GPT-5.4 vs LongCat-2.0
GPT-5.4 leads in 5 of 8 categories
Arena ELO
GPT-5.4
Cheaper
GPT-5.4
Faster
GPT-5.4
Detailed Comparison
| Category | GPT-5.4 | LongCat-2.0 |
|---|---|---|
| Provider | OpenAI | Meituan |
| Context Window | 1M WIN | 128K |
| Input Price ($/1M) | $3 WIN | N/A |
| Output Price ($/1M) | $15 WIN | N/A |
| Arena ELO | 1560 WIN | N/A |
| Coding | unknown | N/A |
| Reasoning | unknown | N/A |
| Speed (tokens/sec) | ~50 t/s WIN | N/A |
| Open Source | No | Yes |
Frequently Asked Questions
Which is better for coding, GPT-5.4 or LongCat-2.0?
GPT-5.4 scores unknown on coding benchmarks, while LongCat-2.0 scores N/A.
Which has a larger context window?
GPT-5.4 supports 1M context, while LongCat-2.0 supports 128K.
Is GPT-5.4 or LongCat-2.0 open source?
GPT-5.4 is proprietary. LongCat-2.0 is open source.
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