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Claude 3.5 Sonnet vs o3-pro
Comprehensive side-by-side LLM comparison
Claude 3.5 Sonnet offers 100.0K more tokens in context window than o3-pro. Claude 3.5 Sonnet is $82.00 cheaper per million tokens. Claude 3.5 Sonnet is available on 3 providers. Both models have their strengths depending on your specific coding needs.
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Anthropic
This upgraded version of Claude 3.5 Sonnet was released with significant improvements in coding and agentic tool use. Built to deliver enhanced performance in software engineering tasks, it brought substantial gains in reasoning and problem-solving while introducing the groundbreaking computer use capability in public beta, allowing it to interact with computer interfaces like a human.
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OpenAI
o3-pro was developed as the flagship reasoning model in the o3 family, designed to deliver maximum reasoning depth and reliability for the most challenging analytical tasks. Built for professionals requiring the highest level of thoughtful problem-solving, it extends reasoning capabilities to handle complex multi-step challenges across diverse domains.
7 months newer
Claude 3.5 Sonnet
Anthropic
2024-10-22
o3-pro
OpenAI
2025-06-10
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Pricing Comparison
Cost per million tokens (USD)
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Claude 3.5 Sonnet
Input:$3.00
Output:$15.00($82.00 cheaper)
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o3-pro
Input:$20.00
Output:$80.00
Performance Metrics
Context window and performance specifications
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Knowledge Cutoff
Training data recency comparison
o3-pro
2024-05-31
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude 3.5 Sonnet
3 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 101 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
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Claude 3.5 Sonnet
Avg Score:0.0%
Providers:3
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o3-pro
Avg Score:0.0%
Providers:1