Hi, I am trying to fine tune the gpt-4o-mini-2024-07-18 model but I get the title error after every 99 steps and it restarts. After 3 tries I get “The job failed due to an internal error.”. Please let me know if I’m doing something wrong as my JSONL files seem to be valid. It’s been 1 day

Same error here, been scratching my head over whether it’s an OpenAI issue or something with my .jsonl file. Has anyone been able to successulyy resolve it?

Hi and welcome to the community! Maybe you have affected by the most recent issues with 4o and mini? OpenAI Status Welcome to OpenAI's home for real-time and historical data on system performance. I suggest to try again to see if it works now.

No, I’m still facing the same issue. I’ve tried about 7-8 times in the last 3 hours.

Update: Tried it another 5-6 times. Still no fix. Would greatly appreciate if someone can guide me. I looked at OpenAI status and there’s no such outage being reported for today…

Hi, anyone able to resolve it? I am tryting to fine tune my model nland it fails every time before it reaches 100 steps. I don’t know what to do. Can any OpenAI folks guide me please. I can see many threads on the same issue, but no resolution

"The job experienced an error while training and failed, it has been re-enqueued for retry."

API

Topic		Replies	Views
Internal Error during fine-tuning Bugs fine-tuning , gpt-41	9	435	January 28, 2026
The Job Failed Due to an Internal Error \| Fine-tuning gpt4o-mini API fine-tuning	13	1150	January 2, 2025
Fine tuning fail on gpt-4o-mini-2024-07-18 API fine-tuning , fine-tuning-problems	12	879	March 25, 2025
API fine tune constantly gives me "We're having trouble accessing your files right now. Please try again later." Bugs fine-tuning-problems , files-api	16	470	March 24, 2026
Chatgpt 4o-mini fine-tuning fails.Internal error API chatgpt	7	704	January 2, 2025

"The job experienced an error while training and failed, it has been re-enqueued for retry."

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