ResearchLLM Verifications Leaderboard

Data as of · 78 models, 80 questions · reviewed by Suhas Bhairav · methodology

Head to head · tested 27 Oct 2026

Gemini 3.5 Flash Lite vs Gemini 4 Argon: accuracy, speed and price

Similar accuracy; Gemini 3.5 Flash Lite costs less per question.

GoogleGemini 3.5 Flash Lite75.0% score · #15$0.0034 per question409 tok/sGoogleGemini 4 Argon83.8% score · #2$0.0062 per question69 tok/s

Verdict

Built from the measurements below

  • Accuracy is too close to call: Gemini 3.5 Flash Lite scored 75.0% and Gemini 4 Argon 83.8% on the same 80 questions, a gap within what chance alone could produce.
  • Gemini 3.5 Flash Lite is 1.8× cheaper per question as billed ($0.0034 vs $0.0062), reasoning tokens included.
  • Gemini 3.5 Flash Lite generates text 5.9× faster: 409 tokens per second against 69.
  • Gemini 3.5 Flash Lite starts answering sooner: 1.1 s to the first token, against 3.3 s for Gemini 4 Argon.

Which should you choose?

Choose Gemini 3.5 Flash Lite for the lower cost per correct answer ($0.0045 against $0.0074), faster streaming and a quicker first token. Choose Gemini 4 Argon for shorter outputs (about 558 tokens per question against 1,311). The widest subject gap is in law: Gemini 4 Argon answered 6 of 6 correctly, Gemini 3.5 Flash Lite 4 of 6. With so few questions per subject, treat this as a lead to test on your own prompts, not a result.

Accuracy gap -8.8 points (z = -1.37). A winner is called only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.

Head to head

Same questions, same prompt, same API

MeasureGemini 3.5 Flash LiteGemini 4 ArgonEdge
Verification scoreHigher is better75.0%83.8%Too close to call
Cost per questionLower is better$0.0034$0.0062Gemini 3.5 Flash Lite
Output speedHigher is better40969Gemini 3.5 Flash Lite
Time to first tokenLower is better1.1 s3.3 sGemini 3.5 Flash Lite
End-to-end response timeLower is better2.8 s9.9 sGemini 3.5 Flash Lite
Tokens per questionLower is better1,311558Gemini 4 Argon
Context windowHigher is better1M1MSimilar

Side by side

Bars are scaled to the larger of the two values. The winner on each measure is marked in bold.

Every measure

Gemini 3.5 Flash Lite first, Gemini 4 Argon second

Verification scorehigher is better
Gemini 3.5 Flash Lite75.0%
Gemini 4 Argon83.8%
Cost per questionlower is better
Gemini 3.5 Flash Lite$0.0034
Gemini 4 Argon$0.0062
Output speedhigher is better
Gemini 3.5 Flash Lite409
Gemini 4 Argon69
Time to first tokenlower is better
Gemini 3.5 Flash Lite1.1 s
Gemini 4 Argon3.3 s
End-to-end response timelower is better
Gemini 3.5 Flash Lite2.8 s
Gemini 4 Argon9.9 s
Tokens per questionlower is better
Gemini 3.5 Flash Lite1,311
Gemini 4 Argon558
Context windowhigher is better
Gemini 3.5 Flash Lite1M
Gemini 4 Argon1M

Score vs. cost per question

Both models in color, every other model in grey

Most attractive quadrant0255075100$0.00001$0.0001$0.001$0.01$0.10Cost per question (USD, log) →Verification score (%) →Qwen3.8 2.4T A95BCommand AReka Flash 3Gemma 4 26B A4BGemma 4 31BQwen3.5 397B A17BHermes 4 405BMuse WonderGrok 4.7o3gpt-oss-20bMinistral 3 3B 2512Nova Micro 1.0Phi 4Granite 4.2 8BHy3GLM 5.3 FlashSolar Pro 4Trinity Large ThinkingMiniMax M3Mistral Large 4Claude Opus 5.5GPT-6.1 SolGemini 4 ArgonGPT-5.4GPT-6 Lunagpt-oss-120bLlama 4 Maverick

Specifications and pricing

From OpenRouter's catalogue, plus the leaderboard's test dates

SpecificationGemini 3.5 Flash LiteGemini 4 Argon
CreatorGoogleGoogle
Released21 Jul 202613 Oct 2026
Weights——
ReasoningYesYes
Inputtext, image, video, file, audioaudio, file, image, text, video
Outputtexttext
Context window1M tokens1M tokens
Knowledge cutoff——
List price in / out per 1M$0.3 / $2.5$2 / $10
Blended price per 1M (3:1)$0.85$4.00
Cheapest hostGoogle · $0.15 / $1.25Google AI Studio · $1 / $5
Hosts on OpenRouter22
Last tested26 Oct 202625 Oct 2026

Compare any two models →

Gemini 3.5 Flash Lite vs Gemini 4 Argon: frequently asked questions

Is Gemini 3.5 Flash Lite better than Gemini 4 Argon?
On accuracy they are statistically tied: Gemini 3.5 Flash Lite scored 75.0% and Gemini 4 Argon 83.8% on the same 80 questions from open datasets. Similar accuracy; Gemini 3.5 Flash Lite costs less per question.
Which is cheaper, Gemini 3.5 Flash Lite or Gemini 4 Argon?
Gemini 3.5 Flash Lite is cheaper: $0.0034 per question as billed, against $0.0062. List prices: Gemini 3.5 Flash Lite $0.3 in / $2.5 out, Gemini 4 Argon $2 in / $10 out per million tokens.
Which is faster, Gemini 3.5 Flash Lite or Gemini 4 Argon?
Gemini 3.5 Flash Lite is faster at 409 output tokens per second, against 69. Time to first token: 1.1 s for Gemini 3.5 Flash Lite, 3.3 s for Gemini 4 Argon.
Which has the larger context window, Gemini 3.5 Flash Lite or Gemini 4 Argon?
Both accept about the same amount of context: 1M and 1M tokens.