Claude Sonnet 4vsGrok 3
Claude Sonnet 4 | Grok 3 | |
|---|---|---|
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $3.00Amazon Bedrock | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $15.00Amazon Bedrock | — |
| 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. | 30% | — |
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. | 72.7% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 75.4% | — |
| Overview | ||
| Company | Anthropic | SpaceXAI |
| Release date | May 22 2025 | Feb 17 2025 |
| Access | Proprietary | Proprietary |
Other comparisons
Claude Sonnet 4vsGPT-6 SolGrok 3vsGPT-6 SolClaude Sonnet 4vsGemini 3.8 FlashGrok 3vsGemini 3.8 FlashClaude Sonnet 4vsMuse Spark 1.3Grok 3vsMuse Spark 1.3Claude Sonnet 4vsDeepSeek-V4.1-FlashGrok 3vsDeepSeek-V4.1-FlashClaude Sonnet 4vsMistral Medium 3.5Grok 3vsMistral Medium 3.5Claude Sonnet 4vsKimi K3Grok 3vsKimi K3
Frequently asked questions
Claude Sonnet 4 and Grok 3 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok 3 shipped 94 days before Claude Sonnet 4, 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 Sonnet 4 and Grok 3 don't publish scores on any of the same benchmarks.