Grok 4.5 tops HighWalk, beating Claude Opus 5 and GPT-5.6 Sol on cost and speed
XFreeze · x · 2026-07-29
Grok 4.5 tops the HighWalk benchmark overall, beating Claude Opus 5, Fable 5, and GPT-5.6 Sol on the combined score.
- The benchmark weights 80% raw quality and 20% operational efficiency.
- Grok 4.5 finished in 1m 52s at a cost of $0.25.
- By comparison:
- Claude Opus 5: 4m 34s, $1.87
- Claude Fable 5: 4m 49s, $2.87
- GPT-5.6 Sol: 16m 49s, $10.14
- The claim is that Grok won on the best balance of intelligence, speed, and cost, not by spending more compute.
Related event: Grok 4.5 Tops the HighWalk Benchmark(3 posts)→
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