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Claude Opus 4 vs o3-mini
Comprehensive side-by-side LLM comparison
Claude Opus 4 leads with 19.2% higher average benchmark score. Claude Opus 4 offers 28.0K more tokens in context window than o3-mini. o3-mini is $84.50 cheaper per million tokens. Claude Opus 4 supports multimodal inputs. Claude Opus 4 is available on 4 providers. Overall, Claude Opus 4 is the stronger choice for coding tasks.
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Anthropic
Claude Opus 4 was developed as the flagship model in the Claude 4 generation, designed to push the boundaries of AI capability in complex reasoning, analysis, and multi-step problem-solving. Built to handle the most demanding enterprise tasks, it represents Anthropic's highest tier of intelligence and capability.
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OpenAI
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
3 months newer
o3-mini
OpenAI
2025-01-30
Claude Opus 4
Anthropic
2025-05-22
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Pricing Comparison
Cost per million tokens (USD)
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Claude Opus 4
Input:$15.00
Output:$75.00
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o3-mini
Input:$1.10
Output:$4.40($84.50 cheaper)
Performance Metrics
Context window and performance specifications
Average performance across 4 common benchmarks
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Claude Opus 4
Average Score:73.3%(+19.2%)
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o3-mini
Average Score:54.1%
Performance comparison across key benchmark categories
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Claude Opus 4
Coding72.5%(+23.2%)
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o3-mini
Coding49.3%
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Knowledge Cutoff
Training data recency comparison
o3-mini
2023-09-30
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 Opus 4
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
Avg Score:73.3%(+19.2%)
Providers:4
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o3-mini
Avg Score:54.1%
Providers:2