Verdict
Built from the measurements below
- Muse Wonder is more accurate: 78.8% against 42.5% on the same 80 questions, a 36.3-point gap that is statistically significant.
- Llama 3.3 70B Instruct is 40× cheaper per question as billed ($0.00053 vs $0.021), reasoning tokens included.
- Muse Wonder generates text 4.2× faster: 175 tokens per second against 42.
- Llama 3.3 70B Instruct starts answering sooner: 0.7 s to the first token, against 16.1 s for Muse Wonder.
- Muse Wonder accepts more context: 1M tokens against 131k.
Which should you choose?
Choose Llama 3.3 70B Instruct for the lower cost per correct answer ($0.0013 against $0.027), a quicker first token, open weights you can run yourself and more hosts to choose from on OpenRouter (9 against 1). Choose Muse Wonder for the most accurate answers of the two, faster streaming and a 1M-token context window. The widest subject gap is in engineering: Muse Wonder answered 11 of 15 correctly, Llama 3.3 70B Instruct 2 of 15. With so few questions per subject, treat this as a lead to test on your own prompts, not a result.
Accuracy gap -36.3 points (z = -4.69). We call a winner only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.