token.app › Compare › Claude Opus 5 (Fast) vs Muse Spark 1.2

Claude Opus 5 (Fast) vs Muse Spark 1.2

Muse Spark 1.2 is 10× cheaper per token on a blended 3:1 basis. Muse Spark 1.2 accepts the larger context window (1.0M).

Head to head
Blended price uses a 3:1 input:output mix
Claude Opus 5 (Fast)Muse Spark 1.2
ProviderAnthropicMeta
Input $/1M$10.00$1.25
Output $/1M$50.00$4.25
Blended $/1M$20.00$2.00
Context window1M1.0M
Max output128K—
ReleasedJul 2026Aug 2026
LicenceProprietaryProprietary
Choose Claude Opus 5 (Fast) if…
  • No clear advantage on the data we hold.
Choose Muse Spark 1.2 if…
  • Costs less per token — $2.00 vs $20.00 blended
  • Larger context window (1.0M)
  • Newer model (released Aug 2026)
FAQ
Which is better, Claude Opus 5 (Fast) or Muse Spark 1.2?
We do not hold independently-run benchmark scores covering both Claude Opus 5 (Fast) and Muse Spark 1.2, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Claude Opus 5 (Fast) cheaper than Muse Spark 1.2?
Muse Spark 1.2 is cheaper: $2.00 versus $20.00 per million tokens blended at 3:1 input:output. Input alone: $10.00 vs $1.25. Output alone: $50.00 vs $4.25.
What context windows do Claude Opus 5 (Fast) and Muse Spark 1.2 have?
Claude Opus 5 (Fast): 1,000,000 tokens. Muse Spark 1.2: 1,048,576 tokens.
Who makes Claude Opus 5 (Fast) and Muse Spark 1.2?
Claude Opus 5 (Fast) is made by Anthropic. Muse Spark 1.2 is made by Meta.
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