+
+
+
+
+
+
+
+
VS
VS
VS
VS
VS
VS
GPT-5 vs GPT-5 Codex
Comprehensive side-by-side LLM comparison
Both models show comparable benchmark performance. GPT-5 supports multimodal inputs. GPT-5 is available on 2 providers. Both models have their strengths depending on your specific coding needs.
+
+
+
+
OpenAI
GPT-5 represents the next generation of OpenAI's foundational models, developed to advance the frontier of AI capabilities in reasoning, knowledge, and general intelligence. Built to push beyond the limitations of GPT-4, it incorporates architectural and training improvements designed to enhance performance across diverse tasks and domains.
+
+
+
+
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 month newer
GPT-5
OpenAI
2025-08-07
GPT-5 Codex
OpenAI
2025-09-15
+
+
+
+
+
+
+
+
+
+
+
+
Performance Metrics
Context window and performance specifications
Average performance across 1 common benchmarks
+
+
+
+
GPT-5
Average Score:74.9%(+0.4%)
+
+
+
+
GPT-5 Codex
Average Score:74.5%
Performance comparison across key benchmark categories
+
+
+
+
GPT-5
Coding74.9%(+0.4%)
+
+
+
+
GPT-5 Codex
Coding74.5%
+
+
+
+
Knowledge Cutoff
Training data recency comparison
GPT-5
2024-09-30
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
+
+
+
+
GPT-5
2 providers
OpenAI
Throughput: 100 tok/s
Latency: 2ms
ZeroEval
Throughput: 100 tok/s
Latency: 2ms
+
+
+
+
+
+
+
+
GPT-5
Avg Score:74.9%(+0.4%)
Providers:2
+
+
+
+
GPT-5 Codex
Avg Score:74.5%
Providers:0