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AnthropicClaude Opus 5VSMetaMuse Spark 1.1

Analysis by:the whichllmmodel Editorial Team|Updated: June 2026

Our Take

We recommend Claude Opus 5 if you need peak intelligence for reasoning and coding tasks, or the 5.0x cheaper Muse Spark 1.1 to optimize your budget for high-volume pipelines. While Claude Opus 5 holds a clear performance lead, it carries a heavy price premium. Choose Claude Opus 5 for complex logic, or Muse Spark 1.1 for budget efficiency.
▶WHY?
Benchmark Calculations & Evidence:
  • Coding Benchmarks: Both models were evaluated on the SWE-bench Pro benchmark. Claude Opus 5 scored 79.2%, while Muse Spark 1.1 scored 61.5%.
  • Reasoning Benchmarks: Both models were evaluated on the GPQA Diamond benchmark. Claude Opus 5 scored 93.7%, while Muse Spark 1.1 scored 91.16%.
  • Cost Efficiency: Muse Spark 1.1 pricing ($1.25/M input, $4.25/M output) is 5.0x cheaper than Claude Opus 5 ($5/M input, $25/M output).
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    Model Specs

    Claude Opus 5

    Website

    Benchmarks & Scores

    Coding (swe-bench-pro)Winner (+17.7%)
    79.2%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)Winner (+2.5%)
    93.7%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $10.00Input: $5.00 | Output: $25.00
    Context Window
    1.05M tokens
    Model Specs

    Muse Spark 1.1

    Website

    Benchmarks & Scores

    Coding (swe-bench-pro)
    61.5%

    complex codebases, multi-file repositories, and architectural planning

    Reasoning (gpqa-diamond)
    91.16%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)5.0x cheaper
    $2.00Input: $1.25 | Output: $4.25
    Context Window
    1.05M tokens
    Read our data collection methodology

    Frequently Asked Questions about Claude Opus 5 vs Muse Spark 1.1

    Muse Spark 1.1 is cheaper than Claude Opus 5. Muse Spark 1.1 has a blended cost of $2.00/1M tokens, which is about 5.0x cheaper than Claude Opus 5 at $10.00/1M tokens.

    Claude Opus 5 is better for coding tasks on this benchmark. It scores 79.2% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning) compared to Muse Spark 1.1 which scores 61.5%.

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