SIDE BY SIDE
o3 Mini High vs o4 Mini
Both are OpenAI o-series models. o4 Mini was added to OpenRouter on 2025-04-16, o3 Mini High on 2025-02-12.
| Field | o3 Mini High | o4 Mini |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Family | OpenAI o-series | OpenAI o-series |
| Province | Silvergrass Fields | Silvergrass Fields |
| Context window | 200K tokens | 200K tokens |
| Maximum output | 100K tokens | 100K tokens |
| Input / 1M tokens | $1.10 | $1.10 |
| Output / 1M tokens | $4.40 | $4.40 |
| Accepts | text, files | text, files, images |
| Produces | text | text |
| Reasoning | Yes | Yes |
| Tool use | Yes | Yes |
| Added to OpenRouter | 2025-02-12 | 2025-04-16 |
| Model ID | openai/o3-mini-high | openai/o4-mini |
Questions and answers
Which is cheaper, o3 Mini High or o4 Mini?
They cost the same: $1.10 per million input tokens and $4.40 per million output tokens.
Which has the larger context window?
Both have a 200K-token context window.
What can one do that the other cannot?
Only o4 Mini supports image input.
Answers are computed from the 2026-10-24 catalog snapshot.