Phi 4 vs Claude Sonnet 5
Anthropic's fifth-generation Sonnet — near-Opus intelligence at Sonnet speed and price.
No captured outputs for these models yet.
Frequently Asked Questions: Phi 4 vs Claude Sonnet 5▼
Which is better, Phi 4 or Claude Sonnet 5?
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Based on the Capability Index, Claude Sonnet 5 scores higher (80.1 vs 64.6). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Phi 4 or Claude Sonnet 5?
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Phi 4 has a lower blended cost. Phi 4: $0.07 input / $0.14 output. Claude Sonnet 5: $3.00 input / $15.00 output.
Which has a larger context window, Phi 4 or Claude Sonnet 5?
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Claude Sonnet 5 has a larger context window: Phi 4 supports 16K tokens vs Claude Sonnet 5 at 1M tokens.
Do both Phi 4 and Claude Sonnet 5 support vision?
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Claude Sonnet 5 supports vision/image input, but Phi 4 does not.
What are the key differences between Phi 4 and Claude Sonnet 5?
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Key differences: Claude Sonnet 5 has a notably higher capability index (15.5 point gap); Phi 4 is significantly cheaper; only Claude Sonnet 5 supports vision input; only Claude Sonnet 5 offers extended reasoning mode. Compare full specs on this page.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Phi 4 and Claude Sonnet 5 for free on idapt.app to see which performs better for your specific needs.