Announcement: Release of o3 and o4 mini - April 16, 2025

I think the clue is hard to miss.
Will there be more?

Event starts at:
2025-04-16T17:00:00Z

This topic will be updated as the event unfolds!

Here is the link to the YouTube stream:

Thanks @polepole !

Comments during the event will be deactivated. Share your impressions and thoughts here instead!

Looking forward to it!

11 Likes
4 Likes

They are unbagging cats in the title of the video…

GPT-4.1 was quite resistant to turning a script into a non-crashing UI that also functions. Probably trained too much on style sheets…

GDB demoing again after 2 years.

2025-04-16 17:25:00 UTC: o3
2025-04-16 17:25:00 UTC: o3-2025-04-16
2025-04-16 17:25:00 UTC: o4-mini
2025-04-16 17:25:00 UTC: o4-mini-2025-04-16

Codex CLI client from OpenAI!!!

1 Like

System card for the new models:

Page on thinking with images:

https://openai.com/index/thinking-with-images/

API pricing for new models:

Model Description Input/Mtok Cached Input/Mtok Output/Mtok
o3 Our most powerful reasoning model with leading performance on coding, math, science, and vision $10.00 $2.50 $40.00
o4-mini Our faster, cost-efficient reasoning model delivering strong performance on math, coding and vision $1.100 $0.275 $4.40
1 Like

https://openai.com/index/introducing-o3-and-o4-mini/

https://openai.com/index/o3-o4-mini-system-card/

https://cdn.openai.com/pdf/2221c875-02dc-4789-800b-e7758f3722c1/o3-and-o4-mini-system-card.pdf

https://platform.openai.com/docs/models/o3

https://platform.openai.com/docs/models/o4-mini

BONUS:

https://openai.com/index/thinking-with-images/

1 Like

Finally, the much-awaited moment of ultimate naming conflict has arrived: 4o vs. o4.
4o-mini vs. o4-mini.

I still can’t understand the terrible idea of naming the reasoning models with an “o” instead of an “r,” especially considering they’ve already used “o” in the GPT family. :joy:

2 Likes

The new “verify your ID” now required on these models for:

-Any access to tier 1-3

  • reasoning summaries
  • streaming o3
  • more to come?

While the verification help page claims the need is because of input abuse…

It appears the documentation is still being updated regularly. I expect the most up to date information will always be available here:

https://help.openai.com/en/articles/10910291-api-organization-verification

Besides the fact that it was really cool to see o3 in action, there are two other fantastic details worth pointing out:

  • The costs for o3 are much—repeat, much—lower than anticipated.

  • There’s no indefinite waiting period for the EU and other countries. It has already arrived in the API and ChatGPT

Tthis is rather fundamental information to present when finding this forum topic - and thinking you’d be able to employ the API reference:

HTTP error occurred: 400 - {
  "error": {
    "message": "Your organization must be verified to generate reasoning summaries. Please go to: https://platform.openai.com/settings/organization/general and click on Verify Organization.",
    "type": "invalid_request_error",
    "param": "reasoning.summary",
    "code": "unsupported_value"
  }
}

Error: Client error '400 Bad Request' for url 'https://api.openai.com/v1/responses'
For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/400

O3 is simply - no streaming without verification. Becuase of the trust required in doing so?

1 Like

Edit: please refer to the official help pages for all questions regarding this matter.
The reply below it’s outdated and by now incorrect.

https://help.openai.com/en/articles/10910291-api-organization-verification


Mea culpa, I need to specify this information:

Tier 4 and 5 will not have to verify but Tier 1-3 must do so.

2 Likes

So it’s an Agent wrapper?

Verified API access for Tier 1 , specifically o4 mini - o4-mini-2025-04-16. I am running evals and still early thoughts/data points but this could really impact RAG use cases and alleviate citation hallucinations. Organization Verification is not enforced, perhaps should be enforced.

1 Like

o4-mini-high huge downgrade

2 Likes

Is there any plans to enable fine-tuning of reasoning model?