Can't use o3-mini with aider 0.73. Error "litellm.NotFoundError: OpenAIException - Error code: 404". o1-mini works fine

[it-sha]

Issue

Aider: 0.73.0
Model: openai/o3-mini

Model o1-mini works fine

$ aider --model o1-mini
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── 
Aider v0.73.0
Main model: o1-mini with whole edit format
Weak model: gpt-4o-mini
Git repo: .git with 42 files
Repo-map: using 4096 tokens, files refresh
───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────── 
> hi

Understood. I'll follow your guidelines for any future code changes.

o3-mini returns error messages:

$ aider --model o3-mini
─────────────────────────────────────────────────────────────────────────────────────────────── 
Aider v0.73.0
Main model: o3-mini with diff edit format
Weak model: gpt-4o-mini
Git repo: .git with 42 files
Repo-map: using 4096 tokens, files refresh
───────────────────────────────────────────────────────────────────────────────────────────────
> hi


litellm.NotFoundError: OpenAIException - Error code: 404 - {'error': {'message': 'The model 
`o3-mini` does not exist or you do not have access to it.', 'type': 'invalid_request_error', 
'param': None, 'code': 'model_not_found'}}



$ aider --list-models openai/
─────────────────────────────────────────────────────────────────────────────────────────────── 
Models which match "openai/":
...
- openai/o1
- openai/o1-2024-12-17
- openai/o1-mini
- openai/o1-mini-2024-09-12
- openai/o1-preview
- openai/o1-preview-2024-09-12
- openai/o3-mini
- openai/o3-mini-2025-01-31

$ aider --model openai/o3-mini
─────────────────────────────────────────────────────────────────────────────────────────────── 
Aider v0.73.0
Main model: openai/o3-mini with diff edit format
Weak model: gpt-4o-mini
Git repo: .git with 42 files
Repo-map: using 4096 tokens, files refresh
─────────────────────────────────────────────────────────────────────────────────────────────── 
> hi


litellm.NotFoundError: OpenAIException - Error code: 404 - {'error': {'message': 'The model 
`o3-mini` does not exist or you do not have access to it.', 'type': 'invalid_request_error',    
'param': None, 'code': 'model_not_found'}}

───────

Environment:
Microsoft Windows 11 Pro

$ python3 --version
Python 3.11.9

Aider installed by this way:
https://aider.chat/2025/01/15/uv.html#one-liners

If you need any additional info please let me know

[KalenJosifovski]

Same here. Exact same config options as @it-sha except on macosx. Exact same error

[Klohto]

Only Tier 3 to Tier 5 have access.

curl https://api.openai.com/v1/models \
  -H "Authorization: Bearer $OPENAI_API_KEY"

[gitkenan]

Only Tier 3 to Tier 5 have access.

curl https://api.openai.com/v1/models
-H "Authorization: Bearer $OPENAI_API_KEY"

Yup, this is the problem - evidenced by it being an OpenAIException and not an Aider issue

[it-sha]

Thanks for answer. It looks like I am not on this Tier.

Do we have some option to get access to o3-mini high? Open Router do not provide it, but maybe some other provider?

[Klohto]

Azure is a possibility, but that also requires a special access.

[ahalekelly]

I spent money to upgrade to Tier 3 and get access, only to find out that upgrading tiers does not gaurantee access. From an OpenAI employee:

The “select developers on API usage tiers 3-5” that the blog post mentions were chosen on Weds, meaning, if you reached tier 3 or higher after that, you won’t have access today. It’s not automatic, and I’m sorry that this wasn’t clearer earlier.

And that said, being in one of these tiers does not guarantee access immediately. For safety and security reasons, I can’t disclose all the eligibility criteria—but the “select”, established developers within those tiers that receive access first are those that are known to be using the models in good ways.

We’ll be doing more passes next week and so forth—both in giving access to more developers within tiers 3-5 and adding any new developers who recently reached tier 3 (and you’ll receive an email once o3-mini’s been enabled for your account).

[it-sha]

@ahalekelly I feel your pain. Thank you for sharing your experience.
I hear that there is more than one condition to get access. One of them was a tier and the second was one was 14 days of using this tear.

UPDATE: Sorry, in your link, it was mentioned as well. 14 days+ is not a guarantee for access, as well

@Klohto Thanks for advice. Unfortunately Azure provides huge limitations (4к tokens for input/output, details: https://docs.github.com/en/github-models/prototyping-with-ai-models#rate-limits)

I found that Glama.ai provides access to o3-mini-high via API (https://glama.ai/models/o3-mini-high) but I can't find a way to use it with Aider

Maybe you could give me some advice to do that?

[Klohto]

I found that Glama.ai provides access to o3-mini-high via API (https://glama.ai/models/o3-mini-high) but I can't find a way to use it with Aider

https://aider.chat/docs/llms/openai-compat.html

OPENAI_API_BASE=https://glama.ai/api/gateway/openai/v1
OPENAI_API_BASE=GLAMA_API_KEY

then just call openai/o3-mini-high

[it-sha]

@Klohto Thank you a lot! I will try

[SeaDude]

I have access to o3-mini but I get the error:

litellm.BadRequestError: OpenAIException - Error code: 400 - {'error': {'message': "Unsupported parameter: 
'temperature' is not supported with this model.", 'type': 'invalid_request_error', 'param': 'temperature', 'code': 
'unsupported_parameter'}}

Please advise on how to use aider with o3-mini-*

Thank you

[vladiliescu]

Same error as @SeaDude for azure/o3-mini. azure/o1-mini works.

Aider v0.73.0
Main model: azure/o3-mini with whole edit format
Weak model: azure/gpt-4o
Git repo: .git with 44 files
Repo-map: using 4096 tokens, auto refresh
────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
> hi


litellm.BadRequestError: AzureException BadRequestError - Error code: 400 - {'error': {'message': "Unsupported
parameter: 'temperature' is not supported with this model.", 'type': 'invalid_request_error', 'param':
'temperature', 'code': 'unsupported_parameter',

[paul-gauthier]

Thanks for trying aider and filing this issue.

The fix is available in the main branch. You can get it by installing the latest version from github:

aider --install-main-branch

# or...

python -m pip install --upgrade --upgrade-strategy only-if-needed git+https://github.com/Aider-AI/aider.git

If you have a chance to try it, let me know if it works better for you.

This is because you need to set model settings for any provider's o3 to disable temperature use.

[it-sha]

@paul-gauthier
after aider --install-main-branch

checked with

// .env
OPENAI_API_BASE=https://glama.ai/api/gateway/openai/v1
OPENAI_API_BASE=GLAMA_API_KEY

then just call openai/o3-mini-high

[paul-gauthier]

Thanks for trying aider and filing this issue. This doc may be helpful:

https://aider.chat/docs/config/reasoning.html

[bradsjm]

Thanks for trying aider and filing this issue.

The fix is available in the main branch. You can get it by installing the latest version from github:

aider --install-main-branch

# or...

python -m pip install --upgrade --upgrade-strategy only-if-needed git+https://github.com/Aider-AI/aider.git

If you have a chance to try it, let me know if it works better for you.

This is because you need to set model settings for any provider's o3 to disable temperature use.

I changed nothing but installed the main branch from the command and the temperature error is now gone for me and it appears to be working as expected.

[yaskin]

use deepseek

[github-actions]

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