o5-mini
Small, cheap deep-reasoning follow-up to o4-mini.
OpenAIo-seriesCtx 256k
OpenAI
o-series
Released 2026-02o5-mini
Small, cheap deep-reasoning follow-up to o4-mini.
o5-mini extends the reasoning-first branch with faster thinking budget controls at similar prices.
o-series Published 2026-02#openai#llm#review
Context
256k
Input
$1.20/M
Output
$4.80/M
Released
2026-02
Modalities
Text
Image
Strengths
- Deeper thinking
- Cheaper than o5
- STEM
Best for
Research
Math
o5-mini FAQ
Sources & further reading
Cite this page
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APA
Build on Vibe Editorial (2026). o5-mini Small, cheap deep-reasoning follow-up to o4-mini.. Build on Vibe. Retrieved from https://buildonvibe.site/models/o5-mini
BibTeX
@misc{bov-models-o5-mini,
title = {o5-mini Small, cheap deep-reasoning follow-up to o4-mini.},
author = {Build on Vibe Editorial},
year = {2026},
url = {https://buildonvibe.site/models/o5-mini},
note = {Build on Vibe}
}