Claude 3.5 Sonnet (upgraded) vs Grok 2.5
Anthropic Claude 3.5 Sonnet (upgraded) | SpaceXAI Grok 2.5 | |
|---|---|---|
| Overview | ||
| Company | Anthropic | SpaceXAI |
| Release date | Oct 22 2024 | Aug 2025 |
| Access | Proprietary | Proprietary |
| Benchmarks | ||
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. | 49% | — |
| Timeline | ||
| Release gap | Claude 3.5 Sonnet (upgraded) shipped 283 days before Grok 2.5 | |
Which is better: Claude 3.5 Sonnet (upgraded) or Grok 2.5?
Claude 3.5 Sonnet (upgraded) 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 Sonnet (upgraded) shipped 283 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 Sonnet (upgraded) and Grok 2.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 3.5 Sonnet (upgraded) was released by Anthropic on Oct 22 2024.
Grok 2.5 was released by SpaceXAI on Aug 2025.
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