Claude 3.5 HaikuvsGrok 2.5
Claude 3.5 Haiku | Grok 2.5 | |
|---|---|---|
| BenchmarksPublished by one model only | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 50% | — |
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 40.6% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 41.6% | — |
| Overview | ||
| Company | Anthropic | SpaceXAI |
| Release date | Oct 22 2024 | Aug 23 2025 |
| Access | Proprietary | Proprietary |
Other comparisons
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Frequently asked questions
Claude 3.5 Haiku and Grok 2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.5 Haiku shipped 305 days before Grok 2.5, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Claude 3.5 Haiku and Grok 2.5 don't publish scores on any of the same benchmarks.