Name: OpenAI o3 and o4-mini Released
Author: OpenAI

Language model rubric2026 criteria

Estimate from the version's published specs, benchmarks and reviews, 0-5; scores are only comparable within one criteria year. Scored on o3 (the flagship; o4-mini shares the 200K window and text+image input, and launched at $1.10/$4.40 per 1M). Context 200K scores 2; text and image input scores 3. Price uses the launch list price of $10 input / $40 output per 1M (blended 17.50 at 3:1, between the 12 and 25 anchors, so 1.5), confirmed on Simon Willison's launch page; OpenAI's model page opened this run now shows the later cut price of $2/$8, which is not used. Reasoning, coding and speed are null: no launch-day Artificial Analysis Intelligence Index entry or Terminal-Bench figure was opened (OpenAI's SWE-bench Verified 69.1% is not an anchor benchmark) and no speed is published. Three independent pages found: TechCrunch, Simon Willison, and a transcript mirror of AI Explained's video; none ran a systematic hands-on test, searches for more hands-on reviews were mostly blocked or aggregators. developers.openai.com

Reviews

OpenAI launches a pair of AI reasoning models, o3 and o4-mini | TechCrunch · techcrunch.com · Apr 16, 2025OpenAI says that o3 achieves state-of-the-art performance on SWE-bench verified (without custom scaffolding), a test measuring coding abilities, scoring 69.1%.
Introducing OpenAI o3 and o4-mini · simonwillison.net · Apr 16, 2025o3 is $10/million input and $40/million for output, with a 75% discount on cached input tokens, 200,000 token context window, 100,000 max output tokens and a May 31st 2024 training cut-off (same as the GPT-4.1 models).
o3 and o4-mini - they’re great, but easy to over-hype — AI Explained — Rosetta · rosetta.to · Apr 16, 2025So, if you ignore the headlines and drown out the hype, which is to be honest good advice for all times in life, o3 represents genuine progress. Well done to OpenAI.

Sentiment over timePositive

Sentiment

Sentiment over time
OpenAI launches a pair of AI reasoning models, o3 and o4-mini \| TechCrunch · Apr 16, 2025	0.60
Introducing OpenAI o3 and o4-mini · Apr 16, 2025	0.10
o3 and o4-mini - they’re great, but easy to over-hype — AI Explained — Rosetta · Apr 16, 2025	0.60

OpenAI o3 and o4-mini Released

OpenAI releases o3, its most powerful reasoning model, and o4-mini, a smaller model optimized for fast, cost-efficient reasoning.

OpenAI released o3, called its most advanced reasoning model, and o4-mini, a cost-efficient reasoning model, on 16 April 2025, with o4-mini-high, to ChatGPT Pro, Plus and Team users^[1][2][3]
OpenAI planned o3-pro for ChatGPT Pro in the coming weeks (released 10 June 2025); Altman indicated o3 and o4-mini might be the last stand-alone reasoning models before GPT-5^[1][2][3]
o3 was originally announced on 20 December 2024; OpenAI later announced its ChatGPT retirement for 26 August 2026, with the API unaffected^[1][2]

Notable features

They were the first models able to 'think with images' (whiteboard sketches, zooming and rotating while reasoning) and can use ChatGPT tools including web browsing, Python and image generation^[3]
OpenAI says o3 set new state-of-the-art results on Codeforces, SWE-bench and MMMU and made 20 percent fewer major errors than o1 on difficult real-world tasks in external expert evaluations; both models were trained with reinforcement learning to reason about when and how to use tools^[4]
o4-mini was the best-performing benchmarked model on AIME 2024 and 2025, scoring 99.5% pass@1 on AIME 2025 with a Python interpreter (o3 98.4%), and supports significantly higher usage limits than o3^[4]
They were also added to the Chat Completions and Responses APIs: o3 at $10 per million input and $40 output tokens, o4-mini at $1.10 and $4.40^[3]
On SWE-bench Verified TechCrunch reports o3 at 69.1% and o4-mini at 68.1%, against o3-mini at 49.3% and Claude 3.7 Sonnet at 62.3%^[3]

Language model rubric2026 criteria

Reviews

Sentiment over timePositive

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OpenAI o3 and o4-mini Released

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