Kimi K2 Thinking vs Grok‑2
Moonshot AI Kimi K2 Thinking | SpaceXAI Grok‑2 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | SpaceXAI |
| Release date | Nov 6 2025 | Aug 14 2024 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Parameters | 1T | — |
Context window | 256k | — |
| 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. | 71.3% | — |
| Timeline | ||
| Release gap | Grok‑2 shipped 449 days before Kimi K2 Thinking | |
Which is better: Kimi K2 Thinking or Grok‑2?
Kimi K2 Thinking and Grok‑2 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Grok‑2 shipped 449 days before Kimi K2 Thinking, so benchmark comparisons should account for the intervening progress.
Kimi K2 Thinking is open weight, while Grok‑2 is proprietary.
Direct benchmark comparisons are unavailable — Kimi K2 Thinking and Grok‑2 don't publish scores on any of the same benchmarks.
Frequently asked questions
Kimi K2 Thinking was released by Moonshot AI on Nov 6 2025.
Grok‑2 was released by SpaceXAI on Aug 14 2024.
Kimi K2 Thinking is an open weight model released by Moonshot AI. Grok‑2 is a proprietary model released by SpaceXAI.
Other comparisons
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