Compare GPT-5.4 Mini from OpenAI and MiMo-V2-Pro from Xiaomi on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.
GPT-5.4 Mini and MiMo-V2-Pro are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
GPT-5.4 Mini, from OpenAI, has a 400,000-token context window and is priced at $0.75/M tokens input, $4.50/M tokens output on OpenRouter.
MiMo-V2-Pro, from Xiaomi, has a 1,048,576-token context window and is priced by the provider serving it on OpenRouter.
| Attribute | GPT-5.4 Mini | MiMo-V2-Pro |
|---|---|---|
| Input price | $0.75/M tokens | Pricing varies by provider |
| Output price | $4.50/M tokens | Pricing varies by provider |
| Context window | 400,000 tokens | 1,048,576 tokens |
| Intelligence Index | 19.7 | 28.6 |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | 2.26 s | Not available |
| Throughput (p50) | 131.0 tok/s | Not available |
Benchmark data updated
MiMo-V2-Pro has the longer context window at 1,048,576 tokens, compared with 400,000 tokens for GPT-5.4 Mini.