Gemini 4 Argon scores 70.3 on the Respan Index (#3), ahead of GPT-5.6 Terra at 53.5 (#14). Gemini 4 Argon leads on 7 of the 7 benchmarks both report. Gemini 4 Argon is 1.1x cheaper per token at list price.
* Estimated: no published scores in that category. How the Respan Index works
| LMArena Agent (LMArena) |
| 0.0757 |
| 0.004 |
| LMArena Elo | 1525 | 1466 |
| DeepSWE v1.1 | 77.9% | 69.6% |
Higher is better. Each score links to where it was published.