Verdict
Built from the measurements below
- Accuracy is too close to call: Gemini 4 Argon scored 84.8% and Muse Wonder 78.8% on the same 79 questions, a gap within what chance alone could produce.
- Gemini 4 Argon is 3.4× cheaper per question as billed ($0.0063 vs $0.021), reasoning tokens included.
- Muse Wonder generates text 2.5× faster: 175 tokens per second against 69.
- Gemini 4 Argon starts answering sooner: 3.3 s to the first token, against 16.1 s for Muse Wonder.
Which should you choose?
Choose Gemini 4 Argon for the lower cost per correct answer ($0.0074 against $0.027), a quicker first token and shorter outputs (about 558 tokens per question against 1,014). Choose Muse Wonder for faster streaming. The widest subject gap is in law: Gemini 4 Argon answered 6 of 6 correctly, Muse Wonder 4 of 6. With so few questions per subject, treat this as a lead to test on your own prompts, not a result.
Accuracy gap +6.1 points (z = 0.99). We call a winner only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.