Claude 3 Opus vs Phi 4 Comparison

Comparing Claude 3 Opus and Phi 4 across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Claude 3 Opus outperforms in 4 benchmarks (DROP, HumanEval, MGSM, MMLU), while Phi 4 is better at 3 benchmarks (GPQA, MATH, MMLU-Pro).

Claude 3 Opus has a slight edge in benchmark performance.

Thu Mar 19 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Phi 4 costs less

For input processing, Claude 3 Opus ($15.00/1M tokens) is 214.3x more expensive than Phi 4 ($0.07/1M tokens).

For output processing, Claude 3 Opus ($75.00/1M tokens) is 535.7x more expensive than Phi 4 ($0.14/1M tokens).

In conclusion, Claude 3 Opus is more expensive than Phi 4.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Thu Mar 19 2026 • llm-stats.com

Claude 3 Opus

Input tokens$15.00

Output tokens$75.00

Best providerAnthropic

Phi 4

Input tokens$0.07

Output tokens$0.14

Best providerDeepinfra

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Context Window

Maximum input and output token capacity

Claude 3 Opus accepts 200,000 input tokens compared to Phi 4's 16,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while Phi 4 is limited to 16,000 tokens.

Claude 3 Opus

Input200,000 tokens

Output200,000 tokens

Phi 4

Input16,000 tokens

Output16,000 tokens

Thu Mar 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Opus supports multimodal inputs, whereas Phi 4 does not.

Claude 3 Opus can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3 Opus

Text

Images

Audio

Video

Phi 4

Text

Images

Audio

Video

License

Usage and distribution terms

Claude 3 Opus is licensed under a proprietary license, while Phi 4 uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Claude 3 Opus

Proprietary

Closed source

Phi 4

MIT

Open weights

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Phi 4 was released on 2024-12-12.

Phi 4 is 10 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.1 years ago

Phi 4

Dec 12, 2024

1.3 years ago

9mo newer

Knowledge Cutoff

When training data ends

Phi 4 has a documented knowledge cutoff of 2024-06-01, while Claude 3 Opus's cutoff date is not specified.

We can confirm Phi 4's training data extends to 2024-06-01, but cannot make a direct comparison without Claude 3 Opus's cutoff date.

Claude 3 Opus

—

Phi 4

Jun 2024

Provider Availability

Claude 3 Opus is available from Anthropic, Bedrock, Google. Phi 4 is available from DeepInfra. The availability of providers can affect quality of the model and reliability.