Eval bug: gpt-oss reasoning-budget does nothing

[Som-anon]

Name and Version

% ./build/bin/llama-server --version
version: 6138 (60a76588)
built with cc (GCC) 15.1.1 20250729 for x86_64-pc-linux-gnu

I use gpt-oss with --jinja and I tried using --reasoning-budget 0, but it didn't change anything. I assume it is because the --reasoning-format does not exist for it yet, but I didn't spend enough time at looking how the code works to know.

Operating systems

Linux

GGML backends

BLAS

Hardware

i5-8250U

Models

https://huggingface.co/unsloth/gpt-oss-20b-GGUF/blob/main/gpt-oss-20b-UD-Q6_K_XL.gguf

Problem description & steps to reproduce

llama-server --jinia --model gpt.gguf --reasoning-budget 0

Does nothing. It still "reasons"

First Bad Commit

No response

Relevant log output

llama-server --port 50050 --host 0.0.0.0 --model /mnt/nvme/models/gpt/gpt-oss-20b-UD-Q6_K_XL.gguf -c 0 --jinja --reasoning-budget 0

[Som-anon]

Probably a duplicate of #15130