Claude Sonnet 4 vs LLaMA 4 Maverick
Anthropic Claude Sonnet 4 | Meta LLaMA 4 Maverick | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Meta |
| Release date | May 22 2025 | Apr 5 2025 |
| Access | Proprietary | Open Weight |
| 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. | 30%Best | 28% |
Coding SWE-Bench VerifiedReal 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. | 72.7% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 75.4% | — |
| Timeline | ||
| Release gap | LLaMA 4 Maverick shipped 47 days before Claude Sonnet 4 | |
Which is better: Claude Sonnet 4 or LLaMA 4 Maverick?
Claude Sonnet 4 leads LLaMA 4 Maverick on 1 of the 1 benchmark they both report (BullshitBench v2). LLaMA 4 Maverick shipped 47 days before Claude Sonnet 4, so benchmark comparisons should account for the intervening progress.
Claude Sonnet 4 is proprietary, while LLaMA 4 Maverick is open weight.
On BullshitBench v2, Claude Sonnet 4 leads at 30% vs LLaMA 4 Maverick at 28%.
Frequently asked questions
Claude Sonnet 4 was released by Anthropic on May 22 2025.
LLaMA 4 Maverick was released by Meta on Apr 5 2025.
Claude Sonnet 4 is a proprietary model released by Anthropic. LLaMA 4 Maverick is an open weight model released by Meta.
Other comparisons
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