Muse Spark 1.3 vs Qwen3.8 27B

API pricing, context window and capabilities for Muse Spark 1.3 and Qwen3.8 27B, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

Muse Spark 1.3 wins on Terminal-Bench, on intelligence and on context window. Qwen3.8 27B wins on price.

Price
Qwen3.8 27B
Terminal-Bench
Muse Spark 1.3
Intelligence
Muse Spark 1.3
Context window
Muse Spark 1.3

Key takeaways

who wins on what, from the published numbers

Muse Spark 1.3 wins

  • Larger context window (1M vs 262K)
  • Higher max output (131K vs 33K)
  • Has web search

Qwen3.8 27B wins

  • Cheaper input ($1.25 vs $0.04 /1M)
  • Cheaper output ($4.25 vs $1.49 /1M)
  • More serving providers (4 vs 7)
Cheaper overall
Qwen3.8 27B
$0.04 + $1.49 /1M
Larger context
Muse Spark 1.3
1M
More providers
Qwen3.8 27B
7 providers

Pricing & specs

cheapest listed route · per 1M tokens
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
Muse Spark 1.3Qwen3.8 27B
Input $/1M$1.25via Azure $0.04OpenRouter routed quote best
Output $/1M$4.25via Azure $1.49via Cerebras best
Context window1M best262K
Max output131K best33K
Serving providers4 7 best
DateReleased Sep 2, 2026 Released Aug 14, 2026

Benchmarks

Benchmark scores, side by side
Muse Spark 1.3Qwen3.8 27B
Intelligence48.1 best33.7
Terminal-Bench84% best80%
GPQA Diamond94% best91%
Output speed128 t/s best45 t/s
Latency (TTFT)41.69s 3.83s best

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
Muse Spark 1.3
via Meta
$11
Qwen3.8 27B
via OpenRouter
$2.50

Capabilities

feature support, side by side
FeatureMuse Spark 1.3Qwen3.8 27B
Vision✓✓
Tool use✓✓
Reasoning✓✓
Audio——
Prompt caching✓✓
Structured output✓✓
Web search✓—

Related comparisons

Frequently asked questions

Which is cheaper, Muse Spark 1.3 or Qwen3.8 27B?
Qwen3.8 27B is cheaper for input ($1.25 vs $0.04 per 1M tokens) as an OpenRouter routed quote. Qwen3.8 27B is cheaper for output ($4.25 vs $1.49 per 1M tokens) from Cerebras.
What is the context window difference between Muse Spark 1.3 and Qwen3.8 27B?
Muse Spark 1.3 has a 1M-token context window and Qwen3.8 27B has 262K tokens, so Muse Spark 1.3 can take a larger prompt.
How do Muse Spark 1.3 and Qwen3.8 27B compare on benchmarks?
On the tracked benchmarks, Muse Spark 1.3 leads on Terminal-Bench, and Muse Spark 1.3 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Sep 28, 2026

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