ResearchLLM Verifications Leaderboard

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

Head to head · tested 27 Oct 2026

Grok 4.7 vs Muse Spark Open: accuracy, speed and price

Similar accuracy; Muse Spark Open costs less per question.

SpaceXAIGrok 4.780.0% score · #6$0.025 per question77 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: Grok 4.7 scored 80.0% and Muse Spark Open 77.5% on the same 80 questions, a gap within what chance alone could produce.
  • Muse Spark Open is 5.5× cheaper per question as billed ($0.0045 vs $0.025), reasoning tokens included.
  • Muse Spark Open generates text 2.9× faster: 220 tokens per second against 77.
  • Muse Spark Open starts answering sooner: 0.5 s to the first token, against 1.9 s for Grok 4.7.
  • Muse Spark Open accepts more context: 1M tokens against 500k.

Which should you choose?

Choose Muse Spark Open for the lower cost per correct answer ($0.0058 against $0.031), faster streaming, a quicker first token, shorter outputs (about 964 tokens per question against 3,952), open weights you can run yourself, a 1M-token context window and more hosts to choose from on OpenRouter (6 against 1). The widest subject gap is in science: Grok 4.7 answered 27 of 30 correctly, Muse Spark Open 25 of 30. With so few questions per subject, treat this as a lead to test on your own prompts, not a result.

Accuracy gap +2.5 points (z = 0.39). 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

MeasureGrok 4.7Muse Spark OpenEdge
Verification scoreHigher is better80.0%77.5%Too close to call
Cost per questionLower is better$0.025$0.0045Muse Spark Open
Output speedHigher is better77220Muse Spark Open
Time to first tokenLower is better1.9 s0.5 sMuse Spark Open
End-to-end response timeLower is better8.0 s3.2 sMuse Spark Open
Tokens per questionLower is better3,952964Muse Spark Open
Context windowHigher is better500k1MMuse Spark Open

Side by side

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

Every measure

Grok 4.7 first, Muse Spark Open second

Verification scorehigher is better
Grok 4.780.0%
Muse Spark Open77.5%
Cost per questionlower is better
Grok 4.7$0.025
Muse Spark Open$0.0045
Output speedhigher is better
Grok 4.777
Muse Spark Open220
Time to first tokenlower is better
Grok 4.71.9 s
Muse Spark Open0.5 s
End-to-end response timelower is better
Grok 4.78.0 s
Muse Spark Open3.2 s
Tokens per questionlower is better
Grok 4.73,952
Muse Spark Open964
Context windowhigher is better
Grok 4.7500k
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

SpecificationGrok 4.7Muse Spark Open
CreatorSpaceXAIMeta
Released21 Sept 202615 Oct 2026
Weights—Open weights
ReasoningYesYes
Inputtext, image, filetext, image, video, file, audio
Outputtexttext
Context window500k tokens1M tokens
Knowledge cutoff——
List price in / out per 1M$2 / $6$1.25 / $4.25
Blended price per 1M (3:1)$3.00$2.00
Cheapest hostxAI · $2 / $6Makora · $1.25 / $4.25
Hosts on OpenRouter16
Last tested27 Oct 202626 Oct 2026

Compare any two models →

Grok 4.7 vs Muse Spark Open: frequently asked questions

Is Grok 4.7 better than Muse Spark Open?
On accuracy they are statistically tied: Grok 4.7 scored 80.0% and Muse Spark Open 77.5% on the same 80 questions from open datasets. Similar accuracy; Muse Spark Open costs less per question.
Which is cheaper, Grok 4.7 or Muse Spark Open?
Muse Spark Open is cheaper: $0.0045 per question as billed, against $0.025. List prices: Grok 4.7 $2 in / $6 out, Muse Spark Open $1.25 in / $4.25 out per million tokens.
Which is faster, Grok 4.7 or Muse Spark Open?
Muse Spark Open is faster at 220 output tokens per second, against 77. Time to first token: 1.9 s for Grok 4.7, 0.5 s for Muse Spark Open.
Which has the larger context window, Grok 4.7 or Muse Spark Open?
Muse Spark Open, with 1M tokens against 500k.