Phi 4 vs Mistral Small 4: side-by-side summary

Phi 4 and Mistral Small 4 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Phi 4, from Microsoft, has a 16,384-token context window and is priced at $0.07/M tokens input, $0.14/M tokens output on OpenRouter.

Mistral Small 4, from Mistral AI, has a 262,144-token context window and is priced at $0.15/M tokens input, $0.60/M tokens output on OpenRouter.

Context window

• Phi 4: 16,384 tokens
• Mistral Small 4: 262,144 tokens

Price

• Phi 4: $0.07/M tokens input, $0.14/M tokens output
• Mistral Small 4: $0.15/M tokens input, $0.60/M tokens output

Provided by

• Phi 4: Microsoft
• Mistral Small 4: Mistral AI

• Phi 4 model details, providers and pricing
• Mistral Small 4 model details, providers and pricing