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Claude 3 Opus vs GPT-5 Codex
Comprehensive side-by-side LLM comparison
Claude 3 Opus supports multimodal inputs. Claude 3 Opus is available on 3 providers. Both models have their strengths depending on your specific coding needs.
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Anthropic
Claude 3 Opus was developed as the most capable model in the Claude 3 family, designed to set new industry benchmarks across a wide range of cognitive tasks. Built to handle complex analysis and extended tasks requiring deep reasoning, it balanced frontier intelligence with careful safety considerations, representing the flagship tier of the Claude 3 generation.
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OpenAI
GPT-5 Codex was developed as a specialized variant of GPT-5 optimized for programming and software development tasks. Built to understand and generate code across multiple programming languages, it serves developers with enhanced capabilities for code completion, debugging, translation, and explanation of complex codebases.
1 year newer
Claude 3 Opus
Anthropic
2024-02-29
GPT-5 Codex
OpenAI
2025-09-15
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Performance Metrics
Context window and performance specifications
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Knowledge Cutoff
Training data recency comparison
GPT-5 Codex
2024-09-30
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 3 Opus
3 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.5ms
Bedrock
Throughput: 120 tok/s
Latency: 0.5ms
Throughput: 42 tok/s
Latency: 0.4ms
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Claude 3 Opus
Avg Score:0.0%
Providers:3
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GPT-5 Codex
Avg Score:0.0%
Providers:0