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Claude Opus 4.1 vs Phi-3.5-mini-instruct
Comprehensive side-by-side LLM comparison
Claude Opus 4.1 leads with 42.3% higher average benchmark score. Phi-3.5-mini-instruct offers 24.0K more tokens in context window than Claude Opus 4.1. Phi-3.5-mini-instruct is $89.80 cheaper per million tokens. Claude Opus 4.1 supports multimodal inputs. Claude Opus 4.1 is available on 4 providers. Overall, Claude Opus 4.1 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
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Microsoft
Phi-3.5 Mini was developed by Microsoft as a small language model designed to deliver impressive performance despite its compact size. Built with efficiency in mind, it demonstrates that capable language understanding and generation can be achieved with fewer parameters, making AI more accessible for edge and resource-constrained deployments.
11 months newer
Phi-3.5-mini-instruct
Microsoft
2024-08-23
Claude Opus 4.1
Anthropic
2025-08-05
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Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
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Phi-3.5-mini-instruct
Input:$0.10
Output:$0.10($89.80 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 2 common benchmarks
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Claude Opus 4.1
Average Score:85.2%(+42.3%)
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Phi-3.5-mini-instruct
Average Score:42.9%
Provider Availability & Performance
Available providers and their performance metrics
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Claude Opus 4.1
4 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
ZeroEval
Throughput: 42 tok/s
Latency: 0.4ms
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Claude Opus 4.1
Avg Score:85.2%(+42.3%)
Providers:4
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Phi-3.5-mini-instruct
Avg Score:42.9%
Providers:1