Gemini 4 Argon scores 70.3 on the Respan Index (#3), ahead of Muse Spark 1.3 at 54.1 (#13). Gemini 4 Argon leads on 7 of the 7 benchmarks both report. Muse Spark 1.3 is 2.0x cheaper per token at list price.
* Estimated: no published scores in that category. How the Respan Index works
| LMArena WebDev (LMArena) |
| 1680 |
| 1657 |
| AutomationBench | 51.3% | 49.6% |
| DeepSWE v1.1 | 77.9% | 75.4% |
Higher is better. Each score links to where it was published.