Claude 3.5 Sonnet vs Composer
Anthropic Claude 3.5 Sonnet | Cursor Composer | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Cursor |
| Release date | Jun 20 2024 | Oct 29 2025 |
| Access | Proprietary | 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. | 45% | — |
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. | 33.4% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 59.4% | — |
| Timeline | ||
| Release gap | Claude 3.5 Sonnet shipped 496 days before Composer | |
Which is better: Claude 3.5 Sonnet or Composer?
Claude 3.5 Sonnet and Composer don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.5 Sonnet shipped 496 days before Composer, 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 and Composer don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 3.5 Sonnet was released by Anthropic on Jun 20 2024.
Composer was released by Cursor on Oct 29 2025.
Other comparisons
Claude 3.5 Sonnet vs GPT-5.6 SolComposer vs GPT-5.6 SolClaude 3.5 Sonnet vs Gemini 3.5 FlashComposer vs Gemini 3.5 FlashClaude 3.5 Sonnet vs Muse Spark 1.1Composer vs Muse Spark 1.1Claude 3.5 Sonnet vs Grok 4.5Composer vs Grok 4.5Claude 3.5 Sonnet vs DeepSeek-V4-ProComposer vs DeepSeek-V4-ProClaude 3.5 Sonnet vs Mistral Medium 3.5Composer vs Mistral Medium 3.5