Claude Opus 4.8 vs Phi 4
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs Phi 4▼
Which is better, Claude Opus 4.8 or Phi 4?
▼
Based on the Capability Index, Claude Opus 4.8 scores higher (89.2 vs 64.6). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Claude Opus 4.8 or Phi 4?
▼
Phi 4 has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. Phi 4: $0.07 input / $0.14 output.
Which has a larger context window, Claude Opus 4.8 or Phi 4?
▼
Claude Opus 4.8 has a larger context window: Claude Opus 4.8 supports 1M tokens vs Phi 4 at 16K tokens.
Do both Claude Opus 4.8 and Phi 4 support vision?
▼
Claude Opus 4.8 supports vision/image input, but Phi 4 does not.
What are the key differences between Claude Opus 4.8 and Phi 4?
▼
Key differences: Claude Opus 4.8 has a notably higher capability index (24.6 point gap); Phi 4 is significantly cheaper; only Claude Opus 4.8 supports vision input; only Claude Opus 4.8 offers extended reasoning mode. Compare full specs on this page.
Which model should I choose for my use case?
▼
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 Claude Opus 4.8 and Phi 4 for free on idapt.app to see which performs better for your specific needs.