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AI Atlas
ModelDeprecatedProprietary

o3-mini

OpenAIdevelopers.openai.com/api/docs/models/o3-mini

A small model alternative to o3

quality72

Updated 16 min ago · first seen 11 Sept 2026

model_01M293V78D80KYS5WDCSNRF3Y2

Context
200K tokens
T2 · 16 min ago
Released
31 Jan 2025
T2 · 16 min ago
Knowledge cutoff
Oct 2023
T2 · 16 min ago

Specification

Release date
31 Jan 2025

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Status
deprecated

Source:OpenAI Platform docsT1observed 34 min agohigh

Openness
proprietary

Source:OpenAI Platform docsT1observed 34 min agohigh

Context window
200K tokens

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Max output
100K tokens

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Knowledge cutoff
Oct 2023

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Modalities
text

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Input modalities
text

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Output modalities
text

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Tokenizer
GPT

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

API model id
o3-mini

Source:OpenAI Platform docsT1observed 35 min agohigh

Deprecation date
22 Apr 2026

Source:OpenAI Platform docsT1observed 34 min agohigh

Retirement date
23 Oct 2026

Source:OpenAI Platform docsT1observed 34 min agohigh

Retirement tentative
No

Source:OpenAI Platform docsT1observed 34 min agohigh

Official page

Source:OpenAI Platform docsT1observed 34 min agohigh

File input
Yes

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Openrouter id
openai/o3-mini

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Retired snapshots
o3-mini-2025-01-31

Source:OpenAI Platform docsT1observed 34 min agohigh

Supported parameters
include_reasoning, max_tokens, reasoning, response_format, seed, structured_outputs, tool_choice, tools

Source:OpenRouter public model & pricing listingT2observed 16 min agomedium

Each value shows its source, tier and observation time. Conflicting claims are kept side by side and flagged — never averaged. How AI Atlas records facts →

Provenance

Attributed facts

23

Source tiers

T1T29 / 14

Freshest observation

16 min ago

Conflicts

None