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 Muse Spark Open: 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/sMetaMuse Spark Open77.5% score · #9$0.0045 per question220 tok/s

Verdict

Built from the measurements below

  • Accuracy is too close to call: Gemini 3.5 Flash Lite scored 75.0% and Muse Spark Open 77.5% on the same 80 questions, a gap within what chance alone could produce.
  • Gemini 3.5 Flash Lite is 1.3× cheaper per question as billed ($0.0034 vs $0.0045), reasoning tokens included.
  • Gemini 3.5 Flash Lite generates text 1.9× faster: 409 tokens per second against 220.
  • Muse Spark Open starts answering sooner: 0.5 s to the first token, against 1.1 s for Gemini 3.5 Flash Lite.

Which should you choose?

Choose Gemini 3.5 Flash Lite for the lower cost per correct answer ($0.0045 against $0.0058) and faster streaming. Choose Muse Spark Open for a quicker first token, open weights you can run yourself and more hosts to choose from on OpenRouter (6 against 2).

Accuracy gap -2.5 points (z = -0.37). 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 LiteMuse Spark OpenEdge
Verification scoreHigher is better75.0%77.5%Too close to call
Cost per questionLower is better$0.0034$0.0045Gemini 3.5 Flash Lite
Output speedHigher is better409220Gemini 3.5 Flash Lite
Time to first tokenLower is better1.1 s0.5 sMuse Spark Open
End-to-end response timeLower is better2.8 s3.2 sGemini 3.5 Flash Lite
Tokens per questionLower is better1,311964Muse Spark Open
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, Muse Spark Open second

Verification scorehigher is better
Gemini 3.5 Flash Lite75.0%
Muse Spark Open77.5%
Cost per questionlower is better
Gemini 3.5 Flash Lite$0.0034
Muse Spark Open$0.0045
Output speedhigher is better
Gemini 3.5 Flash Lite409
Muse Spark Open220
Time to first tokenlower is better
Gemini 3.5 Flash Lite1.1 s
Muse Spark Open0.5 s
End-to-end response timelower is better
Gemini 3.5 Flash Lite2.8 s
Muse Spark Open3.2 s
Tokens per questionlower is better
Gemini 3.5 Flash Lite1,311
Muse Spark Open964
Context windowhigher is better
Gemini 3.5 Flash Lite1M
Muse Spark Open1M

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 LiteMuse Spark Open
CreatorGoogleMeta
Released21 Jul 202615 Oct 2026
Weights—Open weights
ReasoningYesYes
Inputtext, image, video, file, audiotext, image, video, file, audio
Outputtexttext
Context window1M tokens1M tokens
Knowledge cutoff——
List price in / out per 1M$0.3 / $2.5$1.25 / $4.25
Blended price per 1M (3:1)$0.85$2.00
Cheapest hostGoogle · $0.15 / $1.25Makora · $1.25 / $4.25
Hosts on OpenRouter26
Last tested26 Oct 202626 Oct 2026

Compare any two models →

Gemini 3.5 Flash Lite vs Muse Spark Open: frequently asked questions

Is Gemini 3.5 Flash Lite better than Muse Spark Open?
On accuracy they are statistically tied: Gemini 3.5 Flash Lite scored 75.0% and Muse Spark Open 77.5% 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 Muse Spark Open?
Gemini 3.5 Flash Lite is cheaper: $0.0034 per question as billed, against $0.0045. List prices: Gemini 3.5 Flash Lite $0.3 in / $2.5 out, Muse Spark Open $1.25 in / $4.25 out per million tokens.
Which is faster, Gemini 3.5 Flash Lite or Muse Spark Open?
Gemini 3.5 Flash Lite is faster at 409 output tokens per second, against 220. Time to first token: 1.1 s for Gemini 3.5 Flash Lite, 0.5 s for Muse Spark Open.
Which has the larger context window, Gemini 3.5 Flash Lite or Muse Spark Open?
Both accept about the same amount of context: 1M and 1M tokens.