Compare / Qwen3.5-397B-A17B vs Muse Spark 1.2

Qwen3.5-397B-A17B vs Muse Spark 1.2

Which is cheaper, which is more capable, and which does better at each kind of work, from 17 results on 3 sources that measured both models.

AlibabaQwen3.5-397B-A17B Released 13 Feb 2026 · $0.55 in · $3.50 out
MetaMuse Spark 1.2 Released 5 Aug 2026 · $1.25 in · $4.25 out
Qwen3.5-397B-A17B wins 01 too close to callMuse Spark 1.2 wins 16

Of the 17 results both models have, the better value on each. Results whose reported ranges overlap are too close to call.

Results as of 9 October 2026 (catalogue release 2026-10-09-dd620e778ac5). See also Alibaba vs Meta, every model from both labs.

Qwen3.5-397B-A17B or Muse Spark 1.2? The short answer

Pick Muse Spark 1.2 if quality matters most: it scores higher (Intelligence Index 39.6 against 21.4). Pick Qwen3.5-397B-A17B if cost matters more: it costs 36% less per token.

  • Qwen3.5-397B-A17B is cheaper: $1.29 against $2.00 per million tokens, 36% less.
  • Muse Spark 1.2 scores higher on the Artificial Analysis Intelligence Index: 39.6 against 21.4.
  • Muse Spark 1.2 is newer: released 5 Aug 2026, against 13 Feb 2026 for Qwen3.5-397B-A17B.
  • On third-party benchmarks, on the results both models have: Muse Spark 1.2 does better for agents and tool use, professional work, reasoning and knowledge, writing and sticking to the facts.

Head to head

21.4
Intelligence Index
39.6
$1.29
Price per million tokens, blendedlower is better
$2.00
262,144
Context window, tokens
1,048,576

Every fact side by side

Qwen3.5-397B-A17BMuse Spark 1.2
Price per million tokens$0.55 in · $3.50 out$1.25 in · $4.25 out
Blended (3 in : 1 out)$1.29$2.00
Cheapest host, blended$0.88 (Alibaba)–
Intelligence Index21.439.6
Spring Prompt overall––
Output speed, tokens a second90–
Context window262,144 tokens1,048,576 tokens
Released13 Feb 20265 Aug 2026 (newer)
WeightsOpenClosed
Developer based inChinathe 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.

Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls 70 of 164 39 of 164
Professional workReal tasks from banking, consulting and law, business documents and freelance projects 48 of 51 38 of 51
Reasoning and knowledgeHard questions across science, maths and general knowledge 73 of 198 28 of 198
WritingWhat people prefer in blind comparisons, and judged writing quality 69 of 188 7 of 188
Sticking to the factsSummarising without inventing things, and factual answers 75 of 152 17 of 152

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.

MeasureQwen3.5-397B-A17BMuse Spark 1.2
APEX-Agents reported by APEX-Agents · 1 result
Tasks passed% of tasks, higher is better 36 · 32 of 37 measured 24.9% 36.4%
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 3 results
Overall · TextArena rating, higher is better 80 · 9 of 387 measured 1,442 1,494xhigh reasoning
Overall · Text factualityArena rating, higher is better 70 · 10 of 163 measured 1,445 1,483xhigh reasoning
Business, management and finance · TextArena rating, higher is better 73 · 2 of 380 measured 1,446 1,514xhigh reasoning
Artificial Analysis reported by Artificial Analysis · 3 results
Artificial Analysis Intelligence Indexindex score, higher is better 97 · 27 of 243 measured 21.4no reasoning 39.6xhigh reasoning
GPQA Diamond% of questions, higher is better 53 · 39 of 231 measured 89.3% 90.4%xhigh reasoning
Humanity's Last Exam% of questions, higher is better 77 · 20 of 242 measured 29.0% 45.5%xhigh reasoning
Show all 17 results (10 more)
MeasureQwen3.5-397B-A17BMuse Spark 1.2
Arena (formerly LMArena) reported by Arena (formerly LMArena) · 4 results
Creative writing · TextArena rating, higher is better 86 · 25 of 385 measured 1,405 1,455xhigh reasoning
Expert prompts · TextArena rating, higher is better 67 · 34 of 338 measured 1,477 1,502xhigh reasoning
Instruction following · TextArena rating, higher is better 78 · 20 of 387 measured 1,434 1,477xhigh reasoning
Writing, literature and language · TextArena rating, higher is better 80 · 20 of 386 measured 1,421 1,470xhigh reasoning
Artificial Analysis reported by Artificial Analysis · 6 results
Terminal-Bench 2.1% of tasks, higher is better 61 · 24 of 130 measured 51.3% 80.2%xhigh reasoning
Terminal-Bench 4.0% of tasks, higher is better 66 · 40 of 112 measured 0.0% 7.1%xhigh reasoning
τ-bench banking% of tasks, higher is better 64 · 26 of 121 measured 13.4% 34.8%xhigh reasoning
Artificial Analysis Coding Indexindex score, higher is better 61 · 19 of 131 measured 48.2 72.2xhigh reasoning
Long-context reasoning (AA-LCR)% of questions, higher is better 66 · 50 of 233 measured 77.3% 79.0%xhigh reasoning
SciCode% of problems, higher is better 66 · 16 of 113 measured 44.8% 57.4%xhigh reasoning

Quick answers

Is Qwen3.5-397B-A17B better than Muse Spark 1.2?

Pick Muse Spark 1.2 if quality matters most: it scores higher (Intelligence Index 39.6 against 21.4). Pick Qwen3.5-397B-A17B if cost matters more: it costs 36% less per token.

Which is cheaper, Qwen3.5-397B-A17B or Muse Spark 1.2?

Qwen3.5-397B-A17B is cheaper: $1.29 against $2.00 per million tokens, 36% less.

Which is better for agents and tool use, Qwen3.5-397B-A17B or Muse Spark 1.2?

Muse Spark 1.2 ranks 39 of 164 models on sale for multi-step tasks with tools: support desks, coding agents, function calls, against 70 for Qwen3.5-397B-A17B.

Which is better for professional work, Qwen3.5-397B-A17B or Muse Spark 1.2?

Muse Spark 1.2 ranks 38 of 51 models on sale for real tasks from banking, consulting and law, business documents and freelance projects, against 48 for Qwen3.5-397B-A17B.

Which is better for reasoning and knowledge, Qwen3.5-397B-A17B or Muse Spark 1.2?

Muse Spark 1.2 ranks 28 of 198 models on sale for hard questions across science, maths and general knowledge, against 73 for Qwen3.5-397B-A17B.

Which is better for writing, Qwen3.5-397B-A17B or Muse Spark 1.2?

Muse Spark 1.2 ranks 7 of 188 models on sale for what people prefer in blind comparisons, and judged writing quality, against 69 for Qwen3.5-397B-A17B.

Which is better for sticking to the facts, Qwen3.5-397B-A17B or Muse Spark 1.2?

Muse Spark 1.2 ranks 17 of 152 models on sale for summarising without inventing things, and factual answers, against 75 for Qwen3.5-397B-A17B.

Which has the bigger context window, Qwen3.5-397B-A17B or Muse Spark 1.2?

Muse Spark 1.2: 1,048,576 tokens, against 262,144 for Qwen3.5-397B-A17B.

Run Qwen3.5-397B-A17B and Muse Spark 1.2 on your own prompt

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