Comprehensive side-by-side LLM comparison
o3-pro offers 44.0K more tokens in context window than Phi-3.5-mini-instruct. Phi-3.5-mini-instruct is $99.80 cheaper per million tokens. o3-pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
o3-pro is a multimodal language model developed by OpenAI. It supports a 300K token context window for handling large documents. The model is available through 1 API provider. As a multimodal model, it can process and understand text, images, and other input formats seamlessly. Released in 2025, it represents OpenAI's latest advancement in AI technology.
Microsoft
Phi-3.5-mini-instruct is a language model developed by Microsoft. The model shows competitive results across 31 benchmarks. It excels particularly in GSM8k (86.2%), ARC-C (84.6%), RULER (84.1%). It supports a 256K token context window for handling large documents. The model is available through 1 API provider. It's licensed for commercial use, making it suitable for enterprise applications. Released in 2024, it represents Microsoft's latest advancement in AI technology.
9 months newer
Phi-3.5-mini-instruct
Microsoft
2024-08-23
o3-pro
OpenAI
2025-06-10
Cost per million tokens (USD)
o3-pro
Phi-3.5-mini-instruct
Context window and performance specifications
Average performance across 31 common benchmarks
o3-pro
Phi-3.5-mini-instruct
o3-pro
2024-05-31
Available providers and their performance metrics
o3-pro
OpenAI
Phi-3.5-mini-instruct
o3-pro
Phi-3.5-mini-instruct
o3-pro
Phi-3.5-mini-instruct
Azure