Aion-3.0 vs Phi 4: side-by-side summary

Aion-3.0 and Phi 4 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Aion-3.0, from Aion Labs, has a 131,072-token context window and is priced at $3/M tokens input, $6/M tokens output on OpenRouter.

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.

Context window

• Aion-3.0: 131,072 tokens
• Phi 4: 16,384 tokens

Price

• Aion-3.0: $3/M tokens input, $6/M tokens output
• Phi 4: $0.07/M tokens input, $0.14/M tokens output

Provided by

• Aion-3.0: Aion Labs
• Phi 4: Microsoft

• Aion-3.0 model details, providers and pricing
• Phi 4 model details, providers and pricing