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GPT-5 Codex vs GPT-5 Mini
Comprehensive side-by-side LLM comparison
GPT-5 Mini supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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OpenAI
GPT-5 Codex, released by OpenAI in August 2025, is a coding-specialized large language model from the GPT-5 family engineered for software engineering, code generation, and agentic development workflows. It builds on GPT-5's architecture with optimizations targeting multi-file code editing, test generation, and automated debugging. GPT-5 Codex targets developers and agentic coding tools requiring a model tuned specifically for programming tasks.
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OpenAI
GPT-5 mini, released by OpenAI in August 2025, is a smaller variant from the GPT-5 family that inherits GPT-5's unified reasoning architecture and multimodal capabilities at a reduced inference cost. It targets high-volume production use cases requiring a balance of intelligence and response speed, offering GPT-5 capabilities for applications where full GPT-5 inference costs are a concern.
Launched on the same date
GPT-5 Codex
OpenAI
2025-08
GPT-5 Mini
OpenAI
2025-08
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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GPT-5 Codex
0 providers
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GPT-5 Mini
1 providers
OpenAI
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GPT-5 Codex
Avg Score:0.0%
Providers:0
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GPT-5 Mini
Avg Score:0.0%
Providers:1