Musk says Grok 4.5 and Claude Opus 5 are the only models on the Pareto frontier
elonmusk · x · 2026-07-25
Elon Musk says Grok 4.5 and Claude Opus 5 are the only models on the Pareto frontier in the attached FrontierCode chart.
- The image compares score vs. average cost per rollout and highlights Grok 4.5 and Opus 5 as the top trade-off pair.
- Several other models trail below them on the chart, including Fable 5, GPT-5.6 Sol, Sonnet 5, Kimi K2.7, GLM 5.2, and Composer 2.5.
- Musk also links to a follow-up claim that Grok iterations are coming on a fast cadence.
Related event: Musk Announces Release Timeline for Grok 4.6 and 4.7(10 posts)→
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