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Meta Llama-3.1 405B VS Meta Muse Spark 1.1

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

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Muse Spark 1.1 is the premium intelligence choice, scoring 27.5% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: Llama-3.1 405B is 1.0x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, Llama-3.1 405B offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Muse Spark 1.1 fully justifies the cost.
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Model Specs

Llama-3.1 405B

Benchmarks & Scores

Coding (human-eval)
89%

good at code completion, standalone functions, and basic algorithms

Reasoning (gpqa-diamond)
50.7%

graduate-level science QA

Cost & Performance

Cost (per 1M tokens)
N/AInput: N/A | Output: N/A
Context Window
131.07k tokens
Model Specs

Muse Spark 1.1

Benchmarks & Scores

Coding (swe-bench-pro)
61.5%

excellent at multi-file repositories, autonomous agents, and industrial codebases

Reasoning (gpqa-diamond)Winner (+40.5%)
91.16%

graduate-level science QA

Cost & Performance

Cost (per 1M tokens)
$2.00Input: $1.25 | Output: $4.25
Context WindowLarger
1.05M tokens

Frequently Asked Questions about Llama-3.1 405B vs Muse Spark 1.1 comparison

For coding tasks, Llama-3.1 405B scores 89% on human-eval (good at code completion, standalone functions, and basic algorithms), while Muse Spark 1.1 scores 61.5% on swe-bench-pro (excellent at multi-file repositories, autonomous agents, and industrial codebases).