Verdict
Built from the measurements below
- Accuracy is too close to call: Grok 4.7 scored 80.0% and Muse Wonder 78.8% on the same 80 questions, a gap within what chance alone could produce.
- Muse Wonder is 1.2× cheaper per question as billed ($0.021 vs $0.025), reasoning tokens included.
- Muse Wonder generates text 2.3× faster: 175 tokens per second against 77.
- Grok 4.7 starts answering sooner: 1.9 s to the first token, against 16.1 s for Muse Wonder.
- Muse Wonder accepts more context: 1M tokens against 500k.
Which should you choose?
Choose Grok 4.7 for a quicker first token. Choose Muse Wonder for the lower cost per correct answer ($0.027 against $0.031), faster streaming, shorter outputs (about 1,014 tokens per question against 3,952) and a 1M-token context window.
Accuracy gap +1.3 points (z = 0.20). We call a winner only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.