Comprehensive side-by-side LLM comparison
Phi-3.5-vision-instruct supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
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.
Microsoft
Phi-3.5 Vision was developed as a multimodal variant of Phi-3.5, designed to understand and reason about both images and text. Built to extend the Phi family's efficiency into vision-language tasks, it enables compact multimodal AI for practical applications.
1 year newer

Phi-3.5-vision-instruct
Microsoft
2024-08-23

GPT-5 Codex
OpenAI
2025-09-15
GPT-5 Codex
2024-09-30
Available providers and their performance metrics

GPT-5 Codex

Phi-3.5-vision-instruct

GPT-5 Codex

Phi-3.5-vision-instruct