GPT-5.5 vs MiMo-V2-Pro: side-by-side summary

GPT-5.5 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-5.5, from OpenAI, has a 1,050,000-token context window and is priced at $5/M tokens input, $30/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.

Context window

• GPT-5.5: 1,050,000 tokens
• MiMo-V2-Pro: 1,048,576 tokens

Price

• GPT-5.5: $5/M tokens input, $30/M tokens output
• MiMo-V2-Pro: Pricing varies by provider

Provided by

• GPT-5.5: OpenAI
• MiMo-V2-Pro: Xiaomi

• GPT-5.5 model details, providers and pricing
• MiMo-V2-Pro model details, providers and pricing