xAI: Grok 4.20 vs MoonshotAI: Kimi K2.6
Side-by-side comparison — pricing, context window, capabilities, and live leaderboard data.
Key differences
- xAI: Grok 4.20 has a 2000K-token context window — 7.6× larger than MoonshotAI: Kimi K2.6's 262K.
- MoonshotAI: Kimi K2.6 is 42% cheaper per 1K input tokens than xAI: Grok 4.20 ($0.0007 vs $0.0013).
- xAI: Grok 4.20 is built by xAI; MoonshotAI: Kimi K2.6 is built by OpenRouter.
Specifications
| xAI: Grok 4.20 | MoonshotAI: Kimi K2.6 | |
|---|---|---|
| Provider | xAI | OpenRouter |
| Context window | 2000K | 262K |
| Max output tokens | 8192 | 8192 |
| Input price / 1K tokens | $0.0013 | $0.0007 |
| Output price / 1K tokens | $0.0025 | $0.0035 |
| Vision support | Yes | Yes |
| Function calling | No | No |
| License | Proprietary | Open Weights |
About xAI: Grok 4.20
US·ClosedGrok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
View xAI: Grok 4.20 reliability and benchmark history →About MoonshotAI: Kimi K2.6
CN·Open weightsKimi K2.6 is Moonshot AI's next-generation multimodal model, designed for long-horizon coding, coding-driven UI/UX generation, and multi-agent orchestration. It handles complex end-to-end coding tasks across Python, Rust, and Go, and...
View MoonshotAI: Kimi K2.6 reliability and benchmark history →Try them yourself
Run the same prompt against xAI: Grok 4.20 and MoonshotAI: Kimi K2.6 side-by-side on PromptPit.
Start a comparison