Grok 4.5 reportedly solves 21 of 23 tasks on VulcanBench v3
eyishazyer · x · 2026-07-24
Coding benchmark claim
- The model reportedly solved 21 of 23 tasks on VulcanBench v3, a benchmark aimed at multi-file repository work rather than toy problems.
- It is said to reach 91.3% overall, ahead of Fable 5 and GPT-5.6 Sol.
The catch
- The thread says other benchmarks tell a different story:
- Fable 5 wins Terminal-Bench and DeepSWE.
- Opus 4.8 edges Grok on DeepSWE 1.1.
- Grok’s clear win is SWE Marathon.
- The author’s point: it is not dominating every benchmark, but it is making a strong case on one very relevant coding test.
Related event: xAI's Flagship Grok 4.5 Launches Across All Platforms Simultaneously(16 posts)→
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