Claude 3.5 Sonnet vs Kimi Linear
Anthropic Claude 3.5 Sonnet | Moonshot AI Kimi Linear | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Moonshot AI |
| Release date | Jun 20 2024 | Oct 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 48B |
| 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 468 days before Kimi Linear | |
Which is better: Claude 3.5 Sonnet or Kimi Linear?
Claude 3.5 Sonnet and Kimi Linear don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3.5 Sonnet shipped 468 days before Kimi Linear, so benchmark comparisons should account for the intervening progress.
Claude 3.5 Sonnet is proprietary, while Kimi Linear is open weight.
Direct benchmark comparisons are unavailable — Claude 3.5 Sonnet and Kimi Linear 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.
Kimi Linear was released by Moonshot AI on Oct 2025.
Claude 3.5 Sonnet is a proprietary model released by Anthropic. Kimi Linear is an open weight model released by Moonshot AI.
Other comparisons
Claude 3.5 Sonnet vs GPT-5.6 SolKimi Linear vs GPT-5.6 SolClaude 3.5 Sonnet vs Gemini OmniKimi Linear vs Gemini OmniClaude 3.5 Sonnet vs Muse Spark 1.1Kimi Linear vs Muse Spark 1.1Claude 3.5 Sonnet vs Grok 4.5Kimi Linear vs Grok 4.5Claude 3.5 Sonnet vs DeepSeek-V4-ProKimi Linear vs DeepSeek-V4-ProClaude 3.5 Sonnet vs Mistral Medium 3.5Kimi Linear vs Mistral Medium 3.5