The author says they tested Grok 4.6 and Opus 5 with the same prompt:
Grok 4.6: approximately $1.74, completed in about 5 minutes.
Opus 5: approximately 9 minutes, consuming 17% of its daily allowance.
The author asks readers which model won; opinions in the comments are divided. Some consider Opus 5's quality better, while others believe Grok's speed and price advantages are enough to change the choice.
This is not a fully controlled benchmark: the original task, model tiers, harness, and artifact scoring were not fully disclosed in the original post. It is therefore better suited as a subjective cost/speed example than as a quality ranking.
When a task can tolerate one retry and needs to be completed quickly, Grok 4.6's low cost and short turnaround are highly attractive. For tasks involving animation, visual detail, or a higher bar for a high-quality first-pass deliverable, artifact quality should be compared separately.
Grok 4.6
