Claude 3 Opus vs Kimi Linear
Anthropic Claude 3 Opus | Moonshot AI Kimi Linear | |
|---|---|---|
| Overview | ||
| Company | Anthropic | Moonshot AI |
| Release date | Mar 4 2024 | Oct 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 48B |
| 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. | 33% | — |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 50.4% | — |
| Timeline | ||
| Release gap | Claude 3 Opus shipped 576 days before Kimi Linear | |
Which is better: Claude 3 Opus or Kimi Linear?
Claude 3 Opus and Kimi Linear don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude 3 Opus shipped 576 days before Kimi Linear, so benchmark comparisons should account for the intervening progress.
Claude 3 Opus is proprietary, while Kimi Linear is open weight.
Direct benchmark comparisons are unavailable — Claude 3 Opus and Kimi Linear don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude 3 Opus was released by Anthropic on Mar 4 2024.
Kimi Linear was released by Moonshot AI on Oct 2025.
Claude 3 Opus is a proprietary model released by Anthropic. Kimi Linear is an open weight model released by Moonshot AI.
Other comparisons
Claude 3 Opus vs GPT-5.6 SolKimi Linear vs GPT-5.6 SolClaude 3 Opus vs Gemini OmniKimi Linear vs Gemini OmniClaude 3 Opus vs Muse Spark 1.1Kimi Linear vs Muse Spark 1.1Claude 3 Opus vs Grok 4.5Kimi Linear vs Grok 4.5Claude 3 Opus vs DeepSeek-V4-ProKimi Linear vs DeepSeek-V4-ProClaude 3 Opus vs Mistral Medium 3.5Kimi Linear vs Mistral Medium 3.5