o3
Model ● Covered in 13 stories + Follow
o3 is an OpenAI reasoning model referenced across multiple recent updates and deployments, including use in tools such as OpenAI’s Operator for autonomous computer tasks and in applications like code review and coding agents. Recent coverage also includes evaluation work and research using o3 in areas like logic benchmark performance and bias in simulated hiring decisions, as well as its inclusion in ChatGPT for Business and other business workflows.
Updated 16 September 2026
Specifications
No specifications recorded yet.
Latest developments
Sakana AI super-powers AI reasoning using Japan’s own Sudoku Puzzles
Sakana AI ·
35
AI is more likely than humans to form biases when hiring
MIT Technology Review · 1 month ago ·
36
Resolving digital threats 100x faster with OpenAI
OpenAI · 1 year ago ·
37
Driving scalable growth with OpenAI o3, GPT-4.1, and CUA
OpenAI · 1 year ago ·
5
Addendum to OpenAI o3 and o4-mini system card: OpenAI o3 Operator
OpenAI · 1 year ago ·
42
Shipping code faster with o3, o4-mini, and GPT-4.1
OpenAI · 1 year ago ·
15
Addendum to o3 and o4-mini system card: Codex
OpenAI · 1 year ago ·
4
AGI is not a milestone
AI as Normal Technology · 1 year ago ·
53
Q3 2026
Sakana AI's ALE-Agent wins first place in AtCoder Heuristic Contest 058 Benchmark result
- Sakana AI super-powers AI reasoning using Japan’s own Sudoku Puzzles
- AI is more likely than humans to form biases when hiring
Q3 2025
Q2 2025
OpenAI releases o3 and o4-mini models with advanced reasoning and integrated tool access Model release
- Driving scalable growth with OpenAI o3, GPT-4.1, and CUA
- Addendum to OpenAI o3 and o4-mini system card: OpenAI o3 Operator
- Shipping code faster with o3, o4-mini, and GPT-4.1
- Addendum to o3 and o4-mini system card: Codex
- AGI is not a milestone
- Why We Think
- New in ChatGPT for Business: April 2025
- The State of Reinforcement Learning for LLM Reasoning
- OpenAI o3 and o4-mini System Card
- Introducing OpenAI o3 and o4-mini
Relationships
Products & technology
- OpenAI develops this model · 11 sources
- codex-1 derived from this model · 1 source
- CodeRabbit integrated with this model · 1 source
- Unify integrated with this model · 1 source
Competition
- Sakana AI competes with this model · 1 source