Longterm Wiki

o3-mini

OpenAI

o3-mini was released January 31, 2025 with three reasoning effort levels (low, medium, high). On high effort, scored 97.9% on MATH and 79.7% on GPQA Diamond. Priced at \$1.10/\$4.40 per million tokens — significantly cheaper than o1. Available in the API and ChatGPT.

Developer
OpenAI
Released
2025-01-31
Context Window
200K tokens

Pricing

TypePrice per MTok
Input$1.1
Output$4.4

Benchmarks3

BenchmarkScore
GPQA Diamond79.7%
MATH97.9%
SWE-bench Verified49.3%

o-series Family5

ModelTierReleasedInput $/MTok
o3flagship2025-04-16$10
o4-minimini2025-04-16$1.1
o1flagship2024-12-05$15
o1-previewpreview2024-09-12$15
o1-minimini2024-09-12$3

Other OpenAI Models7

GPT-4.12025-04-14
GPT (flagship)
GPT-4.1 mini2025-04-14
GPT (mini)
GPT-4.1 nano2025-04-14
GPT (nano)
GPT-4o mini2024-07-18
GPT (mini)
GPT-4o2024-05-13
GPT (flagship)
GPT-4 Turbo2023-11-06
GPT (flagship)
GPT-42023-03-14
GPT (flagship)

Details

Model Familyo-series
Tiermini
Generationo3
Release Date2025-01-31
Context Window200K tokens

Capabilities2

reasoningtool-use

Sources1

Tags

openaireasoningo-seriescost-efficient