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Add RedHatAI/Qwen3.8-27B-INT4 model config - #54

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taagarwa-rh merged 3 commits into
redhat-et:mainfrom
hannahsmith-rh:add/qwen38-int4-nebius-config
Sep 21, 2026
Merged

taagarwa-rh merged 3 commits into
redhat-et:mainfrom
hannahsmith-rh:add/qwen38-int4-nebius-config

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@hannahsmith-rh

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Adds the INT4-quantized Qwen3.8-27B model config to support Michael's intake request (rounakbende10/rh-swe-bench), to be served on Nebius B200.

  • New RedHatAI/Qwen3.8-27B-INT4 ModelConfig, mirroring the BF16/FP8 siblings (fp8 KV cache, 262144 context) so the leaderboard comparison isolates quantization impact
  • Registered in MODEL_CONFIGS + test coverage
  • Documents OpenRouter/agent API key placeholders in .env.example
  • Bumps version 0.2.4 → 0.2.5 (rebuilds the coding_agent_bench image with these changes)

Register the INT4-quantized Qwen3.8-27B so the job queue can serve it for
Michael's intake request. Mirrors the BF16/FP8 siblings (fp8 KV cache,
262144 context) so the leaderboard comparison isolates quantization impact.
Add ANTHROPIC/OPENAI/OPENROUTER key placeholders needed when submitting
jobs with server_url=openrouter.
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coderabbitai Bot commented Sep 17, 2026

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@taagarwa-rh

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LGTM! What concurrency did you get with this configuration? Please record it in our doc

@hannahsmith-rh

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Measured 16.49x on a single me west1 B200 (262144 context, fp8 KV cache), using the config in this PR.

@taagarwa-rh

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Ok great, I'll get this merged. Please record it in the doc linked above. In the future, please do not bump the version as part of a feature branch. That way if your feature branch is delayed, it doesn't accidentally revert the version

@taagarwa-rh
taagarwa-rh merged commit 084aa7b into redhat-et:main Sep 21, 2026
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2 participants