Grok 4.5 vs LongCat-2.0
Both models are evenly matched
Arena ELO
Tie
Cheaper
Tie
Faster
Tie
Detailed Comparison
| Category | Grok 4.5 | LongCat-2.0 |
|---|---|---|
| Provider | xAI | Meituan |
| Context Window | 128K | 128K |
| Input Price ($/1M) | N/A | N/A |
| Output Price ($/1M) | N/A | N/A |
| Arena ELO | N/A | N/A |
| Coding | N/A | N/A |
| Reasoning | N/A | N/A |
| Speed (tokens/sec) | N/A | N/A |
| Open Source | No | Yes |
Frequently Asked Questions
Which has a larger context window?
Grok 4.5 supports 128K context, while LongCat-2.0 supports 128K.
Is Grok 4.5 or LongCat-2.0 open source?
Grok 4.5 is proprietary. LongCat-2.0 is open source.
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