Model comparison
OpenAI o3 vs GPT-5
Capability radar, value bars, and side-by-side posture.
OpenAI o3
Not scored
value score
GPT-5
94
value score
OpenAI o3 ctx
200K
GPT-5 ctx
400K
Capability radar
Value · context · multimodal · openness · speed posture
Value head-to-head
- GPT-594
Attribute tape
| Field | OpenAI o3 | GPT-5 |
|---|---|---|
| Developer | OpenAI | OpenAI |
| Context | 200K | 400K |
| Modalities | Text, Code, Image, Audio | |
| Openness | Closed | Proprietary Model |
| Speed | — | Fast |
| Price | $10/1M in · $40/1M out | Mid-High |
| Value score | — | 94 |
| Summary | OpenAI o3 is a frontier reasoning model that allocates additional compute to step-by-step deliberation before responding, excelling at coding, mathematics, science, and multi-step analysis. It is the most capable model in OpenAI's o-series and supports text, code, image input, and broad tool use via the API and ChatGPT. | OpenAI frontier multimodal model. |