Model Comparison

Claude Opus 4.5 vs Phi-3.5-vision-instructWhich is better in 2026?

Comparing Claude Opus 4.5 and Phi-3.5-vision-instruct across benchmarks, pricing, and capabilities.

Verdict: Claude Opus 4.5 vs Phi-3.5-vision-instruct — which is better?

Claude Opus 4.5 (by Anthropic) and Phi-3.5-vision-instruct (by Microsoft) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Choose Claude Opus 4.5 if…

  • you want the most recent training data — it shipped Nov 2025

Choose Phi-3.5-vision-instruct if…

  • you need open weights you can self-host or fine-tune
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Claude Opus 4.5 and Phi-3.5-vision-instruct don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Opus 4.5 specifies input context (200,000 tokens). Only Claude Opus 4.5 specifies output context (64,000 tokens).

Anthropic
Claude Opus 4.5
Input200,000 tokens
Output64,000 tokens
Microsoft
Phi-3.5-vision-instruct
Input- tokens
Output- tokens
Sat Jun 06 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 4.5 and Phi-3.5-vision-instruct support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Opus 4.5

Text
Images
Audio
Video

Phi-3.5-vision-instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Opus 4.5 is licensed under a proprietary license, while Phi-3.5-vision-instruct uses MIT.

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

Claude Opus 4.5

Proprietary

Closed source

Phi-3.5-vision-instruct

MIT

Open weights

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Phi-3.5-vision-instruct was released on 2024-08-23.

Claude Opus 4.5 is 15 months newer than Phi-3.5-vision-instruct.

Claude Opus 4.5

Nov 24, 2025

6 months ago

1.3yr newer
Phi-3.5-vision-instruct

Aug 23, 2024

1.8 years ago

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a documented knowledge cutoff of 2025-03-31, while Phi-3.5-vision-instruct's cutoff date is not specified.

We can confirm Claude Opus 4.5's training data extends to 2025-03-31, but cannot make a direct comparison without Phi-3.5-vision-instruct's cutoff date.

Claude Opus 4.5

Mar 2025

Phi-3.5-vision-instruct

—

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Microsoft
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4.5
Microsoft
Phi-3.5-vision-instruct

FAQ

Common questions about Claude Opus 4.5 vs Phi-3.5-vision-instruct.

Which is better, Claude Opus 4.5 or Phi-3.5-vision-instruct?

Claude Opus 4.5 (Anthropic) and Phi-3.5-vision-instruct (Microsoft) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude Opus 4.5 compare to Phi-3.5-vision-instruct in benchmarks?

Claude Opus 4.5 scores Tau2 Telecom: 98.2%, MMMLU: 90.8%, Tau2 Retail: 88.9%, GPQA: 87.0%, SWE-Bench Verified: 80.9%. Phi-3.5-vision-instruct scores ScienceQA: 91.3%, POPE: 86.1%, MMBench: 81.9%, ChartQA: 81.8%, AI2D: 78.1%.

What are the context window sizes for Claude Opus 4.5 and Phi-3.5-vision-instruct?

Claude Opus 4.5 supports 200K tokens and Phi-3.5-vision-instruct supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 4.5 and Phi-3.5-vision-instruct?

Key differences include licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4.5 and Phi-3.5-vision-instruct?

Claude Opus 4.5 is developed by Anthropic and Phi-3.5-vision-instruct is developed by Microsoft.

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