaper to run: $0.002 against $0.011 per product listing on CatalogBench (5.3 times less).

Which is better for product listings, Gemini 3.5 Flash-Lite 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 18 for Gemini 3.5 Flash-Lite.

Which is better for decks from an analysis, Gemini 3.5 Flash-Lite 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 18 for Gemini 3.5 Flash-Lite.

Which is better for user surveys, Gemini 3.5 Flash-Lite 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 8 for Gemini 3.5 Flash-Lite.

Which is better for marketing planning, Gemini 3.5 Flash-Lite or Gemini 4 Argon?

Gemini 4 Argon ranks 8 of 21 models on sale for planning a year of ad spend without overspending, against 17 for Gemini 3.5 Flash-Lite.

Which is better for agents and tool use, Gemini 3.5 Flash-Lite 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 75 for Gemini 3.5 Flash-Lite.

Run Gemini 3.5 Flash-Lite 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.