Inference Model Eval

inference-model-eval

Purpose

Run quality and accuracy evaluations against a live inference endpoint to validate that a model deployment is fit for promotion. Three benchmark families:

• GPQA - graduate-level Q&A; runs inside the model pod via lm-eval-harness.
• MMLU-Pro - broad multi-task understanding. Runs inside the model pod via lm-eval-harness.
• ExternalEval - externally operated. The workflow records contact and endpoint details, and the operator coordinates with the ExternalEval operator out-of-band.

The eval workflow itself (task selection, in-pod lm-eval-harness invocation, monitoring, results download, ExternalEval handoff) is summarized under "Workflow" below. This skill's main job is the project-specific glue for the evidence bundle and the perf-baseline tie-in.

When to use

• Before promoting a new model to staging or prod - validate quality alongside the perf check (inference-perf-bench).
• After vLLM version bumps, quantization changes (NVFP4 vs FP8 vs BF16), KV-cache-dtype changes - ensure no quality regression.
• Regression check against published baselines (HuggingFace model card, paper numbers).
• Pairing perf-vs-quality A/B for proposed config changes.

Do not use this skill for:

• Inference performance measurement - that is inference-perf-bench.
• Terminal-Bench 2.0 / SWE-Bench Verified at scale - those are larger evaluation-harness runs driven by a dedicated eval pipeline. This skill covers the in-pod lm-eval-harness path only.

Example prompts

• "Run GPQA + MMLU-Pro on the kimi-k25 dev pods."
• "Run model-eval on the new minimax-m2.7 deployment, batch size 64."
• "Quality regression check on glm-5-fp8 after the vllm 0.20 bump."
• /run-model-eval --model kimi-k25 --tasks gpqa,mmlu_pro
• /inference-model-eval --pods c2-kimi-k25-fp4-* --tasks gpqa

Prerequisites

1. kubectl context for a dev cluster.
2. Namespace containing the target pods.
3. HF_TOKEN if the model card / dataset requires it.
4. PROFILE_AND_OPTIMIZE_REPO_ROOT for the result bundle.

Interaction style

Iterative. The workflow pauses naturally at task selection, where the operator chooses which evals to run.

Workflow

Phase A: scaffold an evidence bundle

/evidence-bundle-init --family inference-model-eval \
  --intent "model-eval on <model> tasks=<gpqa,mmlu_pro,external-eval>"

Phase B: run the evals

Select the tasks (GPQA / MMLU-Pro), invoke lm-eval-harness inside the target model pod against the served endpoint, monitor the run, and download the results into the evidence bundle. For ExternalEval, hand off to the ExternalEval operator out-of-band and record the returned scores.

Phase C: tie evals to a perf-baseline registry entry

When a model passes both inference-perf-bench and inference-model-eval, register the perf baseline with a notes field that names the eval scores:

/inference-perf-baseline-bridge record \
  --model <model> \
  --source experiments/artifacts/inference-perf-bench/<run-id>/ \
  --notes "GPQA=<score>; MMLU-Pro=<score>; ExternalEval=<score>"

This lets a future inference-perf-baseline-bridge diff confirm that a perf regression isn't masked by a quality gain (or vice versa).

Safety

• Read-only on the cluster. lm-eval-harness runs inside the existing model pod. The workflow does not create or delete pods.
• No customer-data leakage. GPQA / MMLU-Pro datasets are public. Any in-pod intermediate artifacts should be cleared before the bundle is shared externally.
• ExternalEval is operator-mediated. The skill only displays contact info. Do not auto-DM the ExternalEval operator from any agent surface.

Full-context reporting (no bare numbers)

Per the canon "Every performance number carries its full context (no bare numbers)" (docs/METHODOLOGY.md "Full-context reporting"): every number this skill emits MUST carry its full measurement-context descriptor, and every comparison MUST be matched on it. A bare tok/s / TPOT / BW / %SoL / speedup is a defect - it cannot set a default, ship a config, or appear in a report.

• Identity: model (+HF path), hardware (exact ceiling token GB300/B200), quant, kv-cache dtype.
• Parallelism: TP, DP (replicas), PP, EP, parallel_strategy.
• Serving cfg: max-num-seqs, max-num-batched-tokens, gpu-memory-utilization, max-model-len, cudagraph_mode/enforce_eager, async_scheduling, prefix-caching.
• Workload: dataset, ISL/OSL (or mean in/out tokens), concurrency, num-prompts.
• Regime: warm vs cold. Latency vs throughput tier.
• Stack: image/vllm commit, bench backend, serving engine.
• Grounding: %SoL (+ ceiling key from configs/sol-ceilings.yaml - never inline a peak), sol_rigor (L1-L4), trials n (mean±std), same-node, baseline named.
• Per-number exact shape (no smoothing): when reporting more than one number, keep EACH with its own exact shape (ISL/OSL, concurrency, dataset, regime) - never normalize a set to one uniform descriptor that hides per-point variation (e.g. c=1 @ ISL1024/OSL256 + c=64 @ ISL4096/OSL512, NOT one shared "random").

Quality-eval scores (lm-eval-harness MMLU/GSM8K/etc.) are not directly roofline-bound, so this skill does NOT add a %SoL column to its output. Per docs/METHODOLOGY.md "Speed-of-light framing", the methodology applies to measurement-producing perf skills - eval accuracy is orthogonal. When eval pairs with perf (inference-perf-bench) for a quant-quality-vs-throughput comparison, the perf side carries %SoL and the eval side carries accuracy %.

Next lever / BREAKTHROUGH (Grind Mandate)

If this skill emits a measured result, its output MUST end by naming the next perf lever, its expected unlock (direction + rough magnitude), and the gate that proves/refutes it, per docs/METHODOLOGY.md "Always be grinding". A measured win is the new floor, not the finish -- so do everything we can to find the next BREAKTHROUGH: the highest-EV unlock toward Speed-of-Light (a new champion / kernel / router / quant / parallelism / spec-decode win, or an unblocked stack), not just the next micro-lever. Rank the candidate breakthrough levers by value x cost (the GRIND FRONTIER, perftunereport value_view), pursue the top, bank the rest with evidence. Record WHY a refuted lever loses, update the standing frontier in the active bundle's HANDOFF.md. Never conclude "exhausted/optimal/done" without an explicit next-lever frontier (an empty frontier AND a documented SoL wall only). Delete this section ONLY if the skill produces no measurements.

Source-of-truth references

• Pair: inference-perf-bench - the perf counterpart for full pre-promotion validation.
• inference-perf-baseline-bridge
• ties eval scores to a perf-baseline registry entry (Phase C).
• docs/METHODOLOGY.md - full-context reporting + verdict rigor.