Overview
Phi 4 Mini Instruct vs GPT-5.5: side-by-side summary
Phi 4 Mini Instruct and GPT-5.5 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.
Phi 4 Mini Instruct, from Microsoft, has a 131,072-token context window and is priced by the provider serving it on OpenRouter.
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.
- Context window
- Phi 4 Mini Instruct: 131,072 tokens
- GPT-5.5: 1,050,000 tokens
- Price
- Phi 4 Mini Instruct: Pricing varies by provider
- GPT-5.5: $5/M tokens input, $30/M tokens output
- Provided by
- Phi 4 Mini Instruct: Microsoft
- GPT-5.5: OpenAI