DeepSeek-V4-Pro vs Grok‑1.5
DeepSeek DeepSeek-V4-Pro | SpaceXAI Grok‑1.5 | |
|---|---|---|
| Overview | ||
| Company | DeepSeek | SpaceXAI |
| Release date | Apr 24 2026 | Mar 29 2024 |
| Access | Open Weight | Proprietary |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given 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. | 14% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 90.1% | — |
| Timeline | ||
| Release gap | Grok‑1.5 shipped 756 days before DeepSeek-V4-Pro | |
Which is better: DeepSeek-V4-Pro or Grok‑1.5?
DeepSeek-V4-Pro and Grok‑1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑1.5 shipped 756 days before DeepSeek-V4-Pro, so benchmark comparisons should account for the intervening progress.
DeepSeek-V4-Pro is open weight, while Grok‑1.5 is proprietary.
Direct benchmark comparisons are unavailable — DeepSeek-V4-Pro and Grok‑1.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
DeepSeek-V4-Pro was released by DeepSeek on Apr 24 2026.
Grok‑1.5 was released by SpaceXAI on Mar 29 2024.
DeepSeek-V4-Pro is an open weight model released by DeepSeek. Grok‑1.5 is a proprietary model released by SpaceXAI.
Other comparisons
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